BielakP

New Head-Fier
How I became a balance-sound lover
Pros: - clean, detailed reproduction of sound
- analytical playing that remains melodic at the same time
- great balance on all frequencies
- good technicalities
- exceptionally clean upper-mids and treble
- good cable with modular terminations and finally not too much-bent ear-hook
- treble execution that doesn't fatigue
- great passive isolation
Cons: - will not appeal to bassheads
- not very entertaining sound may not appeal to people seeking fun sounding (subjective)
- the weight of the notes could be a bit bigger, but this could also just be a feature of this set
- vocals could sound just a bit more natural
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INTRODUCTION

Dear reader, please keep in mind that whenever there is an opinion in a review, it is my opinion, which may differ significantly from yours. We are all different from each other and have different tastes. Something, that does not give me an accelerated heartbeat, may bring you much fun, so I always recommend listening before buying, if there is such an opportunity. I would also like to point out that in the evaluation of individual parameters, as well as the entire set, I try to relate to the price level that has been set for them, which simply means that any opinion I give should be followed by the thought “.... for its price”. I believe this is the only fair form of evaluation and best represents the value of the reviewed item.

PRESENTATION

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The headphones come in standard Letshuoer packaging, so a two-chamber box with a drawer. Included are the headphones, cable, screwable container, three pieces of L-shaped modular cable terminations (3.5, 4.4, and 2.5), a set of tips (6 pairs), and some literature (instructions, warranty). As is always the case with Letshuoer, everything matches in color and overall looks very professional. The cable has a length of 1.2m and is made of 392 bundles of silver-coated monocrystalline copper. A 2-pin 0.78mm connector goes to the headphones, and on the other side, there is a socket for modular terminals. What I would like to draw your attention to is the way the so-called ear-hook is made, i.e. the rounding that is applied over the ear. My previous experience with Letshuoer cables (DZ4, S15) was, unfortunately, not one of the best, because the way this part of the cable was bent was such that I could not use it. I had to perform the infamous act of cutting the rubber stiffener, which freed the cable to a loose form, and only then it could be used. Here we have a new way of bending. I have no intention of doing anything to it this time, because it just works fine, the way it is. It works well enough that I used this cable when testing another headphone set. It seems to me that this follows the feedback sent by many reviewers to which the company has responded, improving the quality of the product. Bravo Letshuoer! As for the rest of the set, the container lies unused, because the screwable form doesn’t work well as a portable audio storage case, more for storage. The modular tips work great. I have changed them several times according to my needs and had no problems with them.

As usual: Letsuoer presents its products in a great way.

As for the appearance of the headphones themselves, they look great in my opinion. I have seen reviews in which some people complain about the plastic construction, giving the impression of a low-end product. I would completely disagree with this. In my opinion, they are built very solidly. According to the manufacturer's description, the handset chamber is a 3D print made of resin. You can't see any places where the parts are joined. The shape is also perfect for my ear, i.e. I didn't have even the slightest problem using them for several hours, and I got the right fit from the first moment I put the headphones in my ear. They also provide passive muting comfort at a very good level, allowing you to enjoy music even in a crowded place, like subway. In addition, they are surprisingly lightweight, so they don't weigh you down during use.

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LISTENING IMPRESSIONS

The first thing that struck me was the clarity of the sound. Everything sounds very clear, and what is most important to me, and in my opinion most characteristic of this set, the sounds of the upper midrange sound exceptionally clear here. This area of the frequency range, where much of the budget set failed, here is refined and clean.

Another thing that “caught my ears” was the balance in the sound. In the Cadenza 4, all frequencies are equally taken care of. No area is exposed in an obvious way. Sure, one could debate whether by chance there is a bit of treble boost, or maybe a bit of sub-bass boost, but these are minor deviations from what I could call BALANCE. In terms of tonality, for me, it is a neutral sound, neither warm nor bright. I was under the impression that you can slightly tilt the scales in a commanding direction by changing the source and tips, but I think the basis here is a neutral sound, without much coloration.

Okay, I guess it's time to move on to the individual ranges:

BASS

The bass here is clear and pleasant to listen to. It has texture and a pretty solid portion of it, but at the same time, I'm sure that the lovers of a large portion of bass, the so-called bassheads, will call this set too thin because the bass here is just a complement to the whole - an element of a larger whole. The bass impact alone can shake things up, thanks to the large amount of sub-bass, so the proper dynamics are also maintained. The bass guitar sounds natural and richly detailed and, for example, songs such as Marcus Miller's “Jean Pierre” impress with their bass timbre. His Fender Jazz Bass sounds downright gorgeous and natural.

MIDS

The mids, or registers most often associated with vocals, acoustic guitars, percussion elements, etc., in the Cadenza4 sound excellent, especially the high-mid registers, which surprise and delight with their clarity and transparency. Probably the best description of how it sounds is the fact that when I happened to hear some rustling, crackling, buzzing sounds, I knew immediately that it was the fault of the source, or song, not the headphones. It's obvious enough that you start listening to those crackles as if they were music :) I know, sounds a bit absurd, but listening to Marcheeba, for example, I could easily pick out the added crackles of a vinyl record from the mix.

Various kinds of drums and percussion instruments sound very tasty. They are characterized by the naturalness of sound and are very pleasant for dynamic presentation of sound. What I like most about them is that they sound natural yet transparent and penetrating. The acoustic guitars are precise and accurate. You can hear the feathering on the strings very well, especially with acoustic and classical guitars.

As for the vocals, they also sound great, especially the female vocals. In the case of the male vocals, I sometimes felt like there should be a bit more warmth in the voice. for me, this is the only thing I would change in the cadenza4, i.e. add a bit more weight to the notes. The default sound has a bit of a flat transition from the bass to the midrange, so that low-mid notes can at times show signs of low energy, especially in songs where the demand for this energy is high, such as popular, dynamic, energetic music. However, I think that this should not be considered a flaw, but only a characteristic of this set. As for the positioning of the vocals, I did not feel that they were somehow particularly prominent or withdrawn. I think this is another element that fits perfectly into the concept of balanced sound. I think many will be pleased to hear that the sibilants did not make themselves known in a way that could qualify as a problem, so there is no need to be concerned about this phenomenon.

The only nitpick I can think of is the naturalness of the sound of vocals. Drums, bongos, and other percussion instruments sound very natural, but the vocals, even though they are very clear, they don’t sound as naturally organic as they could (some Penon sets have this characteristic). As I’ve mentioned, this is rather a nitpick than a problem to me.

TREBLE

What I like about the treble is their non-intrusiveness. It happens that when someone says that the sound is very transparent he means transparency built by the exposure of the treble, above the rest of the registers. Such someone hears details because they are boosted, and thinks that they build transparency. In reality, such a boost may create the impression of transparency, but it also deprives the listener of the naturalness of the sound. This is not the transparency I have in mind. The Cadenza 4 presents the treble in a natural, clean, and clear way, but not overly boosted or intrusive. There is no question of irritating sounds here, well, unless that was the artist's intention, in which case the Cadenza 4 will let you enjoy them all. Classical music, film music, and other genres associated with orchestral ensembles of musicians are “like-suited” for this set. Everything sounds very selective and clear. As for sparks in the treble, they sometimes appear and can delight, but this is not an element with which the Cadenza4 somehow exceptionally shines. Nevertheless, in the highest registers, it is clear and very transparent. In jazz pieces, one can listen to the dance of sticks across the cymbals without the slightest effort, and tracks set in trip-hop atmosphere will endow us with juicy crackles as if from vinyl records.

TUNING SUMMARY

I stole the following frequency chart from the squiglink account of Mr. Paul Wasabi, and I would like to take this opportunity to thank him very sincerely for making his measurements publicly available. At the same time, I encourage everyone to read Paul's reviews, which, in addition to their high level of knowledge, are always characterized by an unparalleled level of honesty, full of conclusions and thoughts.

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From the graph, it is evident that from 200 Hz onward, the Cadenza4's frequency graph fits practically perfectly into the curve of a certain esteemed headphone reviewer, a certain Crinacle from In-Ear Fidelity. The bass area shows a pin gain of about 7db, with a corresponding level in the sub-bass area, with no so-called roll-off, which can also be noticed in listening sessions. The roll-off in the treble area starts at about 14kHz, which is practically in the “air” area, so it is correct to say that we rather lose nothing. An increment of a few dB in the 7-14kHz area, in my opinion, is somehow not exceptionally audible during listening and does not negatively affect the overall perception.

TECHNICALITIES

Imaging is very good. Instruments are effectively separated from each other, and sounds are distributed around the head. Listening to the track “Bubbles” by Yosi Horikawa, you can close your eyes and visualize the position of the balls bouncing around your head without the slightest problem. The soundstage is also very good, especially in terms of its width. As for the pitch, the variations are not so noticeable, but nevertheless some are. A good example of this is another track in Yosi Horikawa's album, “Letter,” in which the location of the appearance of the sound of pencil writing also changes their position. This is also a good example of the naturalness of the sound, as the sound of the pencil scratching is faithful to the real one. It is worth mentioning here that although the sound presentation profile itself is analytical, it also remains melodic, making the song sound as a whole. I already mentioned that the passive isolation is above average here and I can confirm it provides a very effective “disconnection” from the outside world, letting you sink into the music.

PAIRING

While testing the headphones, I used a variety of sources, and although the headphones are quite easy to drive (sensitivity 102dB), providing them with more power had a positive effect on scene building and improved dynamics. Most often I used Moondrop Dawn Pro, ONIX ALPHA and Fosi Audio DS2 (CS chips) and with each of them, I had no problems at all.

I must also describe here a certain pairing with the specific tips because it worked very well for me and I highly recommend others to try this combination. I am referring to the latest product from EPZ, the M100 model. Below find few words about the tips themselves:

I must admit that when I saw the material used for the M100 headphones, I was immediately reminded of AZLA XELASTEC - or what I call “dust catchers.” The nickname is not due to their long periods of storage in a drawer (although that is also apt), but rather because everything seems to stick to them. While this stickiness provides a firm grip, it can be quite annoying and for me was unbearable. To my pleasant surprise, the M100s are much better in this regard. I later learned that the M100 tips are made of silicone, while the XELASTEC tips are made of TPU (thermoplastic elastomer). In terms of sound quality, I noticed that to my ears the highs and mids became a bit sharper and cleaner with these tips. There was also more space in the high registers. The bass remained relatively unchanged for me (maybe boosted a bit). Using these amplifiers with the Letshuoer Cadenza4 gave me additional transparency and clarity in the highs and mids. I think the M100s enhanced these registers a bit, making them seem even more refined.

JUST A FEW MORE WORDS ABOUT THE SOUND

I authentically thought that I would be bored, that it would be a flat, unengaging line sound, but fortunately, I was pleasantly surprised. The sound is spacious and rich in detail. Perhaps at times, because of its purity, it can be a bit clinical, and analytical, but it still retains a very pleasing to the ear, melodic character.

PAIRING WITH DIFFERENT GENRES OF MUSIC BASED ON EXAMPLES

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Eric Clapton - Got to Get Better in a Little While (live)

  • Genre: rock, blues, live recordings
  • track recorded during a concert
  • from the first sounds we know that we are in a room, surrounded by instruments (headroom)
  • instruments are very well separated
  • nicely separated, but enriching the listening choruses, sound great in the chorus
  • due to the raw nature of the recorded recording, the percussion cymbals may sound a bit harsh and rough, but they are very clear, which works especially well during the solo
  • the bass guitar warms up the recording, and although there is not much bass, it is audible all the time and it complements the track

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Against All Logic - This Old House is All I Have

  • genre: electronic music
  • some of the crackles and cycles of the drums are so prominent that “they burn”, but in that clean way, that you know that's what the recording was about
  • when the beat comes in, it's very pleasant and quite warm, and the cracking sounds bring you the resemblance of jumping sparks
  • again, the bass line only complements the recording
  • Deep stage, and imaging that arranges the samples in different parts of the head
  • despite the sharp sparks and crackles, these sounds did not bother me as sibilants sometimes do
  • I was never fond of this piece, because I associated these crackles with a bad recording, surprisingly with Cadenza4 I have the confidence that it is not a bad recording, but the intention of the artist

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Snarky Puppy - Bent Nails

  • Genre: speed jazz, funk, instrumental
  • in truth, any track by Snarky Puppy or Cory Wong could be here, because Cadenza seems directly made for this genre of music
  • the sound is detailed and precise, and every instrument is audible in a clear way
  • the biggest advantage is the ability to listen in and at the same time delight in the way the sounds of guitars or drums are articulated

  • Hype Alert!
  • If you like the work of Snarky Puppy or Cory Wong you will fall in love with the way their songs sound on Letshuoer Cadenza 4

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Between The Buried And Me - The Coma Machine

  • genre: metal, heavy rock
  • good imaging - drum transitions are spread all over the back of the head (from left to right)
  • the drums sound natural, the transitions are very clear, the cymbals are also quite clear and, despite being quite prominent, do not pierce the ears
  • vocals good, clean, and pleasant sounding
  • guitars are fast and dynamic, and although not exceptionally selective
  • bass here is also rather a companion only, and unfortunately, in this genre of music, a little too far behind - despite some withdrawal, the bass line is audible throughout the song
  • a little lacking in heavier notes - I have the impression that the musicians would have liked the guitar riffs, especially of the main theme, to have more impact - although it's not bad (just could have been better)

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Ekik Truffaz - Yuri’s Choice

  • just after the first few bars you can be delighted with the percussion: clean, detailed with sparks in the form of sounds of sticks hitting cymbals or other bells - it sounds great
  • the piano itself is presented in a very correct manner
  • the trumpet also sounds natural,
  • the double bass could be a little more pronounced, but it's not too bad, especially when played only with the drums
  • vocal is clear and quite natural
CONCLUSION

I have to confess that at first, I’ve somewhat qualified this set for quiet, delicate genres of music, but as I listened to it over time I can confidently say that the Cadenza 4 is worth trying for other genres as well. It will certainly be loved by fans of jazz, and classical music, but also by fans of highly complex and devilishly fast music in the style of artists such as Snarky Puppy or Cody Wright. While energetic songs from genres such as metal may not exude tremendous dynamics, they can delight the listener with clean and detailed sound. This set handles heavily congested tracks very well, of which metal has quite a lot, and although the “Satan” won't sit here in power, it can be found in detail and transparency.

SUMMARY

Is the Cadenza4 worth the price in my opinion? By all means. This set offers a clean and detailed sound while remaining melodic and pleasant to listen to. I know that the price is not low, but you get high-quality workmanship, professional tuning, and a clean sound that will delight many music lovers.

Another great product from Letshuoer

Below, please find a few photos of the set.

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Pavan Kumar

New Head-Fier
A Balanced cohesive sound
Pros: - Balanced presentation
- Tactile and dynamic Bass response
- Great sub-bass depth
- IEM for the mid-range lovers
- Excellent Instrument timbre that stands out
- Natural tone with no hint of BA timbre
- Depth and clarity in vocals
- Open and detailed treble performance
- Spacious stage and impressively precise imaging
- Excellent resolution and details
- Excellent cohesion among the drivers
- Build quality, fit, and great accessories
- Gorgeous modular cable with 3 interchangeable terminations
Cons: - Bass quantity may not please everyone and some may find it not very authoritative
- The agility of the Bass decay may not be the most natural in certain tracks
- The treble could use a tad more airy extension.

Introduction

Hello everyone!! I have the Letshuoer Cadenza 4 here, also called the “True Virtuoso”, the brand’s latest multi-driver hybrid configuration IEM. I covered a couple of Letshuoer IEM reviews in the recent past and I have been impressed with each one of them. Letshuoer has been on a winning streak here with each of their releases and we will see if Cadenza 4 continues its track record and lives up to the expectations.

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Configuration

Letshuoer Cadenza 4 is configured with a single DD and 3 BA hybrid driver combination. Single DD is a 10mm dual-chambered Beryllium coated DD responsible for the Bass. One Sonion BA for the mid-frequency and 2 Knowles BA for the high frequency through a 4-way electronic crossover. Letshuoer has yet again collaborated with HeyGears for the custom 3D-printed chassis. The faceplate is CNC machined aluminum alloy with a matte finish that provides a textured feel to the touch.

Cable and the tips

The stock cable provided is of high quality and is the best I have come across from the Letshuoer branded IEMs I have reviewed. It is a 392-strand high-purity silver-plated monocrystalline copper cable. Comes with 3 right-angled interchangeable plugs. The ear hooks are of great improvement personally to me compared to the other Letshuoer IEMs I have reviewed including the Letshuoer S15. The ear tips come in 2 variants of silicon – Vocal and balanced. Vocal ear tips appear a little flimsy and did not give me a proper seal. However, the balanced ear tips are good and give me a tight seal. I only did a little tip-rolling here as I started to like the sound output from the balanced tips.

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Carry Case

The carry case provided is similar to the S15 case which is a round resin-coated box – The build is good and decent enough to fit the IEM, cable, and tips. The interchangeable plugs are uniform across the Letshuoer S15 and Letshuoer Cadenza 4 which is again a great comfort and can be interchanged in cases of loss of one plug. And having interchangeable termination plugs is a blessing in disguise.

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Finally…

At the time of this writing, I had this IEM run for more than 200 to 250 hours including some hours of burn-in. The IEM sounds close to neutral with a decent bass boost and the emphasis is on the mid-range with a balanced presentation across the board. Finally, I thank Betty from Letshuoer for arranging this review sample. I greatly appreciate her gesture. So without further ado, here we go to the best of my intentions and abilities:


Specifications

  • 10mm dual-chambered beryllium-coated DD
  • 1 Sonion and 2 Knowles BA
  • Custom 3D printed resin chassis by HeyGear
  • CNC machined Aluminum Alloy matte finish faceplate
  • 50 Nanometer 3D printed Acoustic Tubes
  • 4-way electronic crossover
  • 392-strands silver-plated monocrystalline copper cable
  • 3 Right-angled swappable connectors
  • Impedance – 15 Ohms
  • Sensitivity – 102dB
  • Frequency Response – 20Hz to 40kHz

Disclaimer

  • The review is based on extensive and critical listening and was not influenced by any written or video review.
  • The review is subject to unit variance and my personal listening preferences.
  • The review is subject to the gears I used for testing – DAC/ DAP/ Tips/ quality of the track
  • Last but not least, I have no affiliation with the supplier of the IEM.

Gears/ Audio used for testing

  • S24 Ultra
  • Cayin RU7
  • Aful Snowy Night
  • Tempotec V6
  • Tempotec V6 + Topping NX7
  • Spotify Premium
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Driveability/ Scalability

I used Letshuoer Cadenza 4 with 2 sources most of my time – Cayin RU7 and Tempotec V6 interchangeably and Tempotec V6 + Topping NX7 for comparisons. The IEM is easier to drive and does not require much power to shine. However, it scales well with power and takes the increase in volume like a champ without undue shout or aggressiveness. On my NX7, I have to go up to 50% as I use for S15 for decent volume levels on medium gain. At the same time, IEM shines very well on decent volume levels on my DAP and Dongle. I enjoyed listening to this IEM with all the pairings as aforementioned but the Cayin RU7 comes out on the top and imparted a great musical listen.

The Sound Impressions

Bass

Sub-bass

Sub-bass has an excellent depth with a decent rumble and the quantity is on the subtle side. More tactile in its execution and decay due to the speed of the driver. As a result, although sub-bass digs pretty deep, in certain use cases, it may leave you wanting more quantity. You don’t get the feeling of a lot of air in the sub-bass region that usually comes with the quantity. But the sub-bass has an airy extension, nevertheless. I don’t see any issue here as the tuning intentions were pretty clear. Overall, it is an impactful sub-bass that is tactile, analytical, and textured but may not please a basshead. For those preferring neutral uncolored tuning, this is a perfect bass tuning with sub-bass over mid-bass ensuring the music does not sound boring in the first place.

Mid-bass

The mid-bass quantity is subtle at best prioritizing quality here. The tone and texture are excellent within that confinement – You can easily decipher the tone/pitch from various instruments which are very clear. A tamed mid-bass that does not project itself with a complete potential and is closer to neutral. Again it may give you the feeling of wanting more at times. The execution and decay again are on the faster side and don’t linger around a while which can also be a cause for a slight lack of certain naturalness in the way the bass decays giving you that auditory pleasure – It is well done with certain complex tracks keeping it more clean sounding but not ideal for not so busy tracks that requires a slower natural decay with palpable hits.

However, the speed of the driver contributes to excellent dynamics in the bass region and attack/slam are hard-hitting in general. You won’t notice a bleed here that was so carefully tuned not to sound boring with a lean body but with a subtle touch of warmth that is so close to neutral. Overall, mid-bass speed, texture, tone, and dynamics are excellent but left me wanting more quantity in some bassy tracks.

To sum up…

Seriously, this IEM is not for the bass heads as the Bass is more of an enabler than a focal point here and the objective is to not sound boring in the first place and contribute to an overall clean sound. All that is done here is not for nothing and the brilliance in the tuning reveals itself from what’s coming next. However, this extreme audiophile-centric sound may sound boring to some as the Bass isn’t authoritative here. For me, it is quite good for the most part and the credit goes to its tuning.

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Mids

Instrumentals

The lower mids sound very clean with no noticeable bleed from the bass region. It does not appear lean either. The balance between the crispiness and roundedness achieved here is excellent and there is a solid depth to the sound of the instrumentals. The sound appears fuller from the viewpoint of the depth that makes it rounded yet crispy too – just terrific. However, it may appear slightly leaner for some who prefer a slightly warmer sound with a fuller mid-bass. But to me the noteweight is excellent. If leaner, it would have been a boring sound. But I hear quite the opposite here – These sound full arc with excellent timbre and dynamics. A slight lack in the mid-bass is adequately compensated by the forward midrange here.

The tonality appears natural to me irrespective of BA drivers being part of the configuration. The timbre from various instruments appears natural, lively, and musical with great depth and clarity. The transients appear very fast and seamless together with excellent stage, layering, and imaging, contributing to an overall pleasurable listen. The result is a very clean and clear mid-range with excellent resolution and details. The upper mid-range is so well controlled and open with upper registers of guitars, Violin, and woodwinds sounding very detailed but not fatiguing and harsh. However, there are occasions of aggressiveness and sharpness but are manageable and quite rare. Overall, I’m in awe at times listening to how detailed and dynamic the instrumental tracks sound on Letshuoer Cadenza 4. The accuracy of the timbre here is the icing on the cake be it the Electronic, Jazz, and Acoustic genres.

Vocals

Like how the mid instrumentals are given so much prominence in the mix, vocals are given good prominence too. They are not very forward on the face nor laid back/ recessed. It sounds very appropriate and is rightly balanced with the instrumentals in the track. The separation of vocals from the rest of the mix was very well done.

Male Vocals

There is a tad hint of warmth to the male vocals and do not sound dry or recessed. The lower mids are well done in the way clarity and micro nuances are extracted here while not being too forward either. Overall, the clarity and texture is great with the male vocals.

Female Vocals

Female vocals are rightly placed with the right energy depending on the track and sound more balanced than overly prominent in the mix. I didn’t notice any hint of shrill or shouting from the vocals even from the upper pitches of certain energetic spicy tracks. All this is achieved not at the expense of openness and detail, which is excellent.

Overall, I dig the vocal performance here. They sound balanced and in line with the rest of the instrumentation in the mix and are not overly prominent. Separation is done well ensuring the needed clarity and fine details.

Overall, the mid-range is all in its full glory here – Truly fantastic.

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Treble

The treble is detailed and open sounding with a decent extension and the right energy. No sibilance was noticed and not fatiguing either. When I compare them against the energetic extended treble of the S12, I am not missing much, to be honest. Cadenza 4 sounds open, even more detailed with good resolution but with a right non-fatiguing energy and decent sparkle/ shimmer.

However, the airiness is better with the S12 and there is adequate spaciousness between the notes with the S12 when compared with the Cadenza 4. The cymbal strikes and decay sound right with more air around them on S12, however, they sound less airy on the Cadenza 4 but not overly smoothened, blunt, or suppressed. But a little congested to be exact in more busier tracks. The treble is still open and detailed which satisfies the treble-sensitive listeners with a decent extension and good clarity in the treble region. Overall, I wish the airiness could have been a little better especially in the complex tracks when a lot is going on around where the legendary S12 shows its true prowess.

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Technicalities

The soundstage has an adequately wide width with great height and depth that is molded according to the venue instead of being widely spacious all the time. It is spacious on all fronts and contributes to an excellent stereo separation. Imaging is excellent with precise note-weight definition and pinpoint accuracy. Resolution and details especially in the mid-range are excellent considering the price point. There are micro details and nuances audible with the extremely pleasing vocals and instrumentals.

Layering and separation are above average and there is slight congestion noticed with treble-heavy tracks and it has to do with the treble presentation of the IEM. The speed of the drivers is excellent resulting in a seamless transient response like that of a planar contributing to its overall musical sound. Overall tonality appears very natural and there is no hint of a BA timbre whereas the timbre reproduction of this IEM can be considered a highlight of this IEM. It is that good.

Overall, brilliant technicalities considering the price point.

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Comparisons

I have two IEMs for comparison – Letshuoer S15 and Gizaudio x Binary Chopin. S15 is a planar magnetic IEM that shares certain similarities with Cadenza 4 in terms of tuning, especially the mid-range emphasis. Although both have different configurations, they are highly musical with excellent natural tone – there are similarities and differences between the two, however. The Chopin has a similar driver configuration and is slightly priced less than the Cadenza 4. The tunings differ here and I had a tough time comparing them both as they were neck-on-neck than I thought they would be. So, without further ado, let’s proceed:

Letshuoer Cadenza 4 (249$) vs Letshuoer S15 (329$)


Fit and build

S15 is a planar magnetic IEM from Letshuoer that employs a 14.8mm third-generation planar driver with a proprietary R-Sonic filtering module.

Both the IEMs are HeyGear built with resin structures and different shapes. Cadenza 4 has a more regular and generic fit, but the S15 has an odd fit. Trying to find a suitable cable other than the stock cable to pair with S15 can be a challenge. However, the S15 fits perfectly with stock cable with a rather aggressive ear-hook design. When fitted properly, the seal is great with S15. Cadenza 4 naturally fits properly like regular IEMs and the seal is excellent in general. Both the cables appear to be of the same build quality but the Cadenza 4 cable stands out in comparison. Carry cases are the same between the two. The balanced tips of both the IEMs are good.

Driveability

S15 is slightly difficult to drive being a planar but it rightly falls under the 3rd generation Planar technology being more power efficient than its predecessors. But still, I don’t prefer listening to S15 without NX7 in the picture. In comparison, Cadenza 4 is much easier to drive and scales well when amped.

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Sound

Sub-bass

Cadenza 4 has slightly better depth present in the sub-bass region. Quantity is better on the S15. Rumble kind of evens out on both due to the above aforementioned, but I am slightly inclined towards Cadenza 4 due to more depth. I think the DD plays a role here contributing to a certain naturalness in the decay but the decay is faster on both. Both have an airy extension. Texture-wise, I don’t see a big difference between the two but again, due to the less quantity and added depth, I lean slightly towards the Cadenza 4 here for texture. For sub-bass, although the difference is very subtle, I would go with Cadenza 4. S15 does not lack sub-bass to be clear. But Cadenza 4 is better perceived with a noticeably better depth.

Mid-bass

Mid-bass quantity is better and appears fuller with the S15. Quality is similar between the two. The hard-hitting punch and slam appear at the same level on both the IEMs. The dynamics in the bass region are better on both the IEMs. Both are fast and agile, and dynamics showcase well on both IEMs. The Cadenza 4 is more clean and sounds more close to neutral due to the less mid-bass quantity. S15 sounds more fuller, and warmer in comparison. I prefer the S15 here due to the fuller bass profile and more musical and fun-sounding, especially in some bassy tracks.

Instrumentation

The tone is excellent on both the sets. One is a planar and the other includes BA drivers in the configuration – They both sound very natural to my ears. I slightly lean towards the more musical tone of the S15.

When it comes to resolution and details in the midrange, I would go with the Letshuoer Cadenza 4 over S15. I perceive better micro details on Cadenza 4 due to the overall clean sound not at the expense of the leaner note weight resulting in an excellent timbre across the board. S15 sounds more fuller in comparison and as a result, clouds the details a little – The difference is noticeable in comparison than otherwise. Both are great in their own way, nonetheless. Some may prefer the clean sound of Cadenza 4 and others may prefer the more musical sound of S15 with a little less detail. Cadenza 4 is highly musical too because the note weight is very well balanced. I prefer the instrumentation on the Cadenza 4 for that balance and the high-class timbre it comes with.

Both sound with the right energy in the upper mids. Upper registers of woodwinds, violins, and Acoustic guitar sound a little more energetic and sharp on the Cadenza 4 but polite. Both don’t cross the thin line from sounding harsh or shrill here and stay controlled. But the Cadenza 4 is comparatively more energetic. S15 is a little smoother in comparison. Overall, I’m in awe of the timbre reproduction and accuracy of the Cadenza 4. So, I slightly prefer the Cadenza 4 over the S15 for more critical listening. However, I consider S15 more musical and smooth sounding here.

Male Vocals

Both the IEMs have greater emphasis on the mid-range and vocals in particular. Male vocals have more warmth from mid-bass and sound a little more meaty on the S15. The clarity with subtle nuances goes to Cadenza 4. In rare instances, there is sharpness in vocals on both. I don’t say sibilant, the way the track was mastered. A little more prominent on Cadenza 4 but nothing to worry about.

So both are neck-on-neck here and are far from boring. The differences I mentioned here are subtle at best. I prefer both for male vocals.

Female Vocals

Female vocals have the right energy on both, a little more on Cadenza 4. S15 sounds a little laid-back in comparison. Cadenza 4 sounds a little forward with more clarity and energy. Energetic tracks sound great on both. Those who prefer slightly less energetic and relaxed female vocals will be more satisfied with the S15.

I slightly prefer Cadenza 4 over S15 because of the added energy and clarity which isn’t overly done and is right considering my tastes. S15 is excellent too and I prefer them for a more relaxed listening that is detailed as well. Both are not sibilant to me but a little sharp on Cadenza 4 at times and sound a little edgy but controlled. Very rare to be honest.

Overall, I enjoy vocal performance on both. One does not undermine the other and I respect both for what they offer here.

Treble

The treble is open-sounding, detailed, and smooth on both. Does not sound subdued or dampened. More airy performance on the S15 and is a tad smoother as well. Clarity is a tad better on the Cadenza 4 thanks to the driver configuration. Both are tuned matured here with a little more airy extension on the S15. Both are well done here. I prefer the Cadenza 4 for the clarity, and the S15 for its smooth airy performance.

Overall, I prefer S15 a little better here considering my tastes with airy treble notes whereas Cadenza 4 can sound a little congested in comparison, especially in busier treble tracks.

Technicalities

Stage width is a little wider on Cadenza 4. Height and depth are great on both. Resolution and details are slightly better with Cadenza 4, thanks to the multi-driver configuration again. Imaging is a little more precise on Cadenza due to the more clean and precise note weight definition including the stereo separation but both do a great job here. Layering/ separation is slightly better on the S15, noticeable in busier tracks. The dynamics are excellent on both sets. Both are agile, and seamless in the transient response.

Overall, technicalities are neck-on-neck here and excellent on both. I slightly lean towards Cadenza 4.

Comparison Conclusion

S15 and Cadenza 4 are highly musical in their way. Cadenza 4 has a better sub-bass extension. S15 sounds fuller in mid-bass and lower-mids. Bass is more authoritative on S15. Cadenza 4 has a very balanced precise presentation in the lower mids. Mid Instrumentation sounds more clean and detailed on the Cadenza 4 with excellent timbre across the board. S15 has prominence in mids with its smooth, lush vocals and instrumentation for more relaxed listening. Cadenza 4 for more critical listening.

Treble is slightly better on S15 due to the airy spacious notes, and smoothness, and Cadenza 4 has more clarity and energy in the treble notes although sounds a little congested in busier tracks. Both are open-sounding, nonetheless. Technicalities are neck-on-neck between the two. Cadenza 4 sounds a little energetic and sharp at times in comparison. S15 is more of a relaxed listen. I highly prefer both of them for what they offer. Sound-wise, no real winner here to be honest. Considering the price points, Cadenza 4 has more return on the money here.



Letshuoer Cadenza 4 (249$) vs Gizaudio x Binary Chopin (199$)


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Fit and build

Chopin is a collaboration between the YouTube reviewer/ influencer Mr. Timmy Vangtan a.k.a Gizaudio (A YouTube channel popular among the IEM community) and Binary Acoustics, a Chinese IEM brand operating since 2017.

The fit of Chopin was an issue for me owing to their odd shape until I replaced the stock tips with Zeo’s render tips. I should say that the ear tips have held the IEM in my ear rather than providing just the seal and comfort. The build quality is excellent though. The cable that comes with the Chopin is of inferior quality compared to the modular cable of Cadenza 4. Cadenza 4 stock cable is leaps ahead if one goes by the looks. But still, the modular option is great with Cadenza 4. Both the fit and build quality of Cadenza 4 are excellent.

Driveability

In comparison, Chopin is very easy to drive. It gets louder easily compared to Cadenza 4. I find the Cadenza 4 more scalable here and can be experimented with a little higher volume range.

Sound

Sub-bass

More quantity but slightly less extension with Chopin in comparison. Rumble is more with the Chopin as the quantity compensates for the slight lack of extension here. The texture is slightly better with Cadenza 4. More tactile feel with Cadenza 4. Overall, both are impactful in their way.

Mid-bass

Mid-Bass sounds more fuller and authoritative on the Chopin while the Cadenza 4 leaves with the feeling of wanting for more in some bassy tracks. Both are hard hitting but the Chopin pushes more air here. Cadenza 4 sounds more neutral in comparison. The tone is slightly better with Cadenza 4.

Overall, Bass lovers will be more pleased with Chopin whereas people who prefer neutral uncolored sound with decent bass to get things moving should go with Cadenza 4.

Instrumentation

Tonality stands out on the Cadenza 4 due to its balanced presentation throughout and not impacting the tonal balance. Chopin sounds brighter in comparison, especially the upper registers and tonal balance is slightly affected because of that. However, both sound natural to me. The resolution is slightly better with the Cadenza 4. I perceive better details with Cadenza 4 as it is more clean sounding and dynamics are better too in comparison.

Note weight appears to be the same but slightly better rounded and full with Cadenza 4 yet crispy. The timbre accuracy is a standout feature of the Cadenza 4 and is spot-on in comparison. Chopin does a great job and comes close but not of the same level as Cadenza 4. Neither of them is sibilant nor harsh sounding but the Chopin is a tad brighter, energetic, and aggressive sounding in comparison. Cadenza 4 gets aggressive and sharp too but on rare occasions. In general, Cadenza 4 is less aggressive compared to Chopin.

Male vocals

Slightly better nuanced, resolving, and depth on the Cadenza 4 compared to Chopin. Chopin shows more energy and is a little forward in comparison. Other than that both are well-placed placed, does not sound dry or recessed. I slightly prefer Cadenza 4 over Chopin.

Female vocals

Female vocals sound with a little better energy, open, and maintain better clarity on Chopin. Less energetic on Cadenza 4 in comparison. But in certain tracks, the energy can get too much and convert to borderline shout on Chopin. Chopin has a more forward presentation here. In some spicy vocal tracks like Titanium (Sia), Cadenza 4 exhibits controlled energy and isn’t shouty or harsh in comparison. So I’m kind of even here but still slightly prefer the openness of Chopin here.

Treble

Treble has an airy presentation on the Chopin that is slightly lacking on the Cadenza 4. Comparatively more energetic on Chopin but not harsh. Both sound open and detailed with decent extension. Chopin has a better airy extension. More smooth sounding on the Cadenza 4 but isn’t subdued. Resolution and clarity are slightly better on the Cadenza. I love treble performance on both but I am more inclined towards the airy and energetic presentation of the Chopin considering my tastes. Both do a great job here.

Technicalities

Overall resolution and details are slightly better with Cadenza 4. I hear more micro details/ nuances, especially in the midrange of Cadenza 4. Dynamic presentation is better on the Cadenza 4 as well. The soundstage is spaciously wide on the Cadenza 4 as the venue demands. Chopin is adequately wide too but Cadenza appears a little wider in comparison. Height and depth are great on both. Layering and separation appear to be the same on both. Imaging including the stereo separation is slightly better on the Cadenza 4. Chopin does a great job too but Cadenza 4 appears more precise and dynamic in both imaging and stereo separation.

Comparison Conclusion

Both are gems at their respective price points. Cadenza 4 is a slightly better IEM than the Chopin especially for its mid-range instrument timbre, resolution, details, and technicalities where the Cadenza 4 stands out. The Chopin still has the upper hand over Cadenza 4 in the mid-bass and overall treble performance. Both cater to different audiences and the credit should be given where it is due. They complement each other for their respective strengths and shortcomings. I prefer both of them at their respective price points. Cadenza 4 is priced slightly above Chopin and is well justified for the stated reasons.


Letshuoer Cadenza 4 Review Closing Thoughts


Letshuoer Cadenza 4 ‘The True Virtuoso’ possesses outstanding musical and technical abilities for the asking price as the name indicates. There’s the catch though – this IEM may not please a bass head or a treble head but everyone in between would surely fall in love with this gem of an IEM, especially those who prefer a neutral uncolored sound. The mid-range is glorified and probably the USP of this IEM with its exceedingly accurate and natural timbre reproduction and fantastic vocals. Listening to instrumentals with a source like Cayin RU7 is pure bliss. The bass and treble are well-done anchoring the balance than being the focal points. Brilliant technicalities are the icing on the cake. Overall, a fantastic and pleasurable listen especially for mid-range enthusiasts.
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kalibri
kalibri
You absolutely nailed the bass description, it's incredible how good the response is given there is not a lot of it. When a kick drum is playing it can be both heard and felt, Letshuoer did an amazing job here I have to admit.
P
Pavan Kumar
@kalibri Thank you so much mate. Agree with you. Letshuoer did a fantastic job with the overall tuning of this IEM.

SherryLion

New Head-Fier
A Very Target Specific Tuned IEM! The LetShuoer Cadenza 4
Pros: 1. Extremely detailed and clear sounding
2. Crisp and sharp treble
3. Forward and open sounding mid range
4. Well-controlled and articulated Bass
5. Great technical specifications
Cons: 1. lacks weight/richness in the lower frequencies

Review Of The LetShuoer Cadenza 4


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Introduction


Recently, the brand LetShuoer has been on a roll with continual releases of IEMs and now a dongle dac. The firm was founded in China in 2016 and has been manufacturing IEMs in every category, whether affordable, mid-range, or premium. Their IEMs, such as the S12, EJ07M, and now the Cadenza 12, which is their flagship IEM, have been popular since its introduction. They just launched Cadenza 12's younger sibling, Cadenza 4, which I was fortunate enough to obtain for review reasons, but before we go any further, I'd want to clarify a few points.

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Disclaimer


*Since this unit tour was organised by the lovely people at Letshouer, I am grateful to them. And as I've said in all of my evaluations, the same is true for this one: all of the concepts I've expressed below are entirely my own, original ideas that haven't been influenced by anyone else. If interested, go to this link.
*I am not associated with the connection, and I receive no financial assistance from anyone.
*For the remainder of the review, I will refer to these IEMs as “Cadenza 4.”
*I am using different Ear-tips for convenience and better versatility.
*Finally, I will only evaluate the Cadenza 4 based on their performance, even though I will explain how it feels and seems physically and aesthetically.

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Specification


The Cadenza 4 has a multi-driver hybrid configuration with three balanced armatures from Knowles(2) and Sonion(1) and one 10mm berryllium dynamic driver. All drivers use 50 um 3D printed acoustic tubes and an electronic four-way crossover to enable target-specific tuning. The shells are composed of skin-friendly plastic, while the faceplate is constructed of CNC machined aluminum alloy. The shells are ergonomically curved and have a matte white finish, which feels quite safe and comfortable in my ears while still providing a fresh and crisp appearance. This wasn't an issue either because I was able to acquire a suitable fit with smaller eartips. The cable offered is a 392-strand high purity silver plated monocrystalline copper cable that feels amazing and performs well, with two pin connections on one end and an L-shaped modular termination plug on the other. Aside from the cable and IEMs, the kit contains six pairs of eartips in two distinct kinds and three different sizes, three interchangeable plugs (2.5mm, 3.5mm, and 4.4mm), and a sleek and matte-finished carrying bag. According to the technical standards, the impedance is 15 ohms and the sensitivity is 102 decibel. The frequency response ranges from 20Hz to 40kHz.

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Sound


The Cadenza 4 produces a brightish neutral tone with a very revealing and expressive presentation. In terms of technical specifications, I believe these are among the best-sounding options in this price range. When compared to my ideal objective, the IEF Neutral, I believe they are the clearest and most on-point graphs I've ever seen. The response appears light and lean in compared to the likes of the Quintet, Falcon Pro, Da Vinci, and so on, but being one of the finest resolving IEMs, many people will like it for its expressive and vibrant presentation. Although I've always thought DUNU IEMs had a forward and lively sound, these outperform in terms of overall balance, with superb extension on both sides. Even while not every component of the presentation is crisp and well-received, I believe it lacks warmth and authority in terms of note weight and thickness. Let's take a closer look at the sound.

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Treble


The elongation of the notes in the treble is absolutely captivating, and the entire area has enough excitement and air to bring out the aftermath sound completely and clearly. Despite the fact that the treble might become lean and metallic in character, the vibrant exposure and details compensate. The upper treble sounds airier and crisper in presentation, particularly in terms of how notes are pushed in this region; the vocals and instruments have great details and clarity at the expense of sounding metallic and sharp, which are frequently brought up in the mix; however, the clarity is one of the best I've heard in this price range while producing a bright response. Tracks like Elton John's I'm Still Standing have a highly expressive and distinctive presentation of the note over the track, and the way the Cadenza manages the air and extension adds a lot of resolve, particularly to the vocals, which become complete and full sounding. In the lower treble, the singers and instruments generate a more lively presentation, and I feel the notes have a bit more weight, which keeps sibilance and shoutiness at bay. The vocals take a more prominent approach in the mix, while the instrumentation compliment them. For example, ToTo's track Africa sounds really delightful, with all of the instruments sounding intriguing and engaging. The instruments have a very clear and nice response, allowing the vocals to deliver a vivid presentation. To be more specific, the overall location of the singers and instruments results in one of the track's cleanest and most emotive presentations. Consequently, the overall presentation of the treble area is crisp, detailed, and sharp-sounding.

Mid Range


When it comes to the mid-range, the response stands out in the mix, bringing out the full vocal and instrument approach while keeping the note purity. The response lacks note weight, which may result in a less full-bodied sound, but with such a roomy and unique presentation, I doubt anybody would have any issues. The upper mid-range has the same energy as the lower treble with better note weight, and to be honest, it rarely makes a difference, but better energy and prominence in the mix allow the vocals to become more consistent with the instruments, as tonally the vocals sound open and captivating while the instruments bring a more fuller presentation of the notes, allowing for a more distinctive presentation. The lower mid-range sounds clean and hazy in the approach of the notes; I believe the purity of the notes does not allow for that depth, and the notes lack complete composure of weight and thickness. While listening to tracks such as The Reason by Hoobastank, the overall response is quite clear and resolved, making it sound distinctive, but the guitar notes, particularly in the lower frequencies, sound weightless and dry; despite the fact that the response is precise, the overall dynamics appear missing. At the same time, the notes have better contrast and resolution when listening to tracks like URU's Kamihitoe, as her vocals bring a very vibrant and captivating presentation; I truly prefer her crisp notes and delicacy in expressing them, which Cadenza 4 brings. As a result, the mid-range area sounds wide, clear, and unique.

Bass


When it comes to bass response, I believe it has a strong impact and presence but lacks depth and character. The bottom bass is beautifully defined and textured, but it falls short in terms of generating exciting bass, despite the fact that it does its job well. The emphasis is on the sub-bass, which packs appropriate punches and rumbling, but it lacks in the mid-bass; personally, I have no qualms with it, but others believe it is either perfectly tuned or missing in dynamics and engagement. The mid-bass features significant crashes and thumps, but they also sound weightless and artificial. While listening to Miliyah's tracks ISOxo how2fly and Kono Yumega Samerumade, I noticed that the bass lacked punch and force in comparison to its rivals. The bass has precision and speed, but the weight and dynamism were lacking. Overall, the bass area sounds detailed and textured but lacks weight and solidity.

Technical Performance


When it comes to technical elements, the Cadenza 4 outperforms every other IEM in this price range, including the Quintet and Falcon Pro, as well as IEMs priced more. I believe the Cadenza 4 has more targeted and detail-oriented tuning. Let's go into the specifics.

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Soundstage, Sound Imaging & Separation


The Cadenza 4's soundstage is fairly wide and spacious, allowing for a holographic presentation and accurate note positioning. The imaging is sharp and clear, and the precision of the notes can be felt due to the distinctive nature of the notes, which have a great separation. The faraway aspect of the sounds makes it easier for me to determine where each given sound is originating from.

Speed & Resolution


I feel they are the most detailed-sounding IEMs I've heard in this price range, bringing outstanding resolution and both macro and micro details to the surface with ease. The assault and decay of the notes are superbly fast-paced, resulting in a very clean-sounding presentation.

Sound Impressions


Sources


Sony WM1A - While listening to Cadenza 4 through WM1A, the response seemed more wholesome and full-bodied, making it well-rounded and enjoyable to listen to. The dynamics increased in comparison, with the bass sounding huge and powerful in the sub-bass while losing punch and warmth in the mid-bass. The treble seemed tamed in terms of details and forwardness, allowing the region to sound smooth and silky; the same can be said for the midrange region, but the voices and instruments sounded more weighted and bodied, resulting in a more unified and genuine sound. Tracks like Milet's Anytime Anywhere sounded larger and richer because the notes had more to offer, particularly the voices, which seem appealing and composite.

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FiiO M15S - While listening to Cadenza 4 via M15S, the response sounded more sterile and clean with a drop in note weight, but it did not introduce or modify the sound of tuning to become sibilant or shouty. The notes got more illuminating as their differentiation improved. Personally, I noticed that it removed whatever musicality I had from the sound and made it seem dull. The neutral element of the M15S, along with the Cadenza 4's brightish neutral tuning, results in one of the most detailed and clear-sounding responses I've ever heard, without compromising the note's purity. I mean, tunes like Kokoronashi by Majiko were incredibly clear and expressive in a way that made the vocals and instruments seem distinctive and more resolving, but they removed any unified and musical approach to instruments and vocals that used to feel like a recorded live performance.

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Tracks


Millet - Anytime Anywhere
Anri - I can’t stop the loneliness
Kohana Lam - A Few Sentimental
Kohana Lam - Loving Me, Loving You
Uru - Kimino Shiawasewo
Uru - Kamihitoe
Kujira Yumemi - Kenka
Majiko - Kokoronashi
Anly - Sukinishinayo
Kohama Lam - A Few Sentimental
Kohana Lam - Loving Me, Loving You
Miliyah - Kono Yumega Samerumade
Rokudenashi - The Flame Of Love
Yu-Peng Chen - A New Day with Hope
Yu-Peng Chen - Another Hopeful Tomorrow
Yu-Peng Chen - For Riddles, for Wonders
Valentino Khan - Satellite
Kai Wachi - Happier By Now
Jawns - Erotica
ISOxo - how2fly
Kai Wachi - Happier By Now
Weeknd - Popular
YUNGBLUD - When We Die(Can We Still Get High)
Bring to Horizon - Kool-Aid
Middle Kids - Bend
FLETCHER - Leads Me On
Loathe - Aggressive Evolution
The Weeknd - Save Your Tears
Sigrid - Burning Bridges
AURORA - Black Water Lilies
AURORA - Runaway
X Ambassadors - Renegades
Lupe Fiasco - Words I Never Said
Macklemore & Ryan Lewis - Can’t Hold Us
Goyte - Somebody That I Used To Know
Jay-Z - Run This Town
Lady Gaga - Poker Face
Lady Gaga - Just Dance
Ladytron - Ghost
Travis - Love Will Come Through
LINKIN PARK - Somewhere I Belong
DJ Shadow - Six Days (Remix)
Hoobastank - The Reason
Ricky Martin - I Don’t Care
Tool - 7empest
Tool - Vicarious
A Flock Of Seagulls - Space Age Love Song
Zack Hemsey - Vengeance
Elton John - I’m Still Standing
The Moody Blues - Nights In White Satin
Micheal Sembello - Maniac
Guns N’ Roses - Sweet Child O’ Mine
A.R. Rahman - Kun Faya Kun


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Conclusion


To summarize this review, I believe that anyone who like an IEM particularly tuned for the IEF target with a 10-12dB sub bass increase would LOVE these IEMs, as they provide a vivid, sharp, and energetic response while being lean and neutral. Though I'd want to point out that this is not for individuals who prefer fun and warm sounding IEMs, they are welcome to try since the details and clarity will blow your mind for the $250USD price they are being sold for, thus I'll absolutely suggest them.

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MotherX1
MotherX1
nice review man.

marcelzxc

New Head-Fier
LETSHUOER CADENZA 4 REVIEW
Pros: – Unboxing experience
– Aesthetically beautiful (subjective)
– Price/performance
– Neutral/natural sound
– Coherent tuning
– Good for studio monitoring
– Easy to push
– Excellent technicalities
– Great soundstage
– Great imaging
– Great fit and comfort
– Great eartips
– Great cable (modular)
– Great carrying case
Cons: – May lack bass for some (subjective)
– Bass not so fast
– Carrying case takes time to unscrew
– Sticker tore the envelope

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>>I am brazilian and I speak portuguese, so forgive my english, I’ll use translation tools to help<<


INTRO:

Finally, the long-awaited moment has arrived! I was really eager to test a hybrid earphone from LETSHUOER. I’m a big fan of their products, they’re one of the few companies that focus not only on sound quality but also on overall product excellence, including design, packaging, accessories, and more. While I’ve previously listened to LETSHUOER’s planar and dynamic driver IEMs, I’ve always been partial to hybrid earphones. For me, the combination of drivers provides the best balance between technical precision and musical enjoyment. So, here’s my chance to dive into the LETSHUOER Cadenza 4.

Price: $249 USD
Colors: Silver/White

Letshuoer Reviews: S12, DT02, D13 (portuguese), DZ4, S15 (english)



LETSHUOER LINKS:

https://amzn.to/45qrJ35

https://s.click.aliexpress.com/e/_DdW0WDd



SPECIFICATIONS:

Hybrid: 1DD + 3BAs
  • (1) 10mm dual-chambered beryllium coated DD per side
  • (3) 1 Sonion BA + 2 Knowles BA per side
– Frequency range: 20Hz – 40kHz
– Sensitivity: 102dB
– Impedance: 15Ω
– Termination Plug: Modular (2.5mm, 3.5mm, 4.4mm)(L design)
– Connectors: 2pin 0.78mm
– Cable size: 1.2m (detachable)
– Cable: 392-strands HP silver-plated monocrystalline copper
– Shell: HeyGears 3D Resin + aluminum alloy (faceplate)
– Earphone weight: 5.4g (one side)(without eartips)
– Cable weight: 30g (with 4.4mm plug)
– Cable weight: 29.2g (with 3.5mm plug)
– Cable weight: 26.3g (without plug)
– Total weight (packaging, iems, etc): 452.4g
– Packaging size: 10.5cm [H] x 15.5cm [W] x 8cm [D]



UNBOXING:







PHYSICAL ASPECTS:

Construction: Here we can start by saying that whoever had the LETSHUOER DZ4 will have an idea of the construction of the Cadenza 4. And whoever had the LETSHUOER S15 will have an idea of the complement that comes with the product, that is, the modular cable, the unboxing experience, etc. The fusion was perfect, the shell of the DZ4 is very good, then the shell of the Cadenza 4 is also very good (they are very similar). The shell was made by the 3D printing company called HeyGears, all the shells that this company makes are of excellent quality. The faceplate of the Cadenza 4 is made of metal (aluminum), as on the DZ4 and also on the S15, only the design changes.

The S15 unboxing experience is that of a premium product, and here at Cadenza 4 they repeated the same concept, changing only small details, such as the color of the packaging, cable design, etc., but the success is repeated. For me, it is without a doubt one of the best unboxings I have ever received. But to not say that it was all 10 score, I think the company made a mistake putting a sticker on the envelope containing the earphone’s leaflets (manual, warranty card, etc.). What happened was that the sticker became very glued and there was no other way than to tear the envelope to access the contents. A small mistake that can be easily fixed by them, thus preventing the packaging from being damaged during unboxing. But other than that, I have nothing to criticize, a very well-made product.
Even more about the construction of the Cadenza 4, according to the company, we have an IEM with 3 acoustic tubes to pass sound, and an electronic four-way crossovers to separate frequencies between the drivers. The acoustic tubes were made using a 3D printer and are 50μm long.

Eartips: Look, we have a pleasant surprise here. Follow along. First, to say that the eartip kit was very good, it came with two types of silicone eartips, in sizes S/M/L. The types are: Vocal (transparent) and Balanced (gray). These “Vocal” are more focused on the wide bore style, and I confess that they aren’t really my beach, but I could see that they are great quality eartips, better than those I usually see on other IEMs. Well, the company also added one of my favorite eartips, the Balanced ones (gray), they are simply very good. I remember after reviewing the LETSHUOER S12, I asked the company to sell them separately… unfortunately they thought it was not viable to launch this product. Now, they’re back here at Cadenza 4, so just happiness! They are really good, very soft, and have a great form, very universal. There’s no mistake, I carried out the review using the Balaced in size M. I continue to insist that the company should sell these eartips separately.

Cable: Here we also have a very positive point about the product, the Cadenza 4 cable is very good. Starting with the modular system with the 3 main connections: 2.5mm balanced, 3.5mm Single Ended, and 4.4mm balanced. The system used is very good, easy to change plugs, everything is very simple and hassle-free. Until today, both the S15 modular cable and the Cadenza 4 modular cable have been the best modular cables I’ve ever tested. Regarding the material of the cable itself, the plastic coating on the cable is perhaps the only point to be criticized, although it isn’t a bad thing, it’s just that it gives a feeling of “transparent plastic sensation” (difficult to even explain). But other than that, I only saw positive points: it’s a light cable, there’s no microphonics, it doesn’t get tangled, it doesn’t take up memory, and it’s easy to roll up for storage. The earhooks are great, smooth and with good curvature. The chin slider works very well. I even liked the Cadenza 4’s cable more than the S15’s cable… the Cadenza 4’s is a little lighter and more malleable, and aesthetically speaking, I like silver-plated cables.

Fit and comfort: Anyone who had the DZ4 and enjoyed the IEM will certainly also love the Cadenza 4, the shell is practically the same. So, I had no surprises, excellent fit and comfort (in my ears). The shell is very anatomical, it has a more vertical fit, while the S15 has a more horizontal/diagonal fit. 100% stable IEM in my ears. Impeccable comfort, I had no pressure points. I consider it to be a great IEM for spending long hours listening to sound. The Cadenza 4 is an IEM that I consider to be very light, just 5.4g. The insertion I found to be average to deep (partly because of the eartips), and the isolation I found to be very good. I had no sensation of internal pressure in the ear canal… of course, this is very subjective, but I think that the Cadenza 4 isn’t an IEM capable of generating this situation, precisely because it isn’t a large earphone.

Accessories: In addition to the modular cable and eartips, the Cadenza 4 comes with a rigid carrying case with screw closure. It’s also part of the positive points of the product. Anyone who follows the reviews here knows that this is exactly one of the carrying case styles that I recommend. The only detail that I had already noticed since the DZ4, then the S15, and now the Cadenza 4, is that it takes a long time to screw the case to open the lid… I think the company could have improved this, to the lid releases faster, and closes as well. I even had to skip this part in the unboxing video, otherwise I would have spent a lot of time just unscrewing the case lid.


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SOUND ASPECTS:

I understood the sound of the LETSHUOER Cadenza 4 as Neutral with a slight Bassboost (emphasis on the bass region). For me, the IEM has a very correct sound, and I think that this is the type of sound that audiophiles are looking for, something without excess and faithful to the recordings. For my taste, I like IEMs that are a little more energetic, and with just a little more bass than the Cadenza 4, but in no way did I find the IEM boring or without bass, that’s not it, the proposal of the earphone that it really is a more neutral, natural. The Cadenza 4 is a very coherent earphone that you can listen to for hours and hours without getting tired, because the sound is very comfortable. It’s an IEM that I think is a mix between the musical and the technical. >Note the details of the chosen output in the amplification paragraph.<

The LETSHUOER Cadenza 4, along with the LETSHUOER D13, were the IEMs that I liked the most among those I heard from the company… speaking personally, my taste, because the LETHUOER S12 and LETSHUOER S15 for me were very technical IEMs, and in some situations I missed a warmer and more musical sound, something I found with the Cadenza 4 and the D13 (in relation to the aforementioned). Leaving the LETSHUOER family, I think the Cadenza 4 is a great upgrade for those who have the Truthear Hexa and thought it had too much sub-bass, so the Cadenza 4 can correct that boost from the subs and also manage to bring more technicalities.

Bass:

Quantitative: I consider the bass of the Cadenza 4 to be moderate. The IEM has a slight boost in the bass region (sub-bass and mid-bass), which makes it sound – to my ears – like a very coherent earphone, the presentation is always “linear”. You’ll have a bass that doesn’t stand out, it’s not the star of the show, it always follows the recording. But don’t think that they are anemic bass, on the contrary, the boost brought exactly the correction so that the bass wouldn’t be like that. Now, I think that this would not be an IEM for bassheads, in that sense the LETSHUOER D13 itself would be the most correct option. Although, I enjoy more fun bass and I didn’t feel frustrated, I could live with the Cadenza 4 easily. I didn’t feel any roll-off, the extension is good. It’s possible that you can listen to many musical genres with the Cadenza 4, because of course this is something subjective, I just wouldn’t go with EDM and Hip-Hop (my opinion).

Qualitative: The bass is controlled, versatile, linear, has a good texture and brings a little physicality. Don’t think that because it’s a neutral IEM that the bass will be thin, that’s not exactly what I noticed here, they have body, and add a slight touch of warmth to the presentation. The definition is good/ok, and I agree that they aren’t the fastest bass I have ever heard, the company itself has 3 other IEMs that deliver more technical bass, namely the S12, D13, and S15. The impact is audible, but it’s not that strong, but it faithfully reproduces the beat of a bass drum, for example. It’s not boomy bass, it’s not bloated, and it doesn’t invade the midrange. Truly, the Cadenza 4’s bass is a part of a whole, and each part respects the other.

Mids:

Quantitative and qualitative: The mids are very interesting, because they are neither too far back nor too far forward, the measure here was very well implemented, it brings a “naturalness” without losing the technical side (of course, natural is something subjective). The pinna gain sounds very consistent with the real thing, at no point does it go overboard, you always have a good projection in the mid/upper-mid range, without feeling aggressive or harsh. I think the Cadenza 4’s midrange is closer to the Thieaudio Hype 2‘s midrange than the Kiwi Ears Quintet‘s midrange… the Quintet is a little more “soft”/recessed in that midrange region. The Cadenza 4’s midrange has great transparency, definition, clarity and detail. Voices, percussion instruments, and wind instruments have excellent resolution, very realistic timbre.

Voices: As it is a neutral IEM with a slight emphasis on the bass region, the voices on the Cadenza 4 were good for both types, it was a technical tie. Now, you can have good performance for both types of voices – male/low and female/high, however, the IEM cannot be the best for either type… what I mean is, if for example If your library is mostly lower/guttural vocals, the Cadenza 4 may not extract the full potential for this type of voice, and the same happens for voices with higher timbres. It’s different when you pick up an IEM with a lot of bass and listen to a voice with a very low timbre, you feel greater depth and warmth in the presentation. That said, the Cadenza 4 manages to have a good balance on both types of voices.

Treble:

Quantitative: The treble is at the moderate level. It is another region that also brings great coherence with the real side. I looked for something wrong and didn’t find it. It’s easier to talk about an error that the IEM has than when the IEM enters that “natural” zone, because trying to explain the natural is very difficult, it enters in the subjective zone. Because I can listen to an IEM with a little more treble than this one and still find it natural… so when something goes “out of point”, or goes beyond its “natural”, then you will say what you noticed something wrong. I will say that this isn’t the IEM for those looking for a brighter presentation, the Cadenza 4 seeks to be more correct, so you will have extremely linear treble here. I didn’t feel any roll-off, the treble extension is good.

Qualitative: The Cadenza 4’s trebles are neutral, “natural”, correct, linear, versatile, controlled, have no peaks, no coloration. Great definition, great detailing, great airy. The sparkle is very consistent with reality, nothing goes beyond the point, the presentation never sounds crystalline, or too bright. This is an IEM that absolutely doesn’t cause a feeling of hearing fatigue due to the treble, great for people looking for more comfortable IEMs to listen to. And the big positive point is that quantity didn’t affect the technical quality. They aren’t harsh treble, they aren’t strident, they aren’t sharp, and I didn’t feel the presence of sibilance at any time. The timbre of the high-pitched instruments was very good, very faithful to what we hear from the sounds produced in real life.

Soundstage: I found the soundstage sensation to be very good. In fact, the Cadenza 4 is not that deep an earphone, but in terms of width and height it performs very well. The depth of the sound is standard, it neither plays as if it were glued to the eardrum nor does it play as if it were inside a cave (with echo). Comparing the Cadenza 4 with the Kiwi Ears Quintet in terms of spatiality, the Cadenza 4 is a little behind the Quintet, this is because the Quintet has less frontal midrange than the Cadenza 4, so the feeling in the Quintet is as if the instruments were more further away. On the spatiality scale: Quintet > Hype2 > Cadenza 4.

Imaging: I thought the Cadenza 4’s instrumental separation was excellent. If the Quintet performed better on the sound stage, now it is the Cadenza 4’s turn to be better. Between the two, the Cadenza 4 manages to have a slightly better resolution in the sound of the instruments than the Quintet, it was noticed that some sounds had a feeling of greater micro details, which in turn makes the presentation as a whole sound cleaner and more transparent, the positioning of the instruments becomes more precise (remembering that the quality of the recording greatly influences this aspect here). On the separation scale: Hype2 > Cadenza 4 > Quintet.
Flex driver test: I didn’t hear any flex driver sound when inserting the IEM into my ears.

Amplification: I used the FiiO M11S DAP to do this review. The output used was balanced 4.4mm and the DAP in High Gain mode. Volume was 70% of the 120% available through M11S. It was a matter of taste for what the balanced output gave me with the IEM, but I can say that the Cadenza 4 on the 3.5mm output also played easily, I didn’t see the need for dedicated amplification (powerful amps). What happened was that in the balanced output, the sound became more “lively”, dynamic, the sound actually scaled up a bit, opening up the sensation of spatiality, more imaging, and bass with more impact. Now, with the same 3.5mm output and 80%-85% volume, the sound seemed very close to me, so I think that if the person only has equipment with a 3.5mm output, everything will be fine, there will be no need to rush out and buy balanced equipment to play the Cadenza 4, Ok? I tested the IEM on the FiiO KA11 and it played easily. The Cadenza 4 will certainly play on smartphones, iPads, and notebooks. I always recommend that the person at least have a good quality dongle to play the earphones. Currently, I recommend the FiiO KA11 as a good cost-benefit dongle.


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Ceeluh7
Ceeluh7
Nice review. I thoroughly enjoy listening to the Cadenza 4. Certainly a competitive set for its price point.

Ichos

Reviewer at hxosplus
Reference
Pros: + Neutral and reference tuning
+ Great technicalities for the category
+ Natural and realistic timbre without artificiality
+ Perfect for critical listening
+ Not lacking in musicality and enjoyment
+ Smooth treble
+ Wide soundstage
+ Lightweight and comfortable
+ High quality modular cable
+ Well made
+ Good value
Cons: - Not as fun for casual listening
- A bit lean and dry bass
- Dull appearance
- Limited selection of ear-tips
- Plastic cable plugs
The Cadenza 12 is LETSHUOER’s flagship in-ear monitor, an exceptionally well sounding earphone that is one of my favorites and I regularly use it for music listening and as a reviewing reference.

The Cadenza 4 is a scaled down version of their 12 driver flagship, a hybrid earphone with four drivers per side, a 10mm dual-chambered beryllium coated dynamic driver and 3 BA drivers.

The 10mm dual-chambered dynamic driver is beryllium coated, a metal which possesses the characteristics of being light and extremely rigid.

The balanced armature drivers are a combination of Knowles and Sonion for rich mid-frequency details, and ample treble extension.

Furthermore the Cadenza 4 adopts a design with three acoustic tubes that are combined with an electronic four-way crossover. The 50μm 3D printed acoustic tubes ensure accurate, smooth, and consistent sound. The four-way electronic crossover allows for precise control of frequency distribution and significantly reduces phase errors.

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Non Audio stuff

LETSHUOER has collaborated with the renowned HeyGears to create custom-like ear-shells with an ergonomic design that follows the natural shape of the ear. The 3D printed, resin ear-shells have aluminum faceplates with a matte silver finish that adds a touch of elegance and premium feel. The appearance is not that unique, I find the faceplates too contrasted with the white ear-shells and they don't match that well.

The ear-shells are compact and lightweight, they fit well and offer a comfortable and stress free listening experience. Passive attenuation is also good and the only thing worth noting is that the sound tube is a little short so some people might need double or triple flange ear-tips that are not included in the package.

Cable

The Cadenza 4 comes standard with a 392-strands high-purity silver-plated monocrystalline copper cable. It is a detachable cable with the 2-pin interface and modular plugs, three types of right-angled interchangeable plugs are included in the package. This is a lightweight cable that bends easily, it doesn't get tangled and is not microphonic. A high quality stock cable, the only thing worth noting is that the swappable connectors are made from plastic instead of aluminum.

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Accessories

The package includes a plastic, round shaped carrying case with a screw lid, the cable and two sets of silicone ear-tips (vocal and balanced) in three sizes each.

Drivability

The LETSHUOER Cadenza 4 has an 15Ω impedance with 102dB of sensitivity so they are pretty easy to drive from portable sources. But don't be afraid to experiment with better and more powerful gear because they scale very well. A great match is LETSHUOER's new USB DAC dongle, the DT03, but I have also used the FiiO M23 and iBasso DX180.

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Audio stuff

The Cadenza 4 is an exceptionally well tuned set of earphones with a neutral - balanced sound that steers away from Harman and V-shaped target curves. This is a set suitable for audiophile critical listening with a perfectly neutral and tonally accurate bass, present and well defined mid-range, and an extended treble that manages to stay smooth and easy to the ear. The Cadenza 4 follows a monitor like tuning but without compromising musicality and enjoyment, it has a reference but not clinical sound.

The sound is natural and slightly warm, the timbre is very realistic with excellent tonal accuracy throughout the whole frequency range. The Cadenza 4 is especially suitable for listening to classical music, all instruments of the symphony orchestra and voices, from the deep bass to the high sopranos, are reproduced with remarkable accuracy, precise pitch and the most colorful overtones. Excellent is also the four driver's integration, the Cadenza 4 is very cohesive sounding and absent of any balanced armature timbre.

Upper mid-range and treble are just slightly elevated to enhance clarity and definition but they don't come out as bright and fatiguing. The Cadenza 4 resolves quite well for the category and offers competitive detail retrieval. Nothing is really missing on the long run and the sound is not veiled at all but this is an earphone that aims for timbral accuracy rather than magnifying levels of insight or too much sparkle. This doesn't mean that they lack in energy or luminosity but they do it without going as far as to sound sterile or analytical. Percussion and high pitched brass instruments, like the natural trumpet, are reproduced with remarkable physicality and plenty of weight so they don't sound metallic, piercing or strident.

The bass is exceptionally well tuned, with great sub-bass extension and a neutrally linear and uncolored mid-bass that stays crystal clear and doesn't clog the mids. Laying and separation are among the best in the category and the low-end successfully balances technicalities with texture weight. Fast, tight and controlled with a very satisfying dynamic impact but a little dry.

People not familiar with neutrally tuned bass may be fooled by frequency response graphs and think the Cadenza 4 as sub-bass focused. It is certainly not and what you actually hear depends on the final mix. Tracks that have too much sub-bass, like electronic music, will sound bass heavy because there is nothing else happening around but pieces with many bass instruments will sound balanced and exactly as they ought to. The Cadenza 4 resembles professional monitors so do expect them to mirror the exact mix. This is not magic, this is exactly how earphones should be tuned for critical audiophile listening. I would dare to say that the overall tuning of the low-end is more successful and neutral in the Cadenza 4 than the Cadenza 12 which has a touch of mid-bass prominence.

The mid-range is also masterfully tuned, natural and organic, with the right timbre and very colorful harmonies. Rather neutral, if not just mildly forward. Clarity and resolution are class leading, the sound is spacious, and crystal clear with excellent definition. The Cadenza 4 is musical and very engaging both when it comes to listening to instruments or voices while at the same time it maintains excellent transparency and fidelity. As said earlier, upper mid-range is a little emphasized to enhance clarity and perception but nowhere sibilant or fatiguing. The textures are also quite full bodied, but not that rich or lush, and the mid-range is devoid of balanced armature timbre or any other traces of artificiality.

The soundstage is immersive and technically capable. Wide but not artificially expanded, spacious and quite roomy, with surprisingly good imaging and plenty of depth layering. The sound doesn't stretch outside the listener’s ears but it never feels congested or restrained. There is plenty of ambient information and a good sense of grandness albeit a little lacking in holography and dimensionality.

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Comparison with the LETSHUOER S15

The slightly more expensive LETSHUOER S15 ($299) is the successor of the much acclaimed S12 PRO and the brand's latest release before the Cadenza 4. This is a plantar magnetic earphone with a 14.8mm driver and a proprietary R-Sonic passive filtering module. These two earphones look quite similar, from the unboxing experience, to the appearance and the included accessories but they have different tunings.

Their appearance is almost identical, 3D printed resin ear-shells, blue vs white, with aluminum alloy panels that have different patterns. The S15 is slightly bulkier and has a longer sound tube than the Cadenza 4. Both are comfortable earphones but the latter offers a slightly better and stress free wearing experience. The package and the included accessories are identical. The stock cables are a little different though, the one that comes with the Cadenza 4 is more lightweight and softer.

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These two earphones have radically different tunings. The S15 has a significant low-end emphasis that extends up to the lower mid-range without clouding it, nor overpowering the higher frequencies. It is high quality bass that is more visceral and weighty than in the Cadenza 4, it sounds more impactful and dynamic but not that transparent and well defined as in the later. The Cadenza 4 has better tonal accuracy but it doesn't sound as fun and bassy as the S15. The mid-range is quite similarly tuned in both earphones but the textures are lusher, thicker and more weighty on the S15. Technicalities and transparency are still better on the Cadenza 4, something that also applies to the treble which is considerably more energetic and extended from a tuning point of view. The treble of the S15 is mildly subdued when compared to that of the Cadenza 4 so the sound is darker and warmer, less airy and sparkling, slightly lacking in vividness and crispiness. The Cadenza 4 is a monitor like earphone suitable for critical listening without sounding boring and the S15 is a fun and casual sounding earphone without compromising on technicalities.

Conclusion

The LETSHUOER Cadenza 4 is a pleasant surprise, an earphone with a refreshing tuning that is not afraid to raise its own voice in a world dominated by V-shaped and Harman target turnings. Tonally accurate and neutrally tuned with class leading technicalities for the category, but without compromising in musicality, this is the perfect choice for critical listening and reference applications. The tuning is almost perfect for all of you who value tonal accuracy and timbre realism but also rest assured that it is not lacking in sentimental depth and emotion. The LETSHUOER Cadenza 4 is highly recommended for the above said reasons and has become my new reference earphone in its respective category.

The review sample was kindly provided free of charge in exchange for an honest review.

The price of the LETSHUOER Cadenza 4 is $249 and you can order it from here.
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kalibri
kalibri
Some of the cons you list are nitpicks really.
Ichos
Ichos
Yes they are but they ought to be mentioned.

hitchhiker

New Head-Fier
Cadenza 4 - Midbudget monitors
Pros: Cohesive sound
Excellent detail
No bleed or sibilance
Great fit
Cons: Not for bassheads
Not for trebleheads either
Letshuoer Cadenza 4 - Quick Impressions
Thanks to gadgetgod and Letshuoer for the review tour of the Cadenza 4, the baby brother of the flagship Cadenza 12.
As always, the opinions are my own and are not incentivised in any way.

OVERVIEW​

Letshuoer has been making very well tuned iems for a long time now. Starting from the well received (among one of the earliest EST implementations) Tape, Letshuoer has come a long way in terms of iem offerings both from quality and quantity (of drivers).

The Cadenza 4 (https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor) is a 4 driver hybrid with 1 Beryllium coated 10mm dynamic driver, paired with 3 BA drivers (2 from Knowles and 1 from Sonion).
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The sound tubes are 50 micrometer engineering marvels, according to the product literature.

PACKAGE AND BUILD​

The package was quite fun and reminded me very much of the Sony Z1r, with 2 layers of packaging.

The top part opened with a magnetic closing cardboard flap with the iems nestled in foam. The second layer slid out like the IER Z1r case with the following contents.
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The lower drawer contained most prominently, the 3 modular connectors of the cables (3.5, 2.5 and 4.4). Nestled in the round rubberized plastic case
was the cables. Nicely done.

The cables are silvery 4 core cables with a very nice splitter and a transparent cinch. The shell body looks like strong plastic (ABS?) with a shiny metal faceplate.

The iems take 2 pin connectors, the 2 pin connector on the stock cables is nice again, with a flat profile.

The iems come with a set of 6 sizes of silicon tips. Overall very nice package.

SOUND AND IMPRESSIONS​

The iems take a bit of power to drive, but are not too demanding. Paired with a Lotoo Paw S1 (as the lowest denominator for good quality sound while keeping the pricepoint right),
the iems drive well off the High gain mode at about 50 volume.

Overall the sound is a nice W signature, with good note weight/body. The bass is sufficiently strong without any bleed, mids are right there in the middle without any push back.
The treble sounds good too with a lot of detail retrieval and air. There is no sibilance that I noticed on test tracks, but there is a bit of sparkle.

They do sound slightly dark, but combined with the air and decay, they make listening to prog rock sound very atmospheric (Pink Floyd - High Hopes).

Due to an excellent fit, passive noise isolation is good and the iems can be worn for a long time without discomfort.

Speed is very good and this results in excellent attack and decay (Alien Weaponry - Kai Tangata)

Who is this for - anyone looking for an excellent balanced sound, with a good fit for small - medium ears and upwards.
Who is this not for - Bassheads

CONCLUSIONS​

This may be one of my favorites in mid-budget this year!
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PROblemdetected

Previously known as sakt1moko
no*SOUND presents... a letshuoer CADENZA 4 review
Pros: .
Great & technical mid-highs
Capsule material is the future
One of the best scene on the market
Cons: .
Anemic bass, which requires a lot from the listener
Headphone for monitoring, not for enjoying

NEUTRAL-ized

LETSHUOER CADENZA 4
🔈SETUP. 10mm dual-chambered beryllium coated DD + 3 BA drivers (Knowles & Sonion)
✨SEN & IMP. 102dB/mW | 15Ω
💰PRICE. 249€ en letshuoer.net

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Go ahead, I can't be so harsh in the final assessment, only taking into account how far from my profile this headset is, not because of the frequency response, but because of the performance in certain frequencies that I find very pleasant ( I admit it, I'm a basshead).
But all this is no reason to place this headset far from where it should be.

It's not coming to invent the wheel, it does not have a striking or particular tuning, it is coming to continue the style of the THIEAUDIO HYPE and similar iems, but with a more contained price and the quality of SHUOER. Not only because of a great construction and appearance, rarely seen on the market, but because when it comes to looking for good materials and drivers, they are professionals in this. Really, the selection of BA and filters that they have placed, the softness in the upper midrange, culminated by a fantastic scene, is not within the reach of many brands. They achieved this in every-one of his releases.

And although the dynamic driver has speed, picks up quickly and agilely, it's capable with sources with little power, to give that extra that making close to be perfect. It is true that it has the ability to equalize, just like my beloved VARIATIONS, for which a couple of decibels at 100hz are wonderfully good... but that lack of power on the bass does not give you it in analytical capacity, like other headphones with a profile similar.

In any case, in the sub300€ range you have so much to choose... but this CADENZA 4 is clearly one of the possible candidates in that selection; If you are looking for an analytical, correct & safe profile, add a fantastic packaging & construction, just need to forgive the lack of forcefulness in the lower area.

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It's a visit for all those looking for a NEUTRAL profile, with capital letters.

✔️ Great and technical mid-highs
✔️ Capsule material is the future
✔️ One of the best scenes on the market

Sensitive to EQ and sources
A little off price
Some filters or switches are missing

❌ Anemic bass, which requires a lot from the listener
❌ Headphone for monitoring, not for enjoying



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Kindlefirehditaly

New Head-Fier
Letshuoer Cadenza 4 Review: True Hybrid Virtuoso
Pros: Hybrid IEM with Sonion Knowles BA
Modular Cable & case
Mid-centric / Vocal focused
Good timbre
Sub-bass enphasis
Soundstage, Separation & layering
Inoffensive treble
Easy to drive
Cons: Price could be high for someone
Slightly nasal mids (really difficult to notice, fixable with tips or Dac rolling)
Not for Bassheads
Not for Trebleheads

Disclaimer:​


The Letshuoer Cadenza 4 was sent to me as a review sample from Ivy from Letshourer, for which I’m grateful!


After the opportunity to try the S12 Pro, S15, and DZ4, I will finally tell you my opinion on the Letshuoer Cadenza 4.


The collaboration with Heygears continues; lately, Letshuoer shells are all produced by them. The aesthetics are always very minimal but I must say that the workmanship of the shells is still excellent.


Unlike the others, this is the first hybrid I’ve tried from Letshuoer so comparisons will be made with other brands.


I’m not an audiophile; I’m just a guy that likes to test out different IEMs and DACs and spends a lot of time listening to music.


So I’m not going to use super technical words to review it, but I will do my best to describe it.


Tech Specs:​

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Packaging:​


The packaging is the one we have already seen on the Letshuoer S15. It differs in very small details that are difficult to notice. It looks like a box of expensive jewelry or a beautiful watch. In the upper part of the box, we find a small letter with manuals and QC inside and immediately below the Cadenza 4, while in the drawer below there are the following accessories:


  • Hard Case
  • Adapters
  • Cable
  • Tips

If there’s one thing I like about the Letshuoer standard equipment, it’s the modular cable (even if it’s a bit stiff). The tips are carefully chosen and give you two options. The case is not the most comfortable but certainly one of the most resistant. The quantity and quality of accessories are good.


Design/Build quality:​


As you may have noticed, the Letshuoer Cadenza 4 follows the aesthetics of the DZ4 and S15. Letshuoer has been collaborating with 3D printing company HeyGears for a while now. The aesthetics are very minimal; they may not appeal to everyone, but I would like to say that on the aesthetic side, there are IEMs with superior aesthetics. In any case, the use of 3D printing allows you to create precise structures for the internal parts and probably also the tubing of the drivers. I’m not particularly interested in aesthetics but if I had to choose, it would be for the shells made from solid aluminium. The Letshuoer Cadenza 4 is still a nice sight. The faceplates are made of metal, which is very simple on the aesthetic side. We see that on the shell we only have one ventilation hole. The nozzle is massive and could annoy some but the shape is perfect as far as I’m concerned.


This time, the configuration is hybrid! We have a 10mm beryllium dynamic driver coupled with 3 balanced armatures. The first balanced armor is a Sonion, while the other 2 are Knowles. A decidedly interesting configuration already makes you understand why the price is a little high.

Comfort/Fit:​


As already mentioned, the shape of the shells is one of the best so far. The most classic forms are often the best and this proves the theory. They are very light and extremely comfortable. The original tips are both fine if you don’t want to replace them but I still used the Tangzu Sancai wide-bore ones. Decent insulation but not perfect.


Initial sound impression:​


At first listen, I noticed its medium-centric tendency. It’s not a bad thing but I noticed it immediately because I spent weeks with Simgot in my ears. I went from something with a certain brightness and definition to something that has a certain roll-off at high frequencies. It makes everything very safe and appealing to a wider audience.


It winks at the Harman target, rather than V-shaped, I would say it is W-shaped or U-shaped at times. The sound has a warm, lush note that is extremely pleasant. All in all, there is an excellent balance between all frequencies, with a slight preference for the mids. Everything sounds particularly natural; the sub-bass has a nice push that adds that depth that I like so much. Another very important thing is that it goes well with practically all musical genres.


Final sound impression:​


Equipment was used for the testing above.

Device:

  • iMac
  • Redmi Note 7 Snapdragon
  • Poco M4 Pro Mediatek
Software:

  • Amazon music UHD 24bit 96kHz (Both)
  • Spotify
DAC:

IMG_20240507_160613-scaled.jpg

My first impressions after about 20 hours of burn-in, in which I let them play without listening to them, are that the Letshuoer Cadenza 4 is a very interesting set and certainly, given the tuning chosen, many will like it. Furthermore, she goes with different musical genres. I started from EDM, D&B, R&B, Jazz, classical, and rap, and there isn’t a single genre in which I wasn’t surprised with the performance.


Letshuoer has created a good mix while remaining on the safe side. In terms of Dac/Dongle, you don’t need an exaggerated amount of power to drive them at their best but a good dongle with balanced output certainly helps them considerably. If you have something analytical and neutral, even better! Its slightly warm nature is mitigated by analytics dongles such as the EPZ TP50, Fosi DS2 or Fosi SK02. The synergy it has with the Simgot DEW4X is particular, which presents a superior soundstage. Personally, I think it is the combination that I like the most and that I will continue to use for the review.


Tips Rolling?​


Tips Rolling
Tips Rolling

An upgrade of the tips is not strictly necessary but the Tangzu Sancai Wide Bore had just arrived and I thought I’d try them. The nozzle practically comes to be totally free in your ear, avoiding reductions in soundstage. Excellent combo.


The Divinus velvets, as usual, prove to be universal; every headset you mount them on will give you the perfect seal and improved comfort. In terms of sound, I didn’t notice an exaggerated change from the stock balanced tips. Maybe less bass.


The Dunu S&S I didn’t think they could be suitable for the Cadenza 4 and instead I had to change my mind. They move the IEM away from the ear a little but we remain in our comfort zone. The difference compared to the Tangzu is a slightly less full bass, brighter mids and slightly more refined highs. Obviously, the soundstage is wider and I can tell you that all in all, it has an excellent result if you are willing to sacrifice a bit of bass.


In my opinion, the included SS20 similar tips are exceptional, even the others are not bad at all for being stock. You don’t need a real upgrade but if you have some tips rolling at home, it never hurts.

IMG_20240506_122851-scaled.jpg

Bass​


I must say that with the Tangzu wide bore tips, the basses have a very pleasant level up, the sealing obtained is perfect, andthe insertion is also quite deep. The bass quantity is not high, but the 10 mm single DD returns a rich, warm, and textured bass. Let’s be clear: it’s not at a basshead level but it still makes itself felt. The one that is properly emphasized is the sub-bass, which adds the rumble and the right rich and deep vibration. Honestly, very pleasant bass in the quantity that I would have liked to hear on the Simgot. A slight emphasis, without exaggerating, is an excellent combination with the mids.


Mids​


The mids are the real protagonists of Letshuoer Cadenza 4. They present themselves ahead of everything, making the vocals and instruments alive and rich in detail. Track after track, we become more and more sympathetic to this kind of choice. A silky representation of the voices, which are all extremely exciting, the instruments are particularly well sounding and natural. I only notice a very light nasal note and a very small haze on some tracks. Let’s say that it isn’t noticeable that much and perhaps it is precisely this touch that gives a certain warmth and sense of reality to the voices. The precise separation of frequencies here becomes much clearer, the tubing of the drivers is well done, and the sounds are all in their place without invading regions that do not belong to them. What is perhaps missing is a slight extra sparkle on the highs, which causes some detail to be lost.


Treble​


As I already said, they didn’t exaggerate with treble extension. I can say that the choice certainly makes sense since many do not tolerate these frequencies very much, but those who tolerate them will certainly notice that some details are lost. Fortunately, the loss is not high and the highs are very fluid with good resolution, as they are not extremely high you cannot hear sharp highs. The IEM can be pushed at high volumes without reaching annoying peaks. The separation is excellent but for trebleheads, it could be considered warm and calm, even if, in the end, there is a good presence of macro and micro details. A touch more sparkle would have been perfect, however, there are DAC combinations that solve this situation slightly.


Soundstage and Imaging:​


Letshuoer Cadenza 4 doesn’t reach the levels of the Letshuoer S15 but I can tell you that the result is excellent. The driver tubing and precise tuning maintain excellent sound separation which contributes to a wide soundstage with good depth. Each sound arrives at the eardrum clear and perfectly distinct from another. Following every little nuance of the track you are listening to is very simple. Good job!


LETSHUOER Nebula Cable Upgrade:​

IMG_20240430_131652-scaled.jpg
Nebula Cable & Earhook
If you expect a difference between day and night, then know that this is not the case. However, against all expectations, despite being a copper cable (which usually increases the bass), here we have a very strange increase in brightness. I say strange because I doubted I would notice any differences, especially regarding the high frequencies, somehow like a sprinkling of stardust on the already excellent Lethshuoer Cadenza 4. Somehow it makes them extremely attractive, starting from the mids, which lose the very light note of warmth or nasality they had. With this upgrade, the Letshuoer Cadenza 4 seems much less mid-centric, giving a superior balance between all frequencies.


I’m very much for the placebo effect, it’s almost inevitable that our brain comes into play. There is a bit of self-conviction that the new cable is better than the old one. In any case, if there were large variations in sound it means that one of the two cables was made of non-conductive material. I am also passionate about audio systems and speakers and have already suffered from cable disease. Now I feel better and as long as we’re talking about pure copper everything is fine.


Without bench tests with measurements, my words stop at personal sensations.


Comparison:​


vs Letshuoer S15

IMG_20240111_133700-1-scaled.jpg

If you prefer the bass of the DD, the Letshuoer S15 will probably not be considered. The almost $100 higher price makes them fit into a totally different budget. There are those who consider them one of the best planar IEMs to date but they have opponents like the Hidizs MP145 who question their price. What I can tell you is that the planar presents many more macro and micro details and the soundstage develops in a wider and more precise way. Personally, I prefer the bass of the Cadenza 4 but on everything else, the planar driver has a superior and more immersive performance. The rumors about Cadenza 4 are slightly better but both are very attractive.


vs Simgot EM6L

Simgot EM6L
Simgot EM6L
A much cheaper hybrid IEM from Simgot. One of the best examples of a successful hybrid in a price range where others have failed to achieve great results. Every time I wear them, I am surprised, even though the driver configuration does not include BA from Sonion or Knowles. Its sound is full of energy and the tuning is also suitable for gaming as it is very precise on details. The Simgot EM6L, although successful, does not keep up with the brand new Candeza in terms of technicalities.


vs Simgot EA1000

Simgot EA1000
Simgot EA1000
The Simgot EA1000 but also the EA500LM allow you to ask yourself the following question: “Do we really need more drivers?”


Honestly, in the case of the EA1000, the answer is that no other drivers are needed. This is not a rule but Simgot has demonstrated that it is possible with a single driver to obtain something extremely close to what we can define as high fidelity, both in terms of performance and timbre. I consider them a point of reference for those looking for something that sounds extremely faithful.


vs Hidizs MS5

Hidizs MS5
Hidizs MS5
The MS5 are the IEMs that decided to start the reviews. A sort of first love. A fairly extreme hybrid IEM from Hidizs with a purely V-shape nature with borderline highs, if you are sensitive, these are absolutely not for you. They go far beyond the brilliance you can experience on Simgot. In terms of bass, they are more present and emphasized. my favorite nozzle is obviously red. The others are too much, even for me. At the detail level, the macro and micro details are more highlighted.


But its biggest flaw is that it is not an IEM suitable for any musical genre. In terms of results, the Letshuoer Cadenza 4 is superior,in my opinion.


vs Hidizs MS3

Hidizs MS3
Hidizs MS3
I consider the Hidizs MS3 to be an excellent rival, typically more V-shaped, providing a much more robust bass and livelier highs. Sometimes they could be at the limit but I’m on balanced cable, and they are more contained than the MS5, giving that touch of brilliance that is kept more controlled on the Cadenza 4. Depending on what you are looking for, they could be an excellent alternative.


Conclusion:​

IMG_20240508_160640-scaled.jpg

Undoubtedly, Letshuoer has managed to make an extremely exciting hybrid IEM, and the Nebula cable is certainly an appreciable upgrade. Also keep in mind the importance of the eartips and, above all, the DAC with which they are combined. In my opinion, the Simgot DEW4X is the one that has the best synergy of all.


The Letshuoer Cadenza 4, aesthetically, is simple but sturdy; the design may not appeal to everyone but the HeyGears shell is of excellent workmanship. Comfort is optimal and being light, they do not cause any problems of heaviness even after several hours of listening. On long listening sessions, it does not cause any kind of problem or annoyance, whatever genre of music and listening volume you choose. I can’t say the same thing about the Hidizs MS5, on which the volume I can tolerate depends a lot on the track; the highs literally bite the eardrum despite some extra detail. I really liked it, one of the best hybrids so far.

Where to buy? More info? (no affiliate links)​


LETSHUOER Cadenza4 wired IEM Hifi earphones Beryllium coated DD BA hybrid High-fidelity monitoring in-ear monitor
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hokagoteatimereviews

New Head-Fier
Jack of all trades master of none
Pros: 1. Great overall sound for its price point

2. Will please both the bass or treble liking audience, as it does a great job at balancing the sound

3. Fantastic fit!

4. Beautiful cable

5. Modular Cable is really good

6. The iems is very light so vert easy to wear for long periods of time

7. Plays almost all genres very well

8. In a sea of Harman tuned iems this seems like a fresh breath of air
Cons: 1. The selection of tips could have been a bit better

2. A tad bit more bass would have been nice specially for some pop songs and instrumentals
Imagepipe_355.jpg


Introduction:-

Hey guys, today I have the Lethsuoer Cadenza 4 with me. This is the budget version of their flagship iem the Cadenza 12.


I have also shared a video version of the review at YouTube any support there in form of a view, A like or A subscribe is greatly appreciated. But if you so wish to read the written version you can read this.







This is a review unit from letshuoer but all the thoughts and opinions you are about to hear are my own.


Buy it here (Unaffiliated Link) :-

Letshuoer Store - https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor

Amazon USA - https://www.amazon.com/Letshuoer-Beryllium-Coated1DD-Detachable-Audiophile/dp/B0CRGQ9BMB

Letshuoer Aliexpress - https://www.aliexpress.us/item/3256806531430674.html


I will be as usual following my bullet style format for better readability for those who are dyslexic and in general find it hard to read long paragraphs. I follow this guide in general from the British Dyslexia Association.


Lets get started!







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Build, Comfort and Accessories:-



1. The overall packaging of the Cadenza 4 is exactly as same as the S15, I will show a picture so you get an idea.


Imagepipe_351.jpg




2. The iem is this 3d printed plastic which has the same texture as the fantastic case.



3. It has only 2 types of tips one for vocal and one balanced, for my testing I have used the balanced tips



4. The cable is modular and is really supple and is better than the S15 cable in my opinion. The cable also has very minor microphonics



5. The iem is built very well, and the outer face plate is made out of aluminium



6. The fit is fantastic! I mean this is literally the best fit of an iem I have had. For me it seems like a custom mold



7. I can wear them for 8-10 hours and wont find any discomfort.



8. When I wear the iem, there is an immediate reduction of surrounding noise. The passive noise isolation is really good.



9. The price of the Cadenza 4 if ordered from the pre-sale from March 25th to March 31st is $229 and the MSRP is $249



10. The cadenza has a 1 Dynamic Driver and 3 BA drivers with 1 being sonion and other 2 being knowles



11. They have 3 acoustic tubes with a 4-way crossover



12. There is no driver flex here



13. There is a minor BA Timbre








Imagepipe_349.jpg




Sound Impressions:-



1. The overall sound impressions of the cadenza is that its very neutral with a subtle sub-bass boost.



2. While this might seem like a harman tuning at first but the treble is much more well controlled than harman



3. The overall tuning sounds really clean and it doesn’t cater to either basshead or treblehead



4. Honestly its refreshing seeing a tuning like this in a sea of harman or v or u shaped iems!



5. I will be using my usual devices for testing the cadenza 4



6. They are easy to drive but does scale well with power, so some of the testing is done via the 4.4mm



7. In my opinion they sound quite good at low volumes too, but the iem shines when playing at medium to medium high volumes.



8. All my testing is done at variety of volumes to get a proper idea



9. I have used all the stock accessories for testing



Bass-



1. The bass here is sub-bass focused rather than md-bass focused which is good for me personally



2. If you are someone who likes mid-bass over sub-bass, you might be a bit disapointed.



3. But that doesn’t mean that the mid-bass quality is bad.



4. The overall bass quantity is very apt that is its not too much or too less.



5. But, what I did find is that some bass heavy songs like crack crack crackle by classy does lack that final crispness of the bass. A tad bit more bass could have soundeed even better.



6. This bit of lack of bass is also apparent when listening to instrumentals like cassiopea and ymo



7. When listening to the 1985 live album from cassiopea the instruments sounds good but the overall impact of them feel a bit flabby. But when a bit of bass is addeed like lets say by using the Xbass mode of my ifi go blu the instruments gets this body they become tactile and they really shine



8. Using the xbass mode in my ifi go blu also gives me that final crispness of the bass which I found lacking for some songs.



9. While majority of the audience who likes a clean sound will be pleased with the sound of cadenza 4



10. I think adding a tad bit to the bass region with the likes of ifi go blue using a xbass mode really makes the overall bass shine and also giving the instruments a bit of body and edge


Imagepipe_348.jpg




Mids-



1. The midrange is really good



2. The male vocals sounds crisp and they come across in the mix



3. Sometimes in some songs deep thick male vocals like bill withers or chris cornell sound a tad bit sterile and their thick luscious nature doesn’t really come across that well.



4. Again adding a tad bit of bass helps a lot here too. Then again this is a nitpick here for the price and tuning it is following, but I still thought of mentioning it.



5. Now female vocals here are exceptionally done!



6. They are really good and come across perfectly, they aren't too shouty but neither are they laid back.



7. Songs like OP from Tearmoon teikoku monogatari which is Happy end princess by Sumire Uesaka comes across perfect! Her voice is neither too shrilly or too laid back.



8. I really recommend this if you want something for female vocals which also has good male vocals



Treble-



1. The overall treble is really well done



2. The treble doesn’t sound shrilly or piercy at all and is perfectly in sync with the upper mids



3. There is a slight roll-off on upper treble which might be a bit of issue for some songs



4. This is not a treble head iem, but it does a very good job in balancing a good treble details while not sounding too piercy



5. People who are sensitive to treble will like this



6. Although someone who loves even darker treble, might have some issues here. And might find it a tinge shrilly at higher volumes



Technicalities:-



The overall technicalities is really good. Its not the cleanest out there, but as I said before it does everything nicely and does a great balancing act


Imagepipe_350.jpg




Soundstage & Imaging:-



It is really fantastic! The soundstage is probably best in the price range. And when listening to songs like Galatic Funk by Cassiopea the 1985 live version it is even more apparent. The claps at distance and the placement of the instruments is so well done.



The imaging too is very well done, the left to right transition and vice-versa comes across really well.



Gaming Test:-

Here they do a really good job. The footsteps are heard really well while also having a good idea about the surrounding too. But when there is too much happening and If played at higher volumes they will sound a bit shrilly.







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Comparison & Recommendation:-



1. v/s 7hz Timeless AE – I prefer the cadenza 4 in some cases as it does a good job in most genres. But if I want a fun sounding V-shape iem then the timeless AE will be my choice.



2. v/s EA1000 – The ea1000 is harman done well. Its fantastic iem, but the ea1000 is quite a bit bright sounding when compared to the Cadenza 4. If you are a treblehead ea1000 it is, if you are not and want a more all rounder iem then the cadenza makes a better choice.



3. v/s S15 – The s15 is more of a relaxing iem while the cadenza 4 is more of an all rounder iem. The cadenza 4 has better treble response than s15. But the S15 is almost $100 more than the cadenza 4. So it really depends on what you want.



3. I really like the cadenza 4, specially for the price both MSRP and early bird.



4. I think so the cadenza 4 is an almost perfect neutral sounding iem for the price.



5. While it wont fit the bill for the bassheads or trebleheads out there, it does a great job balancing the act.



6. I personally prefer pairing the cadenza 4 with the ifi go blu and using the xbass mode


Imagepipe_353.jpg




7. The tad bit better bass response and giving the instruments a bit of a body which I get by doing that is so well worth it.



8. Its really nice seeing an iem like this in a sea of harman tune or v tune iems.



9. I think so the cadenza 4 is an excellent option for anyone wanting an all-rounder iem.



10. If you do get it, I highly suggest adding a tad bit more bass or if you have an ifi go blu suggest using the xbass mode to improve the overall sound a bit.



11. Unlike the S15, cadenza 4 is priced is fantastically. A default recommendation form me around the $200 price point as of now.



12. So thats my review of the Cadenza 4. I hope you liked, Thanks for stopping by!






If you have any questions please feel free to ask me and also if you have any issues regarding this format of review please do comment I will try to mend it. Also sorry to those who are used to reading long paragraphs of review in headfi. I hope my review was upto the mark, I appreciate any feedback.

Again a big thanks to Letshuoer for making this review possible.

Have a great day ahead, Bye :)
D
David Haworth
great review.... easy to read bites... well done
hokagoteatimereviews
hokagoteatimereviews
Thank you so much David 🙂 I really appreciate the kinds words and it means a lot coming from you ❤️

Leonarfd

Headphoneus Supremus
The Refined Letshuoer Cadenza4
Pros: Price to performance
Refined natural timbre
Tight well extended bass
Clear and smooth midrange
Natural treble and air
Excellent ergonomics
Good accessories
Premium built, love the material of the shell
Cons: Soundstage is average in size
Not the most resolving
Depending on music could have had more bass
The Refined Letshuoer Cadenza4

1715439237276.png


Disclaimer

I got the Cadenza4 for free in return for a review, I am free to say whatever I want.

All impressions are my own subjective thoughts after having used them for a good time. These are my thoughts at this moment, and as time moves I might change my opinion.
This is also a very subjective hobby where everything from experience, anatomy or age will affect what we hear. Also keep in mind that it is easy to use bold words when talking about differences, while it may be perceived as a small change for you.
While I can perceive something as natural sounding, I do believe we can never get a perfect performance similar to what is achieved live.

Ranking System:
1 Very bad or unlistenable
2 Listenable but not good
3 Average
4 Very good
5 Exceptional or having a special sauce

My rating system highly values what is musical for me, so my rating will always be a subjective opinion.

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About me and my gear used for the review

My audio preference is neutral with some warmth, I can also like forward midrange and treble if not excessive. I am a believer in having different tuned gears for different genres or moods instead of chasing the single perfect one.

Main music genres I listen to are Metal, Electronica, Jazz, Indy rock/metal, R&B, Pop. I am a music lover, and can also listen to almost all the genres out there.
I have been into music gear since the mid 90s, gifted some big speakers at an early age. Then moved more and more into headphones with the Koss Porta Pro and a Sony Discman.
I have also tried playing many instruments over the years from piano to sax and have a feel for what's a natural tone, but not the biggest patience in learning to play.

My current favorites in Headphones are ZMF Verite Open and Beyerdynamic T1 G2.
My current favorites in IEMs are AüR Audio Ascension and Campfire Audio Bonneville.
My current favorites in Earbuds are FranQL Caelum and Blue Moon.

Gear used in the main rig is Denafrips Ares 12th-1 DAC together with the Topping A90 Discrete headphone Amp. I also have a Schiit Lokius I can swap in if I want to do a little analogue EQ.

Portable main gear being HIBY R8 II and HIBY R6 Pro 2, with some dongles like HIBY FC6 and Colorfly CDA-M1P.

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So what is the Letshuoer Cadenza4

Letshuoer is a IEM brand that was founded in 2016 in China, they have had many well received releases. The Cadenza4 is their newest model, it is a hybrid IEM with 1 dynamic driver and 3 balanced armatures. As of this time it retail at $249.

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Packaging is excellent and among the better ones, especially when we look at IEMs at this price bracket. That can also be said for the accessories, you get two sets of silicon tips in small, medium and large. One set focusing on vocal clarity and the other for a balanced sound, should be easy to find tips that work for most people.

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The IEM cable is also of good quality, it is not too thick or thin. Minimal amount of memory and is quite pliable, the ear hooks seem improved from earlier Letshuoer models and work for me without any modification. It also have Letshuoer angled modular system, so you can swap from 2.5mm, 3.5mm and 4.4mm. The connection of the modular part is solid, don't need to be afraid of it falling out as it does on some brands.

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You get an envelope with some pamphlets, one about warranty and one on instructions. Also a quality control mark.

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In my opinion the design is elegant, the aluminum alloy faceplate against the 3D printed resin shell looks very clean. The surface has a smoother surface that's very pleasing, and also feels premium.

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The nozzle has a good length and is average in size if not even a little smaller, should fit most ears excellent.

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The grooves are subtle, but really help Cadenza4 sit comfortable and snug. There is also a vent on the side of the 2 pin connector to not get any driver flex or ear pressure.

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3 way acoustic tubes, with 4 way digital crossover. The internal tubes are 3D printed to get the acoustic properties that Letshuoer wants.

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Specs from the product website:

Quad driver hybrid in-ear hifi earphones
  • Cadenza4 uses a proprietary 10mm dual-chambered beryllium coated dynamic driver, which possesses the characteristics of being light and extremely rigid.
  • The combination of Knowles and Sonion balanced armature drivers which makes the Cadenza4 to be packed with resolution, rich in mid-frequency details, and ample treble extension.
  • Cadenza4 adopts three acoustic tubes that are combined with an electronic four-way crossover. The 50μm 3D printed acoustic tubes ensures accurate, smooth, and consistent sound. The four-way electronic crossover allows for precise control of frequency distribution and significantly reduces phase errors.
  • Cadenza4 once again collaborates with Heygear Technology to refine the earphone chassis. Ensuring comfortable long-term wear and enhanced durability. The panel is crafted from CNC aluminum alloy material with a matte finish which provides a delicate and textured feel
  • Cadenza4 comes standard with a 392-strands high-purity silver-plated monocrystalline copper cable, enhancing the fidelity of the sound. With three types of 90° interchangeable plugs, which significantly improves device compatibility.
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4oxRlEXodtIV5f9E5AdDDWcadrtAyW5-dVECqpyTmISYJvL_2i0ihS501sS1wQsJENz5CDgDgsRa2htMIyjVw5EoaOU0fdSOdUqQm2cTrKuwSv7q8NqchgQHqIgFK3Ji1rDK9nbv_9yNkfgRb0l1pwQ


https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor

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Timbre

First off, what is Timbre?
From the Wikipedia:
The Acoustical Society of America (ASA) Acoustical Terminology definition 12.09 of timbre describes it as "that attribute of auditory sensation which enables a listener to judge that two nonidentical sounds, similarly presented and having the same loudness and pitch, are dissimilar", adding, "Timbre depends primarily upon the frequency spectrum, although it also depends upon the sound pressure and the temporal characteristics of the sound"

First minutes of trying a new set of gear, what I always listen to is how natural and musical it sounds. Much of this goes down to how I perceive the Timbre.

The sound is neutral with a small hint of warmth, it's very coherent for a hybrid IEM. Sort of smooth but clear sounding, just a very balanced and good timbre.

Going to use the ranges here in review:

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Details and soundstage

This is not a super resolving IEM, but still quite decent when you look at the price point and against other hybrids. You can then still hear everything that's portrayed without exaggerating the flaws, but also doesn't mask them.

Soundstage is also average when looking at width and depth, what it does very well is having an enveloping stage around me. Sort of 3D where I feel I'm more inside the music, engaging and fun.

Bass

The bass is tight and reaches deep, it's quite fast and not as forward sounding. So its not all music that sounds as full and engaging as I prefer. But if we look at the quality, it's excellent with good texture and speedy decay.
Mid bass could have been a little more powerful, at least for my taste.


Mids

Mids are very natural with good clarity and presence, also without sounding harsh or shouty. The low midrange is very clean without any bleed from the bass, this also means it can be a little lean and soulless if you prefer more lushness.
I am one who prefers more low mids, but lately I have been appreciating this type of tuning much more than usual. This might be better for some music, and also to make vocals more clean and crisp.

This is actually one of Cadenza4's strengths, vocals have very good clarity and presence. Especially on brighter females, it also delivers this without any shoutyness or sibilance.
It does female vocal, or brighter vocalists better than darker ones. Not that males are wrong, just lack a little body. Instruments sound natural and clean also, and similar to vocals depends a little on what range and how they play. For example, sax has a good bite without shouting, and instruments like piano sound coherent and clean front the lowest octaves to the brightest.

Treble

Transparent and open sounding, not the best upper extension and lacks some air. But looking at how clean and resolving the treble is excellent, it is also not sounding sharp or sibilant. Might be someone's preference as you get a very good lower treble without any painful upper treble, that often sounds forced to my ears.

Synergies

I prefer to use warmer sources with Cadenza4, so HIBY FC6 is excellent and sounds very good. Using a player like HIBY DAP is also excellent, sounds more resolving and clear with Cadenza4. Using the dynamics plugin of HIBY is also a great way to add warmth for a more fun sound.

Stock cable is very good for me, both in sound, design and comfort. Divinis Velvety worked perfectly for me, but I did try Final Audio Type-E tips for more bass. But didnt feel it helped, except for making it less open sounding.

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Comparisons

When evaluating the sets I use each of them over longer periods and also some shorter sessions swapping back and forth, it takes a long time and is not done in one sitting. The most critical comparison is done on my desktop setup that is highly resolving, with volume matching through a microphone to take away loudness variance.

The spider chart is slightly exaggerated on some points to show differences.

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Letshuoer S15

This is their flagship planar IEM costing $329, uses a 14.8mm planar magnetic driver together with a 6mm passive filter. Competition with its own S12 has made it a tough sell, even if its better both in tuning and performance.

The shell has a similar type of material that I wish more brands could start to use, as it helps with comfort and feel more premium. The ergonomics are not as nice on S15 as Cadenza4, it lack some of the subtle nozzle and groves making Cadenza perfect.

Bass is very good as a planar driver, can almost fool me on some music for being a DD. But it lacks some texture and also the decay seems wrong to me, almost a little blunted. So it can't keep up with the quality of Cadenza4 low end, at least for me.

Mids are relaxed and smooth, very forgiving. But also lack some bite and energy that is needed for brighter vocals and instruments. Treble is also forgiving and smooth, and less airy than Cadenza4.
S15 is overall a very forgiving IEm with warm tonality, just better for relaxed listening instead of picking music apart.

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Hisenior Mega5EST

This is a tribrid and flagship from Hisenior costing $550, it has 1DD 2BA and 2EST. Reason why it is inside the reviews as comparison is due to both having a very refined natural sound, and Cadenza4 reminds me of a baby Mega5EST with more bite.

Also a quite small IEM, but larger than Cadenza4. Both are very ergonomic, but Cadenza4 is the best. This also uses a more traditional resin shell, getting the glossy look instead of the matt look on Cadenza4.

Both have good bass performance, the Cadenza4 is a little tighter and Mega5EST slightly more textured.
Midrange is both similar sounding and a little different, both have a very clean midrange that's coherent with no BA timbre. The Mega5EST has a more relaxed style, so instruments like brass or cymbals have less bite and presence. Cadenza4 instead pushes this more forward making it more energetic, also why I say Cadenza4 is good for female vocals.

Treble and air are also different, Mega5EST have more shimmery and detailed top end.
Probably due to the EST drivers used in Mega5EST, but both have good highs anyway.

Mega5EST is slightly more technical but it's very close, some music can be clearer on Cadenza4 since the upper mids are pushed more forward. So I rate them about equal on resolution. Soundstage is also very similar, not the widest and deepest and they are quite similar.

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Music

https://tidal.com/browse/playlist/ad7bbfa3-2067-4235-b2ed-f5a3fb53ff28

When comparing Letshuoer Cadenza4 to other sets I have used the tracks listed here and more.
The link is to a playlist consisting of some tracks I have saved for testing, it's still a work in progress.

I will also do it a little differently than what I usually do, I'll mention a small part under each track with how each IEM sounds like compared to the Cadenza4. I will provide a link to each track for you to test out, my own listening being with my FLAC files or Tidal streaming.

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Djo - End of Beginning
https://songwhip.com/djo/end-of-beginning

Cadenza4
Pleasing and clean sounding, enough body to make drums, bass and vocal be engaging. This is not the most technical recording, so it's better to just use it for enjoyment evaluation. And the Cadenza4 nails that one.

S15
A very similar weight to the music, but lacks the organic natural side of Cadenza4. Especially noticeable on his voice, it is also not as clean and open sounding with some darker upper frequencies.

Mega5EST
Very similar to Cadenza4, has some extra body due to the warmer tilt. Have a small edge on the details, but the difference is small.

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Adam Baldych, Leszek Mozdzer - Passacaglia
https://songwhip.com/adam-baldych/passacaglia

Cadenza4
Clean and natural sound, has a good bite without being sharp. The violin sounds rich and vibrant, and the same can be said for the piano. Good amount of detail to show the nuanced plucking or bowing of the violin or the grand piano.
Cadenza4 is my new recommendation for orchestral music in this price segment, nails both timbre and technicalities.


S15
Softer and darker than the two other models here, very forgiving. Also a step below in resolution, I think this is more due to tonality than the driver. As the S15 has a very capable planar driver, the biggest downside is that I still don't find the planar driver correctly sounding on acoustic music.

Mega5EST
Very natural sounding and spacious, both piano and the violin are lifelike. Amount of texture and body to the violin is natural and slightly more correct than Cadenza4, it also sounds more airy on the Mega5est. Some parts are softer on Mega5EST, while the Cadenza4 has some extra clarity and presence on certain parts.

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Gidge - Gausta
https://songwhip.com/gidge/gausta

Cadenza4
Gidge just released this album, and Cadenza4 was my first IEM hearing the album with. The beryllium driver has very good bass texture and decay for electronica, I have no need for EQ on this track. Warmth is tasteful and not too weighty so the rest of the elements can also show, but I'll focus on the bass: Bass is sort of dense and round, it sounds solid and fast.

S15
This is the best sounding planar I have used, specially for bass and low mids. Still it doesn't sound the same as a good dynamic driver, sort of more plasticky and hollow. This goes also here for this electronic track, sort of lacking something.

Mega5EST
The bass is tuned very similar to the Cadenza4, with good sub bass extension and some natural mid bass warmth. Driver is Bio Cellulose and is softer than the Cadenza4 driver, this can also be heard in this electronic track.
Bass is still dense and round, but softer in the bounce and less speedy (not slow by any means). In a way slightly more textured, both are excellent on texture anyway.

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girl in red - Too Much
https://songwhip.com/girl-in-red/too-much

Cadenza4
Her newest album and perhaps best track from it, also a radio hit in Norway.
The Cadenza4 has a tasteful forward upper midrange with clear low mids. In return it shines with female or brighter vocals, and has a lot of bite on her vocal. Also means it shows every nuance of her voice, and doesn't hide it when she has some edge in her voice.
Vocal lovers should be very pleased for female vocalists, be it this style or something like J-pop.

S15
Softer and darker, she doesn't have the same bite and clarity and lacks some soul. This is not only due to tuning, but also some due to the planar driver. Still don't really nail acoustic music or vocals, I am exaggerating some. And I might be more sensitive to the planar timbre, but even so I don't think female vocals are S15 strength.

Mega5EST
Going from the Cadenza4 it's clear that Mega5EST has less bite and presence on her voice, making the music softer and more forgiving. Her more intense or edgy parts are more forgiving, and not really noticeable here like they are on Cadenza4.
So depending on what you like, this might be too safe and lack the clarity on vocals like Cadenza4.

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WENDY - Wish You Hell
https://songwhip.com/wendy/wish-you-hell

Cadenza4
Very clear and crisp, for me almost too energetic sounding. But I am more used to sets with less vocal presence, even if it's forward it's very clean and not piercing or metallic.
In return you do get a very resolving presentation here, riding a good balance of detail and fun.

S15
Actually find the S15 quite decent and fun on this track, softens some of the energetic elements and makes music more pleasing. Lack the clarity and don't sound as detailed as the Cadenza4, but it's not bothering me as much here as with the previous track.

Mega5EST
It's a reason why this has been my favorite set lately, the relaxed upper mids is to my preference. It does give you a less energetic sound, but in return the music is smoother and more forgiving.
It's as resolving as Cadenza4 on her vocal, and actually has a more airy silky top.

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Sean Ono Lennon - Acidalia
https://songwhip.com/sean-ono-lennon/acidalia

Cadenza4
Very clean and open sounding, instruments are crisp and nuanced. It lacks bass, which would have sounded better with a little extra bass boost. As it gets a little thin on drums or the guitar, but again that's for my preference.

S15
A little too safe sounding, but also very pleasing. The drums are softer, cymbals also have less bite and clarity. But again it sounds warmer than Cadenza4, and fits the track more.
The guitar itself is actually very dreamlike with the softer sound on S15.

Mega5EST
Warm and smooth sounding, fuller than Cadenza4. Due to the mids it sounds less resolving and open, so looking at clarity and energy the Cadenza4 is better here. But it's not as safe as S15, and a step closer to Cadenza4.

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My Dying Bride - Her Domination
https://songwhip.com/my-dying-bride/her-dominion

Cadenza4
While the Cadenza4 has good clarity and sound fast for rock and metal, it does lack some warmth and mid bass presence to sound full and engaging. Cadenza4 is quite airy on the cymbals, and adds some realism to the track.

S15
Sound thicker and have more life on the drums and guitars, also the growling sound fuller and more husky. But the cymbals are very dark and veiled after having listened to Cadenza4, also doesn't sound as resolving as Cadenza4.

Mega5EST
Absolutely the best of the three for metal and rock, have the fulness like S15. But have a clarity more similar to Cadenza4, just softer on the cymbals. But the cymbals have more airiness to them even if they are not as powerful as with Cadenza4. His vocals are also the best mix of fullness and clearness, in the middle of Cadenza4 and S15.

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Conclusion

I truly recommend the Letshuoer Cadenza4 for the ones looking for a good natural sounding IEM.

The Cadenza4 is an excellent release, one of the best ones this year. It is now my favorite sub $500 neutral hybrid IEM, especially a favorite for natural sound. It is good with most music, while really shines with vocals or acoustic music. It mixes smooth tonality with good clarity, a pleasing and refined sound.

You also get a clean and nice looking IEM, perhaps the most ergonomic IEM out there due to size, material and shell design. You also get good accessories and a nice presentation, it is just a very good deal you get here.

It's a solid 4 star release, at technical point its a 3.5 but I'm taking price and the whole package in consideration.
Last edited:
MD Rohit
MD Rohit
Great review with beautiful photos

ngoshawk

Headphoneus Supremus
Reviewer at Headfonics
LETSHUOER Cadenza 4: Does Trickledown work? Me thinks so.
Pros: Pleasant sound
The 3D build makes it affordable
Fit
Unassuming look (understated)
Solid bass does not hinder overall signature
Cons: Build looks a bit beneath it
Some cable microphonics
Tough market
LETSHUOER Cadenza 4 ($249): Does Trickledown work? Me thinks so.

4.25

LETSHUOER Cadenza 4

FqWePy9.jpg


Intro: Following on the heels of the successful Cadenza 12 (a wonderful TOTL), and the S15 (A smooth-sounding IEM), the Cadenza 4 tries to fit into a niche using both (IMO) IEMs as models. A hybrid that uses both DD and two types of BAs (Knowles & Sonion), the company uses the expertise from both models mentioned to fashion a high “low-end” model.

The Cadenza 4 was given to me for review. It is implied that the critter is mine, but may be asked back for any time. This of course bears no bearing upon my review. Plus, I still feel that flipping review units is uncool.



Specs:

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In The Box:


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Gear Used/Compared:

Cayin N6ii mkii
FiiO CP13
iFi Diablo2

Shanling MG100 ($159)
LETSHUOER S15 ($329)
QoA Aviation ($199)


Music:

Tidal-Jazz, Blues
Qobuz-same w/ Big Band & Norah Jones


IsluEKr.jpg


Unboxing:

Just like the S15, the unboxing is Empire Ears-like, with a slide-out tray, which contains the IEM cable inside the case. To the right are the three interchangeable jacks (2.5mm bal, 3.5mm se, & 4.4mm bal). But above that, you get to see the Cadenza 4 set in a paperboard-covered soft foam insert (which takes some effort to retrieve).

Below that you have the instruction manual in an envelope along with a warranty card. The tips are stored initially inside the round case, with the cable. But, once the Cadenza 4 is mounted to the cable, you cannot get all of that back into the case comfortably. At least I couldn’t without smashing the tips. A good idea, but in need of a bit of fine-tuning.

That IEM case also seems a bit lower quality than the S15 case. I had a more difficult time screwing the lid back on, and the feel, while good tactility-wise, felt less luxurious.

LETSHUOER includes 6 sets of tips, including a mounted set on the IEM. The two types are vocal and balanced, coming in three different sizes – small, medium, and large.

The balanced tips have longer and thinner stems, making for a well...more balanced approach while restricting openness and the soundstage. The vocal tips are shorter and have thicker stems, enhancing the midrange with a more open sound, while showcasing vocals and adding grunt down low comparatively.

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Build/Fit:

The Cadenza 4 is made from a 3D-printed resin, in a typical teardrop shape, with a larger nub to help with fit. A narrow nozzle helps with insertion, and the overall quality is good with three well-fitting parts. The faceplate shines in silver with the LETSHUOER logo in black on both the left and right sides. The Fit of the faceplate seems off, but when you feel for a gap between the shell and faceplate there isn’t one.

The shell fits nearly flush in my average-sized ears, with no discomfort, which led to long listening sessions. Thankfully there is a dedicated sheath for an ear hook, too. This made the cable lay in a much better position behind my ear, even wearing my reading glasses.

There are minor microphonics associated with the cable, but not as much as some in this category. The cable has a clear plastic rectangular cinch, which works quite well above the burnished silver Y-splitter. The two-wire cable contains 392 strands per cable of silver-plated monocrystalline copper.

As many companies are doing, there are three jacks included as mentioned above. Instead of sliding in, complete with a slot and having a screw cover; the Cadenza 4 only has the slide-in part. But I did not worry about it coming loose since the two parts fit together with good pressure.

The cable laid nicely when unwound, but it did take a bit to do so. I found that if you ran your hand down the cable as you unwound it, the shape immediately went straight.

Combine all of this, and I think the Cadenza 4 fits and functions very well.

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Technology:

The Cadenza 4 contains a new proprietary 10mm dual-chambered beryllium-coated dynamic driver and 3 BA drivers (a single Sonion with dual Knowles drivers) making for a quad-driver hybrid in-ear monitor.

The 50-micrometer 3D-printed acoustic tube aids in fine-tuning the sound, while an electronic 4-way crossover network finalizes the process. Combined, this makes the Cadenza 4 easy to drive with an impedance of 15Ω @1kHz and a sensitivity rating of 102 db/Vrms.

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Sound:

All listening was done on the sources mentioned above in combination to get the most out of determining the synergy of the Cadenza 4.

Summary:


The Cadenza 4 sounds more towards the neutral part of the sound spectrum, with a natural uncolored feel to it, which departs from some of LETSHUOER’s previous offerings. While not bass-shy, it evenly presents both ends to make for that balanced signature. Think “just right” in the realm of Goldilocks

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moar:

Subbass goes fairly low, but without the impact that basshead-oriented IEMs may carry. Quality comes across as neutral. An upright bass instrument adds good girth down low, but more in the manner of coexisting with the overall signature as opposed to a foundation of weight. Since it does not reach as low as others, whose slant is for grunt; the quality of that bass must come across well. And it does. I found no bleed into the mids, which could overshadow or smear the connection. Complex pieces represent very good quality on the lows, not barging into the mids as noted. Good layering and texture to the notes help sort all of the above out, keeping the lows in tune.

The midrange comes with the clarity of notes that fits the overall character. Neutral, but allowing for good weight to the notes, which is aided by quick attack and decay; giving an illusion of thicker notes. While this may seem diametrically opposed, it isn’t due to the succinct nature with which those midrange notes promote a natural response. This aids in providing transparency to the notes and the illusion of a weightier note, which I find quite pleasing. Combine this into a natural-sounding timbre, and you get a thoroughly competent mid-range.

FqWePy9.jpg


One thing I do wish for is a bit more sparkle up top. Coming from me, who does not favor too much in the treble region, this should not be considered a bad thing; only that if the top end had extended more, the overall signature would be presented with a bit more of an open signature; lending space to the whole sound. This should be taken into account only if you prefer a more detailed signature. And here is where that extra bit of extension may have helped define the signature. Bassheads will enjoy this. Those seeking succinct, accurate signatures may not like it so much.

The soundstage comes across as completely average. But in a good way. Layering & Separation is done very well, even with complex pieces. To me, this comes about from the more neutral overall character. This goes to show that even average can come across as excellent. The fault of this? Micro-detail suffers and the precision of notes. But this is not meant to be used as a reference tool; even with the nearer-neutral signature.

OfDGalw.jpg


Pairings:

I found the Cadenza 4 easy to drive due to the impedance of 15Ω @1kHz and sensitivity of 102 dB/Vrms. While this is true, I found myself raising the volume to make for a more pleasing listen to me. Plus, the better the source, the better the Cadenza 4 seemingly sounded.

Having the sheer power of the iFi Diablo2, the Cadenza 4 sounded “best” of the “turbo” setting, while increasing the volume. “Nitro” provided little headroom with which to play, and using Turbo afforded me excellent control of the volume, per each song.

Clear amplifiers such as the Diablo2, or Cayin N6ii mkii DAP showed that with decent power doing the driving, the signature presents more down low while sending alacrity down the stream (better detail presentation).

Using the 4.4mm bal jack on the N6ii mkii, I found the pairing to be delightfully neutral, which is something I do not usually say when dealing with neutral. The level of details coming forth from the pairing made me appreciate how good the Cayin is, even as it moves into the geriatric section of its life.

Using the FiiO CP13 was an odd treat. Reviewing the CP13 for Headfonics I decided to combine the pair. While cassette tapes are coming back into style, there is no denying that the signature is VERY different from digital. I found the pairing worked well, with plenty of volume to be attained through the FiiO. Not the most detailed of the pairings here, I came away with an appreciation that the two could happily coexist together for a good listen.

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Comparisons:

LETSHUOER Cadenza4 ($249) v Shanling MG100 ($159):

Not only have interchangeable jacks become common, interchangeable filters have as well. I did have a strong preference for the bass-oriented filters on the MG100, but the level of detail was still well ahead of the Cadenza 4. I also find the MG100 easier to drive, with a slightly better impedance and sensitivity of 16Ω and 113+/-3 dB @1kHz, respectfully.

That excessive bass does bleed into the mids, but a simple change to the balance filter quells that. Plus, the bleed did not inhibit the overall character of the MG100. The balance filter adds a bit more textural response to the sound as well, plus better detail and clarity.

This will come down to whether you like a more neutral signature or the ability to tailor the IEM to your preferred listening or flavored genre of choice.


LETSHUOER Cadenza4 ($249) v LETSHUOER S15 ($329):

Where the Cadenza 4 goes neutral, the S15 goes smooth and rich. There is no hiding behind the fact that the S15 will not cater to those seeking a reference signature. Maturity, but slower response come about in this signature. To me, this is an excellent choice for jazz with a smooth richness pervading my senses as Red Garland’s “Please Send Me Someone To Love” played. Deep sound from the upright bass is foundational instead of coexisting on the Cadenza 4.

I found the notes to have better texture, but the smooth character overrides this a bit. A thick richness pervades the listen as opposed to a neutral response that is used as a tool rather than engaging. Where the Cadenza 4 allows you to listen, the S15 engages you to relax and enjoy the sound. Quite different.

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LETSHUOER Cadenza4 ($249) v QoA Aviation ($199):

Until the Aviation, I had never listened to a model from QoA. Needless to say, I came away with an impression of a decent listen for a good price. From my Headfonics review, the Aviation “...presents a vibrant, smooth character with an even frequency response. A small peak at 3kHz gives resolve to the upper mid-region.

Another fairly steep peak at the 8kHz region (then drop) adds brilliance in the treble region but without too much peakiness or sparkle. The drop after the 8kHz peak makes for a vibrant, but not overly exuberant, signature
.”

The Aviation is also the most sensitive of those compared at 118 dB @1kHz and a somewhat high (for an IEM) 39Ω impedance rating. It was as easy to drive as the S15 and MG100, which were both easier than the Cadenza 4 (I cannot explain that, using a volume test of plug-and-play of each model into the iFi Diablo2 without changing volume levels).

There is more bass grunt and girth down low on the Aviation, which does bleed into the midrange. Richness pervaded the mids, with a smooth texture to them, which seems set a bit behind where the Cadenza 4 plays, even if I thought they were “powerfully forward.” This shows that the mids in the Cadenza 4 while more forward, present a more neutral flavor, which to me is more pleasing.

I would state that while the Aviation is a bit more vibrant than the Cadenza 4, it cannot match the level of detail coming out of the MG100.

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finale:

I had to stop myself from comparing the Cadenza 4 to the S15 and Cadenza 12 (an extraordinarily good IEM) and judge the 4 on its merit. When doing this, the neutral flavoring comes across as quite competent and appreciated. Many “flavor of the month” IEMs come about with the grace of a used car advertisement in Chicago, aka LOUD!

The Cadenza 4 comes about with an understated accurate neutral tonality to its coloration (or lack of...). I appreciate this aspect and find myself reaching for the Cadenza 4 equally with the S15 when playing jazz. What little microphonics I could hear were easily countered by the sound signature, even if a bit harder to drive than what you might expect. The smooth, forward midrange comes to the front with any good jazz sax solo, making for a wonderful listen.

The combination of jacks affords the user the ability to change signatures a bit, or devices, omitting the need for multiple cables. The focus is then on the sound, where it should be. I find the Cadenza 4 to be a very competent IEM with a good build (which shows 3D printing is much better than even two years ago), looks, and sound to back up those goods.


I thank LETSHUOER for sending the sample and congratulate them on a very competent model.

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cqtek

1000+ Head-Fier
The Controlled Cadence
Pros: Very good tuning, well extended, very pleasant, but controlled and smooth at both ends, with a lusty, melodic, musical, balanced and full midrange.
- Good stage levels, sense of openness, separation and depth.
- Very good unboxing experience.
- Great ergonomics and design.
- Excellent cable with three interchangeable terminations.
Cons: The reproduction of pure, very low-frequency tones is not realistic and there is room for improvement, coming from a dynamic driver.
- This is not an analytical set, the micro detail is not the best.
- It can be a very relaxed sound for those looking for more emphasis on bass or treble.
Introduction

In many ways, talking about Letshuoer is like talking about planar IEMS. And although it is true that Shuoer existed before its famous S12, this planar continues to be a reference within the $100 IEMS, at least in my country. But, I think it would be unfair to only talk about the S12, when the brand founded in 2016 has other great models to its credit, some of which I have had the pleasure of testing, such as the latest S15 planars, the S12 Pro, the DZ4 and the D13. It is clear that the brand does not live by planar drivers alone and this seems to be the reason for the new Cadenza series. The first model in this series to combine dynamic drivers with BA drivers was the Cadenza 12. A 2023 model that uses a 10mm dynamic driver with kevlar LSS diaphragm, together with 11 BA drivers from Sonion and Knowles to reproduce the whole spectrum. Undoubtedly, the Cadenza 12 is Letshuoer's top-of-the-line model, priced at $2100. Fortunately for the medium listener, the Cadenza 4 has just been released. A model with a price tag of $249 that effectively mounts 4 drivers: 1DD + 3BA. It is a 10mm dual chamber dynamic driver, with beryllium coating. It is joined by a Sonion BA driver and 2 Knowles BA drivers. The Cadenza 4s adopt 3 acoustic tubes that are combined with a four-way electronic crossover. The 50μm 3D printed acoustic tubes ensure a precise, smooth and even sound. Meanwhile, the four-way electronic crossover allows precise control of the frequency distribution and significantly reduces phase errors. Once again, Letshuoer collaborates with Heygear Technology to perfect the headphone chassis. The panel is made of CNC aluminium alloy with a matte finish that provides a delicate, textured feel. The cable used as standard is high-purity silver-plated monocrystalline copper with 392 strands. It adopts 90° interchangeable pin technology, which allows the use of 3.5mm SE, 2.5mm BAL and 4.4mm BAL terminations. Let's discover in the following review all that this fantastic new model from Letshuer called Cadenza 4 has to offer.

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Specifications

  • Driver Type: 1DD dual chamber with 10mm beryllium coated diaphragm + 1 BA Sonion + 2 BA Knowles.
  • Frequency Response: 20Hz - 40kHz.
  • Sensitivity: 102dB
  • Impedance: 15Ω
  • Cable material: high purity silver-plated monocrystalline copper with 392 strands.
  • Outer plate material: anodised aluminium.
  • Capsule material: 3D printed resin.
  • Jack Connector: interchangeable BAL 2.5mm, SE 3.5mm and BAL 4.4mm.
  • Capsule Connection Type: 2Pin 0.78mm.
  • Cable length: 1.2m

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Packaging

One tends to think that IEMS in this price range have to come in large packaging. But Letshuoer has created a contained packaging in size that, in turn, is actually very pleasant as an unboxing experience. The Lethuoer Cadenza 4 comes in a grey box whose size is 108x160x81mm. On the front side you can see the brand's logo vertically, written in white letters on the left margin. At the bottom right is the Hi-Res Audio logo and below that, the name of the model. The background of this side is composed of a series of staggered patterns forming various angles to each other, in various shades of white and light grey. On the back are the specifications in several languages, including Chinese and English, the brand name, icons of the specifications the product meets, as well as a warranty sticker. The pattern of white lettering on a plain grey background is repeated. After removing the cardboard, the box remains the same colour and only the brand name and the slogan "Sound Alive" in capital letters can be read in white. The box has a magnetised lid that folds out almost completely. On the top of the box is a sealed grey envelope with a silver sticker. Inside is the instruction manual, the warranty card and a small product certificate. Underneath the envelope is the first level: this is a thick black foam mould covered by a layer of grey cardboard, which contains the capsules. The second level has a grey ribbon that allows it to be pulled out like a drawer. On this level is the classic round box with rubber coating, but this time it is black. There are also the three interchangeable tuning pegs, all in a new black foam mould also covered with grey cardboard. Inside the round box are the final accessories, such as the cable and a disc with the silicone tips. There are two sets of tips with 3 sizes each: SxMxL. The grey tips are made of very soft silicone and have a medium core diameter. They are the balanced tips. The vocal tips are transparent and are wider, both externally and at the core, but are shorter. I must comment that the tips that come as standard with the IEMS are rarely compatible with my morphology. In this case, both sets are very soft and small. I need bigger and stiffer tips. That's why I always use my large tips filled with foam that I prepare myself. This way I can't experience the differences that exist when using one or the other set of tips of this model.
There is no doubt that Letshuoer has found a compromise between the size of the packaging and an excellent unboxing experience, by designing a two-tier box with a bottom drawer. Combining simplicity and cleverness, as well as great materials used in its accessories, both the presentation and the contents are outstanding.

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Construction and Design

As with the previous S15 model, Letshuoer has once again relied on Heygear Technology to create its capsules. With an anodised aluminium outer panel, the capsule has been printed in resin using 3D printing. The capsule design is different from the one used for the S15. Although the final finish is virtually the same, the size of the capsule is distinctly larger. The capsule design of the Cadenza 4 is much more reminiscent of a highly crafted semi-custom capsule. It has a wide and very projected, elongated mouthpiece. Its inner diameter is 6.2mm, while the crown is 6.5mm. There are three holes in them. One has a metal crown that reaches the rim with a greenish textile grid. The second hole has the same crown but more recessed. The third hole is free. The rest of the inner side of the capsule is complex and has a pronounced valley, as well as a shape that seeks to adapt to the design of the pinna, with a pronounced lateral protrusion, as well as a series of reliefs all over the surface. Not even the rim of the capsule is spared from these reliefs and curved shapes. The 2Pin 0.78mm connection interface is fully integrated in an oval plastic plate with gold-plated connectors. Next to it is a small hole. Over the corner you can read the model name "Cadenza 4" and "True Virtuoso", as well as a larger lettering indicating the channel, all in black ink. The outer face is made of anodised aluminium and is reminiscent of the design on the front face of the case, but without the steps. It is in the shape of an African continent. The plate contains a small horizontal border in the upper third and above it is the brand name in dark grey ink. This border goes all the way to the second horizontal third, and from there it bends downwards and slightly backwards again, but also upwards and all the way to the end, but in a more subtle way.
The cable has a pure, shiny, silver-plated, almost white conductor. It consists of two coiled strands of 392 wires of high-purity silver-plated monocrystalline copper. It has an interchangeable 90° angled pin technology. There are three pins: BAL 2.5mm, SE 3.5mm and BAL 4.4mm. The pins combine a cylindrical silver metal part with a more rubbery, flattened part, where the inscribed mark is located. The connection of the parts is stable and durable enough not to worry about. But it is not a screw connection, only a press connection. The plug part of the cable is a metal cylinder with a wide textured ring for better grip. It has a transparent plastic sleeve to protect the cable outlet. The splitter is a rectangular piece, although on one side it has an edge pattern reminiscent of the outer face of the capsules. The pin is also a rectangular piece in hard, transparent plastic that imitates the splitter piece, but only on one side. It fulfils its function very well and the cables slide smoothly inside it, allowing a long-lasting and firm fit. The cable has over-ear guides in the form of semi-rigid transparent plastic sleeves. The sleeves of the 2Pin 0.78mm gold-plated connectors are on square translucent plastic plates and both are of the same shape, like elongated boxes but with rounded corners. They are metallic, matching the rest of the material used in the cable, and have letters written to identify the channel, in a faint dark grey ink. Finally, there is a dark grey Velcro strap with the marking written on it in white letters. The cable, almost white, is very striking for its colour and thickness. Although it does not seem thicker than the one used in the S15, its finish is more remarkable, appearing superior, both in beauty and in final performance.
The capsules have changed from the previous Heygear model. The S15s were simpler, with a flat inner face, a rounded edge, with the cable in one corner. The Cadenza 4 has a much more complex design, with a surface containing many more curves and reliefs, with a more elaborate rim. It is larger, but with more stylised mouthpieces and a much more ergonomic and studied shape.

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Adjustment and Ergonomics

With a larger capsule, wider and more elongated mouthpieces, the Cadenza 4 can be a bit of an ergonomic challenge. Clearly, insertion can be deeper, but the large diameter of their mouthpieces can also impede this. On the other hand, the varying relief of their inner face may pose a challenge for the fit with the wearer's pinna. Depending on the degree of insertion, this aspect can be more or less compromised. In my case, as I usually use foam-filled tips, the insertion is superficial and the capsules do not touch any part of my outer ear, except for the rim, of course. The anchorage is perfect and although its size is bigger, it fits very well in my ears. The light weight and good relationship with the cable makes the whole thing very comfortable, occlusive, firm and durable, without rotation. As usual with the use of my home-made tips, the soundproofing is high, thanks to the fact that both its size and its internal foam filling tend to flood all the walls of my ear canal.

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Sound

Profile


I think the Letshuoer Cadenza 4 has a smooth, decreasing W-profile, where each peak is polished and controlled. It starts with an emphasis on the sub-bass that gradually drops towards a midrange, the first half of which is very linear. From 1khz onwards there is an equally smooth rise and fall of the sub-bass, building up to a small plateau in the upper-midrange. At the entrance of the first treble, the curve decreases slightly again to maintain itself until the air zone, where there is a subtle upturn. As can be seen, I have done no more than describe a W where each peak and valley decreases in distance from each other. While it is true that none of the peaks are pointed and they are more like plateaus, the valleys are wide and flat. On the other hand, it is a balanced profile, not in vain the whole curve moves in less than 10dB from 20Hz to 14kHz, something that gives an idea of a quite successful homogeneity. But it's not just homogeneity as such, the Cadenza 4s have adjusted their profile to offer some very calculated emphasis at key points, while maintaining the energy level to harmonise their sound as much as possible. Thus there is a gently tapering sub-bass that achieves depth and a certain level of punch, a subtly disconnected and autonomous first mids, and upper-mids that are emphasised in a very calculated and restrained way, so that they never sound harsh or overly present. Finally, the highs have been nuanced to a control zone that extends with a good level of energy, but never projecting into a piercing or piercing sound. Without a doubt, I could conclude that the Cadenza 4's profile is based on a controlled cadence.

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Bass

The Cadenza 4's bass is concrete and deep, possessing a subtle elasticity, and is quite compact and restrained. Even so, they possess a certain level of energy and presence, enough to impose a slight authority, delivering a controlled level of energy and power. However, all this goodness shown in the musical section comes crashing down in the very low-frequency pure tone test. Guided by the sound, I expected the LFO (Low Frequency Oscillation) reproduction to be more exemplary. On the contrary, this is not the case. The lower pure tones have a clear oscillatory and vibrating character, very typical of an unfiltered BA sonority. There is hardly any physical or sensitive sensation and a coloured, sonorous, off-tone vibration prevails. Realism and naturalness appears from 40Hz onwards, but the colour still anticipates the energy level and classic behaviour emitted by a simple dynamic driver. This is not the first time this has happened in DD + BA hybrids, even in this price range. But, having tested the Cadenza 4s on my usual bass tracks, I didn't expect this behaviour to be far from what a good dynamic driver emits.
It is in the other test of dirty, complex and unfiltered bass that the Cadenza 4s show these less advantageous characteristics. The deeper notes lack the necessary physicality, they feel coloured and infected with that vibrating, undulating aspect. This means a bass that is shallower and tends to vibrate more than it should, complicating the accurate and realistic tracking of very raw, fast and powerful bass lines. Still, the Cadenza 4s manage to retain a certain level of ability to layer and separate them, especially when it comes to separate bass. When the hit is well recorded, the Cadenza 4s respect their tone and deliver remarkably accurate reproduction. But it is when the bass is more linear, layered, continuous, sustained, mixed and dirtier that this less pure behaviour comes to the fore. In fast electronic music, with marked bases, it does not do badly, it is even when it shows its best side. But, when electronic music veers towards genres where the lows make up the melody, generate an ambience or form a dark and dense base, that is when certain anomalies appear that are appreciated when compared to dynamic drivers that have a more realistic behaviour.
It is worth noting that the overall bass performance is quite positive, as in conventional music reproduction, many of these faults are not noticeable, and it even sounds very good, remarkably controlled, with a slight level of pleasant texture and a good level of authority, precision, speed, both in the propagation and in the gathering. However, this does not detract from the fact that, at the limit, there is a certain behaviour that is not entirely correct. There are certain nuances that show that the execution is not canonical and that there are impure aspects in the sub-bass. Finally, these more negative aspects can be enhanced or minimised depending on the source used. And that is something that can be common, but in these cases it is usually more critical. A pity.

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Mids

The frequency response of the Cadenza 4 is too particular to be the product of coincidence. I think it has clearly been sought and found. The first half of the midrange is a totally flat valley from 200Hz to 1000Hz. Then, there is a gentle rise of 8dB up to 2.5khz and it becomes a plateau up to 4kHz, to enter the treble in a descending, but very slight, way. First of all, what I like most about the midrange is that you don't notice a complete drop. Admittedly, I'd like a little more body between the transition between bass and low-mids, to gain body, physicality, density and fullness. But there is not much to be missed at this stage. It is true that it is observed at a light half-distance and that this first part is not the protagonist, but there is also a good degree of presential authority. The male voices are well represented, but they don't have as much flesh as I would like to feel and I miss a more robust base. In reality, the voices are rendered full if subtly lean. Their timbre is very correct, very natural, highly pleasing. As a whole, the male voices are very neutral, both in presence, distance, demeanour, sonority and timbre. That medium is synergetic and the overall value is superior, thoroughly enjoyable, elegant and suitably rich, but without overdoing it so as not to lose the value of that neutrality. The rest of the instruments based in this first half are no more prominent and the result is an area that sounds very good, but remains gently removed from the main focus. But the blending of all the elements is very complete and, in this way, the musical reconstruction in this first phase reaches more transcendental heights in the overall result of the Cadenza 4's sound.
The musical mood of the midranges is more creamy and milky than analytical, despite the remarkable resolution of the drivers. Neutrality also shows through in this respect. The sound is rich, musical, not overly lush, but elegant and smoothly rounded. It is not a polish that loses resolution, but a harmonious continuity that is completely cadenced. And in this respect, this model could not be better named. No one should expect midranges with totally fast transitions, with exaggerated dynamics. There are dynamics, yes, and very good ones, but at their own pace. Undoubtedly, the Cadenza 4 is designed to be enjoyed little by little, over the hours. And that is also thanks to their upper mids. There is nothing random in this aspect. The second half of the mids has been lifted for clarity and transparency, but kept sweetly neutral. It is never a dark sound, but never completely bright either. In this way, the timbre remains very realistic, the sibilance tends to zero, the transparency is remarkable and the brightness concrete. It is clear that there is more emphasis on the female voices and they have that flesh and body that I miss in the male voices, as well as having a more leading presence. But the correctness of timbre is still maintained in them, only their harmonic richness is superior, as is their closeness. It is worth noting that the plateau of the upper mids can also harbour some subtly more aggressive joy at times. At that point, the sound is not as creamy and liquid in this second phase. But it is also comforting to find some more sparkle and verve in the sound to raise the tension.

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Treble

I would put the Cadenza 4 in the category of extended but energy-controlled treble. Somewhat distant from the level of extension and amount of energy that the brand's own S12 planars have, the Cadenza 4's treble has been carefully and neatly controlled in brightness, to maintain that neutral, creamy sound. The good thing is that the treble feels natural, slightly muted and rounded, but maintaining a high amount of overtones which makes them quite full in this respect. The timbre is logical and the sonority very adequate thanks to the linearity of the treble. There are no control zones that omit frequencies and the upper zone extends generously until it enters the air zone, where its inflection point lies. Even so, there's a clear amount of this air throughout the sound range that helps to maintain separation and distance.
All in all, this is a mellow and well extended high end, which can be enjoyed individually thanks to the good definition of the high notes, despite being restrained in brightness, energy and emphasis. Despite this, I don't find the treble to be nuanced or overly polished. And in that respect I think the Cadenza 4s have just the right balance: restrained but sufficiently explicit treble, which can both be enjoyed individually and can be at the harmonic service of the lower frequencies. Addictive for lovers of balanced, neutral and descriptive treble. But those looking for crisp treble will not find it here.

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Soundstage, Separation

The sound of the Cadenza 4 is surprising in its open, expansive character, spaced in a concrete and separate way. Without being an analytical sound, there is a good sense of dispersion of the notes that gives the sound a sensitive, but not expansive separation. It is not a vaporous or volatile perception, but the sound is more concrete, precise and meticulously executed. The weight of the notes is appreciated, also their whole profile and shape. This gives a clear sense of definition and a fairly high level of resolution. But these are not hard, fully marked profiles. And, this is where the more liquid and creamy aspect of the Cadenza 4 comes in, accompanied by that very mobile dynamic feel, which gives a vibrant impression that adds speed to the sound, so as not to get lost in an overly fluid continuum. The result is a defined and musical sound, which does not reach a resolute limit, but is sufficiently broad, separate, rich and complex. In this sense, the micro detail is not stellar, and can even feel unobtrusive. But, both the movement of the notes and their slightly bombastic execution result in a richer, more nuanced, richer and fuller musical effect. The Cadenza 4s respond well to analytical sources to demonstrate their high level of resolution and, in this respect, the level of micro detail depends on it. But I insist again on the neutrality of this aspect, as the musicality prevails over the high level of resolution.
The scene is wide, without being surrounding, as I said, it is open and extensive. There is a remarkable level of depth, without going to the extreme, very good height too, and a representation that exceeds 180º frontally. Laterality is obvious, the stereo feel is pronounced. The Cadenza 4 is an excellent IEMS for watching movies with lots of sound effects, thanks to its remarkable spatial positioning, speed of execution, precision and definition. Thanks to space, distance and a fairly dark background, the good analytical sources allow very vivid sensations to be extracted with these IEMS.

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Comparisons

Tanchjim Kara


They are IEMS with a configuration of 1DD 9mm with PEEK+PU diaphragm, 1 composite BA driver for midrange and high frequencies Sonion 2389D, 1 composite BA driver for ultra high frequencies designed by Tanchjim. In conclusion 1DDD+4BA as both BA drivers are composite. The current price is 179$.
They are smaller and lighter, but that is no guarantee for better ergonomics. In my case, the fit of the Kara is a bit more complicated because of the size of the mouthpiece. It is ergonomic, but the insertion is not as occlusive as with the Cadenza 4. The cable is much better on the Letshuoer, with the triple termination and thicker conductor.
The Kara's are distinctly harder to move, needing more power to perform at the same level.
The profile is similar but more reduced at the ends. The Kara's have a light sub-bass, while the Cadenza 4's are slightly emphasised. On the other hand, the Cadenza 4 has more treble extension and more air.
Of both, I have commented that in the pure tone test the result has not been as desired and there is a clear vibratory character more typical of BA drivers than dynamic drivers. This detracts from a deeper and more natural character. The Kara's focus on the mid-bass and feels more coloured and less realistic than the Cadenza 4's. Furthermore, the Cadenza 4's have a darker timbre and the performance is faster, more concise and tighter, while the Kara's are more boomy and elastic.
In the midrange you feel the splendour, clarity, separation and openness of the Cadenza 4, while the Kara is more muted and more nuanced. The notes have more sparkle and definition in the Cadenza 4. However, there is a similar neutral behaviour in both models, with some distance between the two models. Even in the level of resolution and micro detail they are similar. But the Cadenza 4's greater treble extension, its greater separation, makes the micro detail subtly more visible. There is a slight difference in the treble, with the Kara offering a little more initial energy. But I find the Cadenza 4 more expressive and descriptive in this upper band.
The better separation and open feel of the Cadenza 4s makes their soundstage a little bigger.

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Simgot EA1000

Currently priced at $219, the Simgot EA1000s consist of a 2nd generation 10mm dual-magnet, dual-cavity DMDC™ dynamic 10mm driver plus a 6mm passive radiator. They are made of metal and the design is smaller, fitting my ears quite well. The fit is somewhat freer, while the Cadenza 4's don't have a degree of freedom, being thicker and larger. The Simgot are heavier, but they are quite comfortable as well. The cable is similar in both, consisting of two strands of similar thickness. But the Simgot's don't have 3 interchangeable ends, only 3.5mm SE option. Very good fittings on both, better unboxing experience on the Cadenza 4. But the Simgot have three filters to make a small adjustment to their profile. Despite that, the three profiles of the EA1000 are brighter than the Cadenza 4. The Simgot moves quite easily.
Switching between the two models requires some effort because they sound more different than you would expect from the frequency responses. There is a lot of energy, verve and sparkle in the Simgot, they are quite a bit clearer and also more analytical. But they can also be more abrupt and penetrating. The Cadenza 4s are more relaxed, creamy, dark/neutral comparatively speaking.
The behaviour is very good in the very low frequency pure tone test in the Simgot. This generates a low end that performs very well in any terrain. The bass is more extended, somewhat more physical and sensory. Musically speaking, things even out. I like the Cadenza 4's bass tuning, but I prefer the consistency, realism, naturalness and execution of the Simgot's bass.
In the midrange there are many differences. There is a little more body in the first half of the Simgot mids, but the big difference is in the higher energy level of the upper mids, as well as their more explicit, descriptive and analytical level of resolution. The Cadenza 4s are more balanced and that gives them a midrange that feels fuller and more complete, less polarised, more homogeneous. They are creamier, calmer and more musical. The equal energy makes the midranges denser, richer and closer. Simgot offer more detailed information, but sound more explicit and splashy. That upper-mids behaviour carries over to the EA1000's treble - more energy, more sparkle, more brilliance, more sparkle, more presence, generating a crisper, more expansive treble. The Cadenza 4's highs maintain the calmness of the entire profile.
As a good analytical profile, the Simgot's offer more obvious micro detail. They feel detached, open, expansive and volatile. But the Cadenza 4s are broad and enjoy good depth. Certainly, the presentation of the scene is different in the two models. The Cadenza 4's offer a more concave, oval scene, with good laterality, which transcends 180º. The EA1000s are more gaseous, surrounding and sparkling, the effects feel closer.
Undoubtedly, they are two different beasts in many ways with a distinctly different sound.

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Conclusion

I think that Letshuoer wants to stop being known only for its planar IEMS and the Cadenza series is a clear proof of that. Without having tried the Cadenza 12, the Cadenza 4 is a set of IEMS with, of course, 4 drivers (1DD + 3BA) that seeks a tuning already marked by the DZ4, but with more extension and neutrality. Again relying on the collaboration with Heygear Technology, Letshuoer has created an IEMS whose design base continues where the S15 left off, but with a more semi-custom shape. The idea of packaging, the round box, the thick, silver-plated cable, with 3 interchangeable terminations, is still there. But above all, it persists in the search for a very musical, highly pleasant, natural, realistic and balanced sound. Well-presented and deep in the lower range, smooth, restrained and well extended in the upper range, the Cadenza 4 shines with a rich, descriptive, separate, large, harmonious and cadenced central range, as the name suggests. Without a doubt, the sound of the series is marked from the name and Letshuoer has hit the nail on the head with the Cadenza 4. Arguably one of the best IEMS in its price range, if you are looking for a secure and captivating tuning.

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Sources Used During the Analysis

  • Aune M1p.
  • EarMen Angel.
  • EarMen Colibri.
  • Burson Audio Playmate 2.
  • Aune X8 XVIII Magic DAC + EarMen ST-Amp.

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Letshuoer offered me this model, in exchange for writing an honest review. I want to make it clear that all my opinions written in this review have not been conditioned by this fact, nor will I ever write anything that I do not really think or feel here. I will only write about my personal opinion in relation to the revised product.

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Purchase Link

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You can read the full review in Spanish here

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MidnightSun
MidnightSun
I enjoyed reading this very much. Thank you.
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cqtek
cqtek
Ohh, thank you very much!

ICYGENIUS

New Head-Fier
LETSHUOER CADENZA 4 review of hybrid iem by ICYGENIUS 🎧
Pros: Very competent and accurate neutral tuning
A truly audiophile set for $249
Great accessories
Powerful and massive bass with a neat transition to the mid-bass region
Mid frequencies neutral are very pleasant and not tiring
High frequencies reveal all the details well and do not hide micro nuances
Excellent attacks and transients
Technical skills at a high level
The sound stage has excellent localization and a fairly wide construction
Cons: For me no.
Introduction!
Hello friends!
Today in our review we’ll talk about hybrid headphones from Letshuoer worth $249!
They come in a nicely designed medium-sized box that contains the company logo and the name of this new Cadenza 4 model.
And on the back are the technical specifications, and a ten-millimeter dynamic driver, one reinforcement driver from Sonion and two armature drivers from Knowles are responsible for the sound, and the sensitivity is 102 decibels and they received 15 ohm impedance.

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Let's take a look at what's included!
And the first thing that greets us here is the envelope inside which is
- Warranty card.
- Product Certificate
- Manual for use

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And here are the headphones themselves, which in my opinion look great.
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The front panel here received a metal insert with an abstract design and the company logo, and the cups themselves are made of very pleasant matte plastic, exactly the same as that of the Letshuer S15.

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They also have a standard 2-pin connector that runs straight along the body and next to it there is a single compensation hole!
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And here we were given the channel markings and additionally the name of the Cadenza 4 model.
But the sound guide here is quite elongated with a good rim for better fixation of the ear tips, and has three holes where the filters from Knowles are very clearly visible.

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With the fit and ergonomics, everything is in perfect order here, as is the case with my favorite planar headphones S15, the Cadenza fits just as perfectly in my ears, nothing presses anywhere, and in fact we have excellent sound insulation.
Accessories!
Now let's look at the accessories.
- Round black box made of pleasant soft-touch plastic.
- A truly excellent cable with conveniently formed earhooks, 2-pin connectors, and the ability to replace the plug with any of the three.
Both 3.5 and 2.5, and balanced 4.4 and they are all angular.
- And the final touch is a set of high-quality ear tips in a convenient organizer.
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How do these headphones sound?
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And now, friends, we have come to the most important part of the review, namely the analysis of the sound of these hybrid headphones, and here everything is actually interesting and I think it is correctly designed from the point of view of the approach to tuning, this is a perfectly finished pleasant Harman tuning, dim in presentation, with boost low frequencies at a noticeable 7 decibels, with a very precise approach to mid frequencies up to a neat and, most importantly, not excessive amplification of the upper mid region, but the high frequencies here are simply beautiful, they received a good expansion up to 14 kHz and after that they have a neat, smooth roll-off familiar to us.
Low Frequencies:
And of course, low frequencies are presented here as fundamental and I have no questions about them at all, the sub-bass region here has excellent weight and depth and the very basis for bass formation, and midbass simply perfectly complements this whole powerful, extremely punchy picture due to its clearly defined attack and an obvious very vigorous punch, but this model is still not for bassheads, but I’m sure all the other guys will be happy here, since here there is literally an ideal combination of the amount of bass and the quality of texture reproduction and clear audibility of saturation and distortion in guitars, which in my opinion is no less important, and I hope you agree with me.
Mid Frequencies:
And the mid frequencies in these headphones are presented as smooth and neat without any excessive sharpness and brightness and obvious emphasis on the vocal part, since the bass and the upper mid area here are exactly as I like, namely in parity due to which I immediately liked this familiar neutral a delivery that has the right amount of heat with the excellent necessary transparency so that everything sounds more separate and accurate in space.
But both male and female vocals here sound super richly weighty with excellent resolution and, most importantly, with a sufficiently large amount of air, which definitely had a positive effect on the better disclosure of this range and significantly helped in all that is called the glory of swinging the vocal part and instruments so as not to sound like it is dully closed and dark.
But for the snare drum, respect from me because of the slight emphasis on the upper middle and generally neutral tuning, I like it exactly like that, just slightly emphasized in the mix and does not stand out against the background of everything else, but simply neatly makes its work leave behind good aftertaste from reverberation.

High Frequencies:
But at high frequencies there is a very neutral, very calm and precise approach to tuning, when the manufacturer does not have a goal to make this model pretentious in this area and add some unnecessary fake detail by amplifying this area, which is especially common in inexpensive headphones,here we have the opposite, everything was designed with taste and audiophile verified, which is actually not surprising since the Letshuer company has definitely developed experience in this regard and they understand what real audiophiles need, since it seems to me that this model is simply ideal for them.
Since there is also excellent detailing with a slightly warm presentation, slightly softened at the edges, with excellent technicality and simply excellent additional shine on the cymbals, that is, they do not take much attention here, but simply accurately and focusedly complement the composition without excessive intrusiveness and sibilance, and let me answer right away, there is no metallic color or reinforcement overtones here, which definitely pleased me and I think I should tell you about it.
And it is also worth noting that there is simply an excellent bias in micro and macro details, so all the percussion and various small sounds will be like the palm of your hand, and the very long tails from the reverberation here do not end very abruptly, but on the contrary, have a very long continuation.

My conclusion on this headphones:
Letshuoer Cadenza 4, without any doubt, is a very pleasant audiophile and properly configured hybrid headphone that I liked from the first listen, and given its price, it represents very powerful competition and is fighting back against other models right now.
Official Letshuoer Site for buy: https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor

I will be glad if you subscribe to my YouTube channel and watch this full review on LetShuoer Cadenza 4!

Dileepmonk

New Head-Fier
LETSHUOER Cadenza 4 initial impressions
Pros: engaging Midrange.
good tonality & timber.
note weight.
smooth signature.
bass decay.
coherency.
Cons: mid-bass quantity
treble extension (knit pick)
shell design & built (I mean plastic shells feels kind of cheap and looking average)
Disclaimer:
This is my friend unit, impressions are strait otta what I felt and I spent less time with them so you can take it easy.
My preferred sound:
neutral sound but with musical presentation(this describes itself not nuetral :) ). slight emphasis on bright or warm both works for me
equipment:
spinfit w1 tips and cyan ru7 dac/amp

sound:
soothing, melodic, musical presentation
bass:
It has nice sub-bass with good presence of rumble, mid-bass is adequate (little less compared to sub-bass) but
that doesn't mean it lacking either it is sufficient to balance other frequencies.
and I do find bass is little mellow/soft slam not the tightest, but attack/decay is still good though.
kick drums bass reproduce good however I would have appreciated if it has more slam.

Mid-range:
Not sure where to start but I found midrange to be one of the best I’ve heard in the price point.
vocals are clean and little forward, everything sounds engaging. male vocals got that weight and lushness, and female vocals sounds exquisite with crispness
guitar, violin, Saxaphone and trumpets sounds phenomenal with good layering.
had plenty of room for both vocals and mid-range instruments.
All if I can say about midrange in simple words, it sounds very emotional.

Treble:
treble is inoffensive/little relaxed yet still has good energy without any splashiness.
I played some busy tracks and it handled all of them without any struggles and never sounded grainy at all

Technicalities:
I wouldn’t say that the soundstage of the Cadenza 4 is huge but there is definitely enough room for all instruments.
It is above average, height, width and it has very good depth though
it has good micro and excellent macro details.
it has excellent tonality and timber.

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SenyorC

100+ Head-Fier
My favourite tuning from the brand yet!
Pros: Build, aesthetics, accessories, performance, tuning...
Cons: Some tracks can be a little too spicy with the included tips...
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TLDR version on YouTube: TDLR - Letshuoer Cadenza 4

The Cadenza 4 have been sent to me directly by Letshuoer for me to try them out and share my opinions in this review. Letshuoer have not made any specific comments or requests and I will do my best, as always, to be as unbiased in this review as possible.

You can find the official page for the Cadenza 4 here: https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor

As with all links I share, this is a non-affiliate link.

To avoid being repetitive in my reviews, you can find all the info about how I create the reviews, equipment used, how I receive the products and how to interpret my reviews by visiting: About my reviews

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Intro…

The Cadenza 12 was released as both the flagship IEM of the brand and the first in what was said to be a series of IEMs, the Cadenza. This was early in 2023, with a prototype making its rounds at Canjam quite a few month before that. While I didn’t get to spend a lot of time with the Cadenza 12, I did get to try it out and I have to say that it was my favourite IEM from the brand, although a little bright.

A year later, Letshuoer presents us with the second IEM in the Cadenza line up, this time at a much more affordable level (for most of us), priced at under $250, or $229 for those who pre-ordered, which is around 230€, that is a rather large difference from the 2000€ price tag of the flagship model. While the Cadenza 12 featured 12 drivers, the Cadenza 4 coincidentally (or not) features 4 drivers, that are a dynamic driver plus 3x balanced armature drivers.

So, let’s take a look at what we are getting from the brand for the much more pocket friendly price point of their new model.

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Presentation…

The packaging and contents of the Cadenza 4 are certainly nothing to complain about in the price range, in fact, they are very similar to the presentation of the S15 that I reviewed not long ago and comes in at almost $100 more expensive.

The same grey outer sleeve, featuring just the make and model, with some basic specs on the back, slides away to reveal an even simpler flip top box in the same colour with “Letshuoer - Sound Alive” on the top in small white letter. This outer packaging is simple and elegant.

The flip top box is held closed with magnets and opens in the same “jewelry box” type way as that of the S15. There is a top layer, covered by a grey card envelop containing the user manual and other documentation, which is removed to reveal the IEMs sitting underneath.

The bottom half of the box is a slide out drawer accessed from the front that contains the rest of the accessories, which are a black screw top storage/transport case, the cable with interchangeable connectors, 2.5mm, 3.5mm & 4.4mm connectors for the cable and the disc style tip holder containing “balanced” and “vocal” tips, 3 sets of each.

The only real difference between the presentation of the Cadenza 4 and the S15 is the colour of the cable and the colour of the “vocal” ear tips, which are grey rather than blue.

I have nothing but praise for the presentation and accessories included with the Cadenza 4, making it a nice box opening experience and giving a feeling of a set that has been cared for.

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Build and aesthetics…

While the Cadenza 4 do share a similar shape to the Cadenza 12, this is as far as the similarities go in build. Where the flagship is a completely metal shell, the Cadenza 4 opts for a 3D printed shell with a CNC machined faceplate in aluminium with a matte finish. The shells are white which leads to a very elegant looking set of IEMs that are not overly shouty but look, and feel, to be of good quality.

The 3D printed shell also helps to reduce weight, with the Cadenza 4 being a very lightweight and comfortable IEM, at least in my ears.

The included cable, stated as being a 392 strand silver plated copper, matches the aesthetics of the IEMs, with white and matte aluminium hardware that also matches the aesthetics. While I am someone who prefers fabric covered cable personally, there is no doubt that the included cable is of good quality and, as it includes all the termination options you may need, it is a perfect match for the IEMs.

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Sound…

All tracks mentioned are clickable links that allow you to open the reference track in the streaming service of your choice (YouTube, Tidal, Qobuz, Spotify, etc.)

I am not going to make any comparisons in sound between the two Cadenza models as, on one hand, they are in totally different leagues, and on the other, I only briefly listened to the 12 in show conditions last year, so I cannot faithfully make any comparisons.

I will say that this is the 5th set of Letshuoer IEMs that I have reviewed, having tried a fair few more, and that each of their models has a different flavour to it, none of which I have hated. In fact, I have quite liked them and the Cadenza 4 is no exception. In fact, it may actually be my favourite tuning from the brand yet. It is certainly not perfect, to me at least, but the issues that I do find are fairly small and are lost in the overall performance of the IEM.

Anyway, I am getting ahead of myself, so lets go through my usual steps and start off looking at the graph in comparison to my personal preference target:

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Before getting into the specifics, let me say that I found that I preferred the “Vocal” tips (the grey ones) for the Cadenza 4 and those are what I have been using for my detailed listening in this review. There is a sensation of more bass with the “Balanced” option but I found that the bass with the “Vocal” tips was plenty for my tastes.

In the subbass range and focusing first on “Chameleon”, there is enough rumble in the lower frequencies to appreciate the madness of this track, with a nice deep extension. However, the subbass is clean and not really boosted too much (enough for my tastes but maybe not enough for others that prefer more rumble), keeping this articulate a giving a very nice presentation of these lower ranges.

With “No Sanctuary Here”, which is not as overpowering in the subbass department, I find a very nice balance between subbass and midbass, with no real emphasis on either of them, with the low end of this song sounding very clear and decisive.

Moving into the midbass zone and using my midbass fatigue track “Crazy”, there is no sensation of the low end reverb becoming overpowering. It is noticeably there but does not hijack any of the surrounding frequencies, allowing the guitar to present those low end notes without becoming overly boomy.

While the midbass may be a little lower in quantity than many will expect, I find that it is really well balanced and does not give the sensation of missing any warmth in bass guitars, such as in “Elephants on Ice Skates” or in older rock tracks that usually benefit from a bit of extra warmth, such as “Whole Lotta Love”, where the bass guitar has a tonality to it that I find both pleasing and correct, at least to my ears.

Throughout the whole of the bass zone, details are good and I find they get even better as we move into the midrange of the Cadenza 4. In very simple tracks, such as “Happens To The Heart”, the details of the track, such as the breathing and slight vibration of instruments, are easily appreciated while the vocals remain full. In busier tracks, such as “The Room” by Ostura, the Cadenza seemingly keep up without any issues, again letting the details of each instrument shine through but without them being overly upfront.

As we climb into the upper mids, there is plenty or presence for both vocals and instruments, although some tracks can come across a little harsh in this recording. For example, “Crazy” that I mentioned earlier, can have a little too much emphasis on the vocals of Daniella Andrade and even a slight hint of sibilance. This is reduced by switching to the balanced tips, which moves the emphasis away slightly and places it a bit more on the lower ranges. However, it is not terribly harsh, unless you are someone sensitive to the 2.5 to 3.5k region, and I personally prefer the response of the “Vocal” tips.

As we move into the higher regions, there is a nice sensation of air and extension which maintains sibilance in tracks like “Code Cool” at a point I would consider neutral. In other words, it does not add or subtract sibilance to/from Patricia Barber.

The treble extension may not be the most extended treble out there but Letshuoer have done a good job of balancing the treble, allowing it to sound open and airy without sounding overly emphasized, harsh or too bright.

I already said that details are good throughout the whole range and this is added to a nice sensation of space between layers of vocals and instruments, as in the recording of “Strange Fruit”, where background details are noticeable and spacing between the vocal layers are well defined.

I wouldn’t say that the soundstage of the Cadenza 4 is huge but there is definitely enough room for instruments to spread out, although I find that in “La Luna”, the rear left guitar is pushed slightly more left and less back than on other sets. This doesn’t make for a worse presentation of the track, just different.

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Conclusion…

The Letshuoer Cadenza 4 are a very impressive set of IEMs. As I mentioned earlier in the review, they may even be my favourite set from the brand so far. There are certain tracks that can become a little hot in the upper mids with the “Vocal” tips but this can be remedied quite well with the “Balanced” tips. I found that I could enjoy them even more with a couple of other aftermarket tips but I usually don’t go into aftermarket accessories in my reviews and try to focus on the included.

For the 230€ price point, you are getting a nicely built set of IEMs, that sounds good, performs well and is also presented in a way that I would say is above the majority of the competition in packaging and accessories.

These probably won’t be the correct choice for those looking for a bassy set of IEMs but for those who are looking for a good, balanced and well performing set of all-rounders, the Cadenza 4 are a very good candidate.

__
As always, this review is also available in Spanish, both on my blog (www.achoreviews.com) and on YouTube (www.youtube.com/achoreviews)

All FR measurements of IEMs can be viewed and compared on achoreviews.squig.link

All isolation measurements of IEMs can be found on
achoreviews.squig.link/isolation
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David Haworth

Previously known as J Weiner
Letshuoer Cadenza 4, True virtuoso
Pros: Beautiful and musical
Excellent balance across the sound spectrum.
Comfortable and easy to drive.
Excellent modular cable
Cons: Some may find its resolution and details less than other contenders in this price point.
L shaped connector (My dislike)
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About Cadenza 4.

Letshuoer, the parents of the hugely popular planar IEM the S12 have a new baby for us.

Letshuoer provided this review sample to Audio Reviews Downunder for our honest assessment, and we would like to thank them.

Cadenza 4 is a 1 DD 3BA hybrid. The company also has the Cadenza 12 which is a 1DD 11BA flagship IEM. Cadenza definition: Technically brilliant sometimes improvised solo passage toward the close of a concerto.

In the box we have the IEMs which I find understated and elegant. A lot is made of the look of an IEM but once they are in your ears…out of sight, out of mind!

The cable is just great, Soft and substantial with a great feel, left and right marked pin connectors and modular at the other end with the three usual sized male connectors. This is one of the first cables I have not been tempted to change with some of my collection. Also included is a hard plastic round case with a screw cap. Solid and durable it also feels quite soft and tactile. Just don’t let the dog get hold of it!

The supplied tips are average and below par compared to those supplied with the dearer S15 planar.

The fit of the Cadenza works well for my ears. The body is molded and shaped to the ear cavity as opposed to a simple cone shape. (It is similar to the Kinera range) This gives me a good fit with my ear shape and has the advantage of good noise isolation.

Drivability was good. I used my Hiby R3 Saber DAP with high gain and while a volume level of 36 (which is average for an easy to drive IEM) gave a good sound level, I found the Letshuoer scaled well when I boosted the volume into the 40’s. The music grew in power and grandeur without any corresponding harshness or distortion. Similar to the way my Hidizs MP145 planar performs.
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The Sound

Remember these are my impressions and may not relate to all ears or ear canals!

When you first listen to Cadenza 4 you should be impressed by the superb balanced and musical presentation. This set is the best hybrid I have spent time listening to this year. Every part of the sound spectrum is presented so correctly that you just get lost in the music and forget to analyze! In this way it compares favorably to my number one set, namely the Hidizs MP145. Usually, I keep the MP145 tacked away when I am assessing a new IEM but in this case the Cadenza demanded “get the Hidizs out…I can take it! “
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Starting with the bass, the kick drums do kick with a visceral punch that you can feel. Drumsticks tapped on the side of the snare are tactile and realistic. Sub bass is omnipresent in just the right amount without overpowering the Mids. Bass guitars have weight and depth and upright basses sound deep and realistic with real gravitas.

The midrange is spacious and uncongested with good tone and some warmth. Vocals are presented just right, neither to forward or recessed. Acoustic guitars sound realistic and detailed. Female vocals are rather delicious, natural and captivating. Male vocals have correct timbre and tone to my ears. My most problematic close miked vocal tracks that can sound harsh and troubling with some tunings, survived analysis nicely.

The treble has energy and clarity and is never overdone. Once again, we get back to the balanced sound of the Cadenza. Sure, it could have more sparkle, but would it dominate the mix? To me, it sounds just right.

Soundstage and technicalities now. The soundstage has good width and depth and I rate it as above average. Imaging is very good with Cadenza and placement of instruments within the soundstage is easy and accurate. Detail retrieval, while not TOTL is also adequate to my ears with plenty of small nuances and minutiae audible. Put it all together and you have a seamless symphony of sound.
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To sum up.

Did Cadenza 4 surpass my Hidizs MP145 as my favorite? Close but no. I still love the planar. But the Letshuoer takes it place as one of the best balanced and musical listening IEMs I have auditioned. It gets my strong recommendation
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Ceeluh7
Ceeluh7
MD Rohit
MD Rohit
Nice job brother 👏

Headphones and Coffee

Previously known as Wretched Stare
Safe smooth one
Pros: A safely tuned IEM with no sharp edges to the sound, built light and feels sturdy.
Balanced sounding with almost neutral mid-bass, average soundstage and details.
Good accessories.
Cons: Not the most revealing IEM, looks are plain as with most Heygears IEM.
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The Letshuoer Cadenza 4 is an intriguing set of hybrid in-ear monitors (IEMs). Let’s dive into its specifications and features:

Price: The Cadenza 4 is priced at $229.
Design and Unboxing Experience:
The unboxing experience is classy, reminiscent of the more expensive S15 model.
The earphones come in a multi-level box with a magnetic clasp.
Inside, you’ll find a plastic travel case, a high-quality cable (made of high-purity silver-plated monocrystalline copper), and various eartips.
The earphones themselves are made of 3D printed resin with a CNC-milled aluminum faceplate, finished in a matte texture.
The design ensures a comfortable fit for the average human ear.
Sound Quality:
The Cadenza 4 aims for a non-reference / non-offensive sound with a deep but balanced sub-bass rumble, tame neutral Mid-Bass and smoothly detailed highs with a fair extension. The Midrange is unique as it has a forward but centered placement and while not the most detailed it has a very neat response with a thinner than average note weight but still has a nice warm and rich sound I find pleasant.
Soundstage is slightly above average in size and has decent but average imaging.
It uses a four-driver array for its frequency response.
Drivers:
10mm beryllium-coated dynamic driver (DD): Provides natural sound and spacious low-frequency reproduction.
1 Sonion balanced armature (BA): Contributes to the overall sound signature.
2 Knowles balanced armatures (BA): Enhance clarity and detail2.

In summary, the Letshuoer Cadenza 4 offers an enjoyable and safe sound quality, with very good accessories at a reasonably accessible price point, making it a strong contender in its category as it is a safe tuned IEM that goes well with multiple genres of music.

Gear used for the review are the ifi Diablo-2 and ifi Gobar Kensei , the Surfans F28, and Tempotec V6

Ceeluh7

500+ Head-Fier
Letshuoer Cadenza 4 Review
Pros: -The HeyGears build is fantastic in my opinion
-I love the understated and clean design aesthetic
-Great unboxing
-That cable is one of the best in the price point that I’ve seen
-Very nice warm and rich, non-offensive sound across the mix
-Nice lean-lush note weight and good density
-Full bass region that doesn’t overstep
-Deep sub-bass extension
-Forward and clean midrange with lush vocals and good clarity, beautiful
-Treble is relaxed but not mundane, there’s solid energy
-Soundstage
-I hear good layering of instruments and voices
Cons: -Build is not going to be to everyone’s taste
-Treble will be too lax for some
-Mid-bass could use more pointed slam, soft attack, pillowy
-Those who prefer neutral, clean, resolving may not be fans
-Separation is sometimes not perfect

Letshuoer Cadenza 4 Review



LC4 Featured Image
Full Review HERE

LC4

Letshuoer Cadenza 4

Intro

Hello, today I have with me the latest iem to grace the market from the very popular audio brand Letshuoer, named the Letshuoer Cadenza 4. The Cadenza 4 is actually a four-driver hybrid which consists of one dynamic driver and three balanced armature drivers, but more on that later. Folks, I have been a fan of Letshuoer for quite some time and have owned a number of their iems and one thing I feel that I can say with complete conviction is that Letshuoer is only getting better. While other brands rest on their laurels and stop trying to innovate and create, Letshuoer is doing the exact opposite. They use different driver configurations, a unique company to partner with in “HeyGears” and some of the best tuning that we’ve seen over the course of the last three to four years.

Good history with this brand

I’ve reviewed a few of their iems but have owned many more and each one I’ve been extremely happy with. Not that any of you asked. However, I reviewed and gave high marks for the Letshuoer S12 Pro (S12 Pro Review). Truly one of the best planar magnetic earphones that money can buy for under $150. I reviewed one of the better iems under $100 for vocals and simply great timbre in the Letshuoer DZ4 (DZ4 Review), and finally I reviewed the Letshuoer S15 (S15 Review) just last year. The S15 is my favorite planar iem… period. All of these sets mark some of my favorites in their price point. Something about this brand’s ability to tune and craft sets that have a rich and fun timbre without lacking in the technical stuff is flat-out intriguing. Truly they are fantastic at their craft.

Letshuoer

Letshuoer was actually founded as “Shuoer Acoustics” back in 2016 by Jeff Wong & Danny To. From what I can see, they only seek out the best in the field to work on their products and it seems as though they are quite proud of their team. Letshuoer has a long history of bringing some very well beloved iems to market. We’ve seen sets like the Cadenza 12 which has been lauded in the community. There’s also sets like the EJ07, EJ07M, EJ09, which all fall into the high-end price point. Of course, Letshuoer has also done very well in the budget space starting with their Letshuoer Singer, Letshuoer Tape, Letshuoer Tape Pro as well as some of the most loved planar iems you can find. Sets like the Letshuoer S12, S12 Pro, Z12, S15 and more. I also really enjoy the Letshuoer D13 which is also a low-cost example of a fantastic single DD under $100, and finally the Letshuoer DZ4, as I mentioned earlier. Folks, all of these iems are well thought out, well built, well designed and well-tuned to the target sound that Letshuoer was going for. It’s safe to say that Letshuoer has built somewhat of a dynasty, and I’m all for it.

Tough competition

There is a huge swath of iems that sit within the $200 to $300 price point that the Cadenza 4 fights against for your dollar. To be honest, this seems to be the one thing which holds most sets back. My biggest question and concern for the Cadenza 4 is if it can stand next to some of the greats in this revered price point. Well, I suppose that there’s only one way to find out. Let’s take a look at the Cadenza 4 friends…

Non-Affiliated Purchasing Link’s:

-Letshuoer.net

Disclaimer:

I received the Letshuoer Cadenza 4 from Letshuoer as a review sample and in exchange I will conduct a full review and feature at Mobileaudiophile.com. I have not received any payment or any other form of compensation for this review. This set is a review sample iem. Letshuoer has not requested to pre-read any review and doesn’t have any control over “what” or “when” anything gets published to mobileaudiophile.com. All thoughts within this review are my own, though please take note that I will always have my own biases. This is impossible to get around. I try to be as objective as my subjective self can be, but this is an opinion piece folks. Thank you to Letshuoer and thanks for reading.


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Aful SnowyNight / EPZ TP50 / iBasso DX240 / Shanling M6 Ultra / Fiio Q15 / Ifi Go Blu

Gear used for testing

Ifi Go Blu

Aful SnowyNight

EPZ TP50

Fiio Q15

iBasso DX240 with Amp8 MK2

Shanling M6 Ultra

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Packaging / Accessories

Unboxing

I love a good unboxing folks. Always have. Even if it lasts a short moment and is gone. Just a small shot of dopamine, I’ll take it. Thankfully Letshuoer knows how to package their iems in a way which shows them off. Also, they have such a cool way of doing so. First off, the Cadenza 4 comes in an average sized rectangular box; roughly 6” x 4” x 3”. The box has a sleeve which showcases their Logo, a neat design and some specs. If you look at the pics you can see that it’s hard to describe. It’s a neat, clean, and Apple-esque in its presentation. Anyways, slip off the sleeve and you are met with the actual box. Open that box and you’ll see an envelope with some reading material (that I won’t talk about now). Under that you’ll come to the earphones themselves sitting in cardboard covered foam cutouts. Next is the cool part. Just like the unboxing for the S15, the Cadenza 4’s box has a cool little drawer at the bottom. Pull the fabric drawer handle and you open up to the case on the left and the modular connections on the right. Inside the case are the tips and the cable. This is certainly one of the more unique and inventive unboxing experiences. Nice work Letshuoer!

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Eartips

LC4 Ear Tips

Inside the case you’ll find the eartips which are stuck on tabs on this round holder of sorts. The tips provided are of pretty good quality though I can tell you right away that I didn’t use them for my review. The first set (S, M, L) is a white shallow fit silicone eartip with a wide bore set with a flimsy flange. They drop down the low-end a bit too much and really pushes the upper mids/lower treble area for me. Not my favorite. The next set is a narrow bore set (S, M, L) that is able to insert a bit deeper and is semi rigid at the flange. I simply don’t get the seal I need with either of these tips. I actually went with the Letshuoer S15’s blue wide-bore tips in large. They seem to do everything I need them to sonically and fit like a glove. Honestly, if the included tips actually seal for you then I’d say you are good to go, and they are of decent quality.


Carrying Case

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The carrying case which comes included in the packaging of the Letshuoer Cadenza 4 is a hard plastic hockey puck shaped case with screw on threads. The plastic has that very cool feeling soft rubber coating over hard plastic. I’m sure some will feel that this material isn’t up to the price, but I completely beg to differ. This material has almost a soft texture to it, and it feels about as nice as plastic can feel. The size is great in that I can put the earphones, cable, tips, and possibly a small dongle dac as well (I haven’t tried to fit a dongle dac) inside and the top simply screws down nice and easy. This is actually almost identical to the carrying case which came with the Letshuoer S15. Perfect for throwing into a bag or even putting in a pocket without any worry whatsoever. Obviously, we’ve seen more elegant cases provided with iems. On the flip, we’ve also seen far worse from iems that were much more expensive. So, take that for what you will. Not a bad case by any stretch.


Cable

LC4 Cable

One of my favorite aspects of the whole Cadenza 4 package is the cable. It’s a gorgeous white cable, it’s thick, it’s modular as well. Really, a well-designed wire folks. The white is almost glossy, and the braid, or twist, is awesome in appearance. I love a fat cable, it just makes my iems look that much better, and when they color match… now we’re talking. Anyways, the cable is a 2-pin, made using silver plating over high purity monocrystalline copper and 392 strands. Furthermore, the bonus is that this cable is also modular, coming equipped with 3.5, 2.5, & 4.4 right angle modular jacks. I also like that they used stainless steel (I believe) strain reliefs and 2-pin fittings and every other fitting as well. It’s a slick design and a great addition. The modular Jack’s tightly push onto the connector and are very firm and fitted perfectly. I do get the most minimal microphonic sounds when rubbing on my shirt. However, that is almost not worth mentioning because it is so faint. Thankfully I don’t have to purchase an extra cable. So, there’s that.

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The Cadenza 4 comes equipped with one of the better modular cables in the price point.


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Simple & clean aesthetic that is refreshing and also…pretty dope!

Build / Design / Internals / Fit

Build Quality

The build will either be something that is a very nice to you, or it will be something that isn’t. Some people have issues with Letshuoer’s use of HeyGears materials. I actually really like HeyGears build quality and feel that it only adds to the Cadenza 4, but I can see why others don’t like it as much. However, I’m speaking to those who do. The build is fantastic with that semi-soft, yet dense plastic formed by way of 3D printing. Inside there are also 3D printed acoustic tubing which are perfectly aligned to the drivers. In fact, everything internally is built in this method, the chassis, the casing for the drivers, the tubes, vents, the whole nine yards. This method ensures precise control over the acoustic cavity everytime. The faceplates are crafted by way of CNC machined aluminum with a cool textured matte finish. Also, the Cadenza 4 is very light which helps for long listening. The nozzles have three holes where the acoustic tubes terminate at which are also medium in length. I think the build is fantastic folks. If you are going to build using plastics… this is the way to do it.

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LC4 Build Quality
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Design

This leads right into the design and aesthetic of the Cadenza 4 which I happen to adore. I love the minimalist, silver on white, clean aesthetic. Clean, clean, clean. You have that matte chalky white finish on the Shells that contrasts lightly against the silver matte finish of the faceplates. It’s tough looking. The faceplates have a small ridge running top to bottom to add some gradient texture with “Letshuoer” printed in parallel with that small ridge. I will say that this look won’t be everyone’s favorite, but I cannot help but be impressed. Iem design is always intriguing to me. I’m fascinated with how these brands try to separate themselves from the sea of sets. The visuals, the build, the graphics, whatever. The point is, I enjoy a brand who isn’t trying to simply win me over with flashy looks. The design is simple, but also sort of bold in that simplicity, and for that I say… “Well done, Letshuoer”.

Internals

Letshuoer decided upon a quad driver setup. A “hybrid” quad driver setup that is. That’s one 10mm beryllium coated dynamic driver for the lows, one Sonion balanced armature driver for the midrange and two Knowles balanced armature drivers for the highs. As you can see the drivers are made by reputable companies whose sole purpose is to craft & create drivers. Now, I don’t know who the maker of the dynamic driver is, but I do know that it is the same or similar to the driver used in one of Letshuoer’s more high-end iems. Also, I’m speculating on what parts of the frequency each driver accounts for. We all know about the word “assume” though… it makes an “ASS” out of “U” & “ME”. So, take that as a grain of salt. Anyways, Letshuoer also added in a four-way electronic crossover as well as the acoustic tubes which both work to cohesively separate areas of the mix.

Fit / Comfort

As far as comfort is concerned, I don’t have an issue whatsoever. Once again, I am reviewing a set that fits me like a glove. The only issue I had was with the included tips and finding a seal. However, the Cadenza 4 is made in such an ergonomically sound way that I would think they’d fit the majority of folks. Also, this set is extremely lite. They are not taxing on my ears and trust me, I’ve had these in my ears for over five hours at one time, many times. Comfort is great. That soft plastic seems to really be nice against the skin with no irritation at all. Beyond that, the isolation is better than most as well. Obviously not to the level of ANC sets but the Cadenza 4 still has very good passive isolation.

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Drivability / Synergy

The Letshuoer Cadenza 4 is rated with an impedance of 15 ohms as well as a sensitivity of 102 db’s. This is a set that is not hard to drive to volume. However, just because you are getting them to volume doesn’t mean that you are getting the most out of the sound. The truth is, the Cadenza 4 is certainly a set which will provide an uptick in sound quality with more raw power. Also, the Cadenza 4 does react quite well (depending on how you look at it) to source tonality too. I can say with complete confidence that the Cadenza 4 will actually scale very well with more output. Usually, I’d say it’s about the source tonality and source ability rather than the actual power. Definitely some planars react this way and some other sets as well. There’s no “across the board” standard on it. It’s certainly something that we see. That is, power helping to bring out the most in an iem. However, by-and-large I feel that the actual sonic skill of the source brings on the better sound quality and a little extra clean amping helps to add dynamics at times too. As far as the Cadenza 4 is concerned, I don’t think you need a million watts to get it there. Maybe a good strong dongle dac at the least.

Mobile Listening

Letshuoer Cadenza 4 Review Pic (110).JPGWhen on the go, out and about, in my office, doing chores, I’ll usually use a Bluetooth dac/amp or a dongle dac. Rarely do I bring a dap in these situations. I listed only a handful of devices that I used for testing but in reality, there were many more. Using the IFi Go Blu (CS43131 dac chip) was truly one of the nicest Bluetooth moments with this set. Using the 4.4 balanced output I found these two to pair very well. Also, I love the clean tuning and good power of the Aful SnowyNight and the EPZ TP50. Both devices use a CS43198 dac chip and both sounds very similar. Thankfully the neutralish sound of those two was a good mix with the Cadenza 4. However, I wouldn’t say that it is best to only use neutral sources. To be honest, I was more than happy with any source tonality that I tried. The only device that I tended not to enjoy was the Fiio KA3. Other than that, the Moondrop Dawn 4.4, EPZ TP20 Pro, Shanling UA2, Qudelix 5k, Hidizs S9 Pro Plus etc. all replayed the Cadenza 4 just fine. Still, warmer devices do slightly exaggerate the warmth. For whatever reason it wasn’t an issue though due to the Cadenza 4’s resolving sound and clean replay.

A bit more added power

Listening with some heavier hitters I found gave me the same thoughts. I honestly enjoy my iBasso DX240, Shanling M6 Ultra and my Fiio Q15 dac/amp the same. Perhaps the Q15 was a little more on point and clean, but I feel that the warmer M6 Ultra actually replays beautifully. I like em’ all. Slight variations between them but each device is a bona-fide stud and does great while the Cadenza 4 is attached. Also, I did use medium to high gain on each, though I’m sure if I stuck to medium gain, I would’ve been good to go. Still, between any and all sources that I have used with the Cadenza 4, it is beyond obvious that the Fiio Q15 sounded the best paired with it. Truly a great sound when coupled together.

What should you use?

If I were you, I’d try to pick up a good dongle dac. It doesn’t have to cost two hundred bucks either. There are some truly awesome dongle dacs under $100. Shoot, there are some great devices under $75! Even less. I would think that anyone who is affording the Cadenza 4 probably already has a decent source, but you never know. Everyone has different situations.

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Sound Impressions

Oh Cadenza 4, how you have entrapped me in your lushness, your milky vibrance. Okay that sounded really weird, sorry for that. Moving on… The Cadenza 4 is what I would call lush and warmish, almost Harman-esque, U-shape to even W-shape sound. I also hear an excellent balance across the mix with the only outlier frequency division being in a slightly more forward midrange. It comes across smooth and has this lush presence across the mix. The Cadenza 4 has warm undertones but does have some added neutral vibrance as well. The sound is creamy but not thick, smooth and velvet but not murky or veiled. This is a colored sound that sits at the fringes of organic with very pleasant timbre & tonality. I would call the Cadenza a musicality first iem, a mostly relaxed iem, and an easy listening iem that is also pretty fun sounding. It simply replays my music so very well. Multiple genres are a treat on this set.

A testament…

This isn’t a set that is going to unveil every last micro-detail (granted it is good for what it is) or separate instruments with perfectly fine-lined accuracy. No sir, this is a set that will either move your feet or make you close your eyes and simply melt away with it. Now, because this set replays in the manner that I described, I can tell you this… it won’t be for everyone. It is slightly polarizing in that way. Still, if you can appreciate all kinds of sound signatures then I cannot imagine you’d listen to this set and not be impressed. Very much in step with Letshuoer’s much less expensive triple DD, the Letshuoer DZ4. Just way more refined in every way. To have this warmly layered euphonic timbre, this casual smoothness which comes across so melodic and still staying true to each note without the rails falling off (covered in veil) … is a testament to Letshuoer’s ability to craft top class sets per their relative price points.

Condensed Sound Between the 20’s

If you’ve ever read any review from me then you know I add this section for those who don’t feel like trudging through another one of my 10,000-word reviews. Also, I do understand. However, I definitely cover more, with more detail past this point.

Anyways, the sub-bass has good extension while not overwhelming the mix. It’s clean and has steely density and rumbles nicely. The mid-bass isn’t the most impactful I’ve ever heard. Slightly soft and mellow in its attack but also doesn’t oversaturate the mix which helps to keep the mids less murky. The midrange is warm, lean-lush, forward and truly great for vocals. Maybe it isn’t the most separated midrange out there (not bad either), but I’d take that any day for this musical sound. Very melodic, mood inducing, and engaging. In truth, I find the midrange to be one of the best I’ve heard in the price point. The treble is safe across the board yet with some touches of brilliance peppered into the mix. Not dark, but warm & energetic, not rolled off but nicely extended. I also hear nice liveliness and energy, but it’s toned down a bit. This is non-offensive through and through. Slightly mellow but not without some upper treble spice. I find the bass and the treble do well to create a nice balance in this warmer setting while the midrange sits out front. It’s all very melodic folks and comes together very well. Really a very nice sounding iem. This is not a drab and boring sound, and I don’t consider it dull either. There is good macro-dynamic energy even in the non-brisk and tempered sound.

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Graph courtesy of Tone Deaf Monk, Thank You!

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The Shanling M6 Ultra takes warm and lush to new levels with the well-tuned Cadenza.


Bass Region

The low-end as a whole is certainly elevated and does have a very nice presence against the rest of the mix. However, it does sit a touch behind the midrange. Enough to not oversaturate the other frequencies or create too much of a foggy shroud over the presence of the midrange. Pushed back enough to let the midrange shine while not encroaching very hard on them. I find the bass isn’t attenuated or “less-than”. It’s a full bass region. Really, the extension of the sub-bass is pretty deep, and the mid-bass slam is definitely there. Just not that ultra vibrant, sharp & impactful slam. The low-end is dense in body, but also slightly plush in its attack. With that all said, I want to preface the bass section with one thing; this bass region is definitely acting in a supporting role. Everything is about the midrange on this set. Yes, the bass is good and yes, it’s satisfying, but it seems to take a slight back seat.

Sub-bass

The sub-bass is one which will rise to the occasion at a moment’s notice. I’d say that the greater emphasis in the bass region rests in the sub-bass as well. Now, I don’t find the sub-bass to be very overemphasized or aggressive, but it can certainly thump. It’s still full and formidable in its substance and weight but just not so sonorous that it overtakes any other area of the mix. In my opinion, I feel other areas are actually a bit more forward in the sound field like the mid-mid, upper-mids, lower treble too. Unless of course the track I’m listening to features a heavy amount of that sub-bass rumble. That’s a different story. At any rate, the sub-bass has a less defined attack and carries a softer lined but authoritative rumble. I find that it really works very well with the overall theme of the tuning. Enough to add some good haptic vibrational and tactile feel to my music.

Sub-bass cont…

Listening to a track that is always used for review purposes is “Groove” by Ray Wylie Hubbard. I use this track because I know it so well. If a set has some good sub-bass extension or emphasis, then this track will tell me that. Along with about twenty others that I use. However, with the Cadenza 4 I don’t get that overbearing sub-bass growl as I would with other more emphasized iems. That said, I love the emphasis that I do get as it’s still full bodied, it’s still deep and defined and still very agile. Yet, within that semi-deep but full-bodied sound I actually hear Ray’s deadpanned vocals very well as the sub-bass isn’t masking his voice. “Stereo Colour Cloud” by Sampha is another track where the bass region is the foundation of the track. Again, I hear a good and dense bassline coming across, boosted in quantity and clean enough against the backdrop of the rest of the melody. In this way separation is very good. The sub-bass can dive deep and can do so with a more warmly weighted and lush presentation. Also, this is in no way a disheveled or untidy sub-bass. Like I said, agility is actually very good with a ductile and dexterous ability to maneuver through dynamic shifts. It’s deep, it’s penetrative, but it isn’t overdone.

Mid-bass

The mid-bass on the other hand is less emphasized. Still, it has plenty of meat to it but simply isn’t elevated to the point of heavy slam. Let’s put it this way, bassheads won’t be impressed. However, I still find the slam and boom satisfying enough on some tracks and on others I’d say that the Cadenza 4 lacks a bit in this region. I find the mid-bass to be slightly pillowy or plush. Perhaps a hint fuzzy at times. Not perfectly defined or chiseled sounding to my ears. This doesn’t make it bad either. The tonality and timbre are great, very organic and on top of that… It’s still fun and indulging. Listening to “Billie Jean” by Weezer (Michael Jackson cover), the kick drums are certainly enough to provide some density and good weight. However, the drums weren’t as sharp in their attack as I’d usually like. Still, I go back to the fact that the mid-bass, just like the sub-bass, both play supporting roles. This is a warm U to W-shape iem with forward mids and lush engaging vocals. The bass never oversteps its bounds. Especially the mid-bass. In that respect I absolutely adore what Letshuoer has done. It’s big enough, bold enough, it slams, it rumbles, and it does its job. It simply isn’t that emphasized or ultra detailed & defined mid-bass. Also, it doesn’t have the most bullish quantity I’ve ever heard.

Downsides to the Bass Region

The bass region certainly has issues but if you put those issues into context to the situation of the tuning… you may start to see why the bass helps this set to be pretty special as a whole. First, bassheads won’t want this one. It’s not basshead. Yes, it can boom when called upon, but it does not reach bass Boi levels. No sir. Secondly, this is a bass which isn’t pointed and refined. Texture slightly lacks, maybe it’s a bit pillowy at times. Those things are certainly true. I have to repeat myself though; the bass is playing a supporting role. This is so very evident. The tuning is fantastic on this set. Also, besides adding just a hint more mid-bass emphasis in db’s, I’d say I wouldn’t change a thing.

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Midrange

Like I’ve already stated, the entire tuning in my opinion supports this beautiful midrange. The mids are like the rest of the mix but simply tuned forward in the sound field in comparison to the bass and the treble. It is so nice to hear because it is tastefully done. In fact, here’s my round of applause. Okay, apparently it is tough to mimic a round of applause in a review. Notwithstanding… great job Letshuoer. The mids are subtly milky through and through. They have their moments of crispness and precision. Still, for the most part the midrange has lean-lush note weight and is never too congested or too weighted, never veiled and never too blurry. The midrange comes through just left of neutral with some warmth. Closer to a creamy style of vocals with good solidity underlying. Without question the mids are emotionally and engagingly refined. Not refined as in precisely defined, expertly separated, or detailed. I mean refined as in well structured, great timbre, and it’s as transient tight as a smoother midrange note can be while still keeping a smooth demeanor. Also, before I go any further let me just say that the detail retrieval isn’t bad by any means. Certainly not a dry or analytical style and so it won’t bring out every last detail, but still resolving to my ears.

Lower-midrange

The low-mids have a slightly warm type of tonal color with a smooth attack and a more velvet style inflection in general. There is some spill over from the bass region though mostly the bass and mids intersect in a clean way. Not quite as pinpoint or as precise as some sets and not surgically abrupt in its note definition. That’s not to say that the Cadenza 4 can’t be that either. In general, and on most tracks, the lower midrange prefers silky and plush over glass lined and crisp. It’s a heavenly way to listen to my music.

Males in this region have a slightly lean body which I would again describe as lean-lush, or svelte-richness. It’s the 1% milk of the audio world. The mass of a note persists whether the actual body is thick or not. Also, the transient attack through release is actually fairly quick and clean within this slightly warmer environment. Instruments don’t sound as though they have prolonged harmonics or lagging decay. It’s as clean a sound as lean-lush can be while still favoring that velvet style timbre. Actually, the beauty of this region (and the midrange as a whole) is that the timbre has that warm natural hue to it. No odd metallic timbre here. When listening to “Blue Wall” by Noah Guthrie, his voice is so well highlighted and etched out, full but pronounced. Male vocals are very well done here. Or Lewis Capaldi in “Someone You Loved”. The Cadenza 4 takes his hard Scottish cadence and smooths over the rough edges. It gently pushes his voice out front, and it really is nice to hear.

Upper-Midrange

I feel the upper mids are the crown jewel of the midrange and the midrange is the crown jewels of the Cadenza 4. Females simply sound devine to me. Now, the upper mids feature thinner note body but still have that plush style of timbre which softens the macro-dynamic energy and vibrance just a hair. This is not an overly energetic or super lively upper-mid. Having said that, there’s still some good capped-off energy and sprightliness there that never goes out of control. I also enjoy the layer of shimmer that exists for all instruments and vocals in this region. Perhaps ever-so-slightly lacking some edge and snap to percussion and guitar plucks, but it really does make up for it in how well it portrays female voices. Still, there is a slight lack in actual pinpoint precision throughout the mids and this holds true for the upper midrange as well. You aren’t getting a Simgot EA1000 style upper midrange, but instead a luxurious one, dripping in emotion and tuned for musicality. Possibly its greatest selling point, which supersedes any of its shortcomings. It’s the engagement factor! Lean-lush richness in every moment, yet still the Cadenza 4 is able to do so in a very resolute manner.

Lovely females

Females are simply great, sounding forward enough to feel out front and on a pedestal yet that forward sound is never overbearing. It’s tasteful. The upper mids come through with smoother textures, while never sounding sharp or glaring. In fact, the entire upper midrange is this way. Never any shoutiness, sibilance, or undue peaks. Listening to Lady Gaga sing “Always Remember Us This Way” comes across a hint thinner in body but also, she sounds sublime with her scratchy but resounding voice. The Cadenza 4 truly shines a spotlight on her vocals. Also, Kacey Musgraves in “Deeper Well” is an experience when listening with the Cadenza 4 attached to the Fiio Q15. Eh, take any source. Kacey’s vocals are so very gratifying and pleasurable for me. The Cadenza 4 really props up her sweet inflections with absolute ease. Females are lovely with this set.

Instrumentation

Also, instruments like piano are very tuneful and full sounding without coming across blunted. Some strings could use a hint more sharpness and edge dynamics but for the most part they come across organic and very nice sounding. Percussive instruments have enough definition in their leading edge though they may lack some crisp snap for some folks. Stuff like snares won’t have that pointed edge to the initial “pang”, but also, they have enough energy to come across like an exclamation point in my opinion. Cymbals always have good weight afforded to them with great harmonics which trail off into the treble. Never splashy or layered in a glossy sheen. Most instruments are slightly smoothened and have that layer of warmth to them which really fits the overall theme of the tuning. Timing is great and so is cadence and it all comes together admirably. I won’t go too long on instruments as every track can replay them differently. However, generally speaking Instruments come through nicely. Maybe there’s the slightest lack of acute punchiness or crispness here and there, but I don’t feel that it is always the case at all. There is still some reserved energy that comes out when called upon. Just don’t expect some ultra lively replay.

Downsides to the Midrange

The mids biggest issues are lack of perfect separation of instruments and the smooth nature of the timbre which sometimes lacks good energy for proper bite and dynamics. This is a set with a slightly softened macro-dynamic energy. Details are not going to emerge like some more technically inclined iems within the price point either. They are there and I do feel that the Cadenza 4 is probably above average, but it definitely isn’t tuned as a detail king in the midrange. Beyond those things, the mids can sound slightly congested in more congested tracks. This probably goes without saying and is likely the case on most sets, but it should be pointed out. However, I cannot help but love the midrange as a whole. Vocals are wonderful and the Cadenza 4’s musicality is really endearing, and the engagement factor is off the charts for the price point. This set takes casual listening to a new level.


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My favorite way to listen to the Cadenza 4 is with the Fiio Q15. Simply beautiful.


Treble Region

The treble is not one which will brighten the entire mix in luminosity and brilliance. It is not that. I hear a warm treble. Not dark at all, but simply warmer sounding with dashes of brightness and enough lift to add much needed levity to the entire spectrum. However, it is warmer, not exuding vibrance to the point that it’s beaming in effulgent luster or anything. This is a partially relaxed sound, albeit with a highly resolving nature. I hear good separation up top while also hearing good extension. Maybe leaning towards being melodious and subdued to a degree but not lacking energy in relation to the rest of the mix. It fits the overall tuning perfectly. I hear just enough shimmer while coming across only slightly less radiant than I’d like. There’s still a bite to the attack edge of notes and though note outlines come through smoother up top separation of instruments is not an issue for me. Also, I can appreciate the more gradual climb through the pinna gain and the nice transition into the lower treble, as cohesion is really great on the Cadenza 4. This is definitely not for treble heads, but I do feel the treble is well done for what it is. It’s cohesive, it’s not going to kill your ears in fatigue and technicalities are good per the tuning.

Good speed

The treble also has pretty nice speed and agility too, but it all comes through in a less sprightly manner. I can hear the very subtle micro-details and micro-dynamic shifts rather well, even in those more complicated tracks. Again, there are sets which are born and bred to illuminate the treble region in forced resolution and are tuned to maneuver easily through any track you throw at them. I’d say the Cadenza 4 can do that to a degree because it has quality treble which simply isn’t overdone or overcooked. Listening to Billy Strings in his track “Secrets” is awesome on the Cadenza 4. His banjo truly moves at breakneck speeds, and I can easily make out each note. Again, I hear good separation of each instrument and the timbre comes across very naturally to the ear. Yes, it’s a tad relaxed, but not in a mundane way. It’s relaxed in its luminance and brilliance. There’s a difference. That takes nothing away from its abilities to be nimble at all times or when it’s called to do so.

Not bad

Extension into the upper treble was not forgotten either. However, Letshuoer made sure that the Cadenza 4 took on the upper treble in a tasteful manner. Yes, it’s warmer, maybe dark to some folks even. Certainly, it stays true to the tuning as a whole. Obviously, they couldn’t pump up the db’s past 10k and throw everything off like some sets we see. Though there is a peak out there which adds some dimension to the sound, some air and openness that is sorely needed. Also, timbre up top is very well tuned into this region. The example I always give is cymbals because they are the most obvious example to use and one which I listen for all the time. The secondary harmonics of a cymbal strike decay very nicely and aren’t simply a splashy mess of treble tizziness. They have control about them. They sound natural to the ear. Well, as best as I can tell anyways. I feel this goes for most instruments. They sound natural up top. So often we hear sets that are either rolled-off or so endued with brilliance and shine that they come across unnatural. I realize that treble lovers may disagree but not everything is for everyone.

Downsides to the Treble Region

I would first point out once again what I’ve already spent time saying. That is that treble heads or bright treble lovers will not want to spend their hard-earned money on this set. It is warmer and toned down, slightly more relaxed than some sets. Also, the energy needed for a solid bite at note edges isn’t as sharp and a crisp crunch isn’t there at all times either. Other than that, maybe the treble is not the most detailed within the $200 to $300 price point, although they are above average in my opinion so, not really a downside. Just not up to some of the best in the price point. However, I wouldn’t want it to be. I wouldn’t want to do anything to ruin the mellifluous musicality of this set. Don’t touch anything.

Letshuoer Cadenza 4 Review Pic (82).jpg


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As far as mobile use cases, my favorite pairing is with the Aful SnowyNight.


Technicalities

Soundstage

The soundstage is actually very nice. With the Cadenza 4 in your ears, you will hear a psycho-acoustic stage that sounds wide for an in-ear. This also goes for height. It’s a big and full stage presence. I feel nothing is overly cramped at all. On top of that, there is good depth for layering. Now, I hear this better with a cleaner source, but I find that layering is actually decent and front to back depth is also good. This is a very nice attribute to have. Almost 3D in its presentation of the stage. Obviously, the track will do a lot to dictate just how expansive the stage is for you and some tracks simply aren’t recorded in a manner to best depict this stage. Still, by-and-large the stage is certainly above average in my opinion. Of course, I haven’t heard every set in the price point, but from my journey through audio I find the soundstage to be good and even a “pro”.

Separation / Imaging

This is where we see some closing of the space within the sound field. Separation isn’t perfect. It isn’t bad either. It all checks out though. You have a richer sound with slightly lusher layers and less midrange air separation. Again, not something that takes away from my musical enjoyment, but something to point out. I labeled separation a “con” at the beginning of this review and I did so because there is some slight congestion at times. It’s a softly edged sound, plush, warmer than neutral and sometimes elements of a stage are gently squeezed a hair. Oddly enough, Imaging is fantastic with very nice placement of those elements. Left to right and front to back feature well laid out depictions of an imaginary stage. This helps in layering of sounds within the sound field. Perhaps, those sounds aren’t as defined as some would like but there are still well done and in keeping with the overall tuning.

Detail Retrieval

Here is another area where I run into some slight issues. Well, they aren’t issues to me, but I could see that some people will likely wish that the Cadenza 4 had better detail retrieval for the price. Regardless, I still feel that the detail retrieval is actually quite good for how the Cadenza 4 was tuned and probably average to above average against the field of iems in its price point. The only real caveat is in hyper congested music or very complicated tracks as well as heavy bass jams. In those instances, the Cadenza 4 really doesn’t have the openness, air, transient swiftness or crystalline definition to skirt around more complicated and congested music. Again… I wouldn’t want it to. Still, all things considered… average to above average depending on the track.

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Penon Fan 2 / Hisenior Mega5P / Letshuoer Cadenza 4


Comparisons

Note: These comparisons will not be a duel to the death. My approach is not to crown one set the winner over the other. I simply compare sets to hopefully explain the sound of the set I’m reviewing a bit better. Also, I use very general terms with very broad strokes. I won’t go I to great detail as I do try to keep my reviews under a certain word count.

Hisenior Mega5P ($239)

HSM5P

The 1st comparison involves one of Hisenior‘s earlier releases, the Hisenior Mega5P. The Mega5P is a five driver Hybrid iem consisting of one 10mm dynamic driver as well as four Balanced armature drivers. Folks, the 5P is a special iem which made waves in its genesis. The sound and naturally neutral tonality as well as the balance across the mix is very endearing. Without question one of the best iems you can buy within the price point if you crave that clean mannered balance.

Differences

Starting with the build, the Mega5p is an all resin-built set with a solid chassis and is very ergonomically gifted. Though the Cadenza 4 is probably built to be a bit more durable and at least for me it is just as comfortable. As far as looks go, the Mega5p has that gorgeous black and white swirling pattern that is simply awesome to look at while the Cadenza 4 is more minimalist and reserved in its look and appearance. I like them both. Without blinking an eye, I’d say that the Cadenza 4 has much better accessories with its awesome modular cable, and better unboxing experience.

Sound Differences

Between the two, the Mega5p is definitely the cleaner sounding set but they both have a wonderful balance across the mix. The Cadenza 4 has a much richer note weight and delivery to the 5P’s leaner note weight and more resolving and transparent sound. I find that both sets have about equal bass emphasis between the two. The 5P’s bass is a slight bit more forward in the mix but I feel the Cadenza 4’s bass is actually a bit more agile. The midrange of the Cadenza 4 is much richer and fuller bodied in comparison to the 5P’s midrange. I hear a more lush, creamy sounding timbre on the Cadenza 4, to the 5P’s more transparent and resolving sound. Definitely the 5P has better air, openness and separation in its midrange. That said, the Cadenza 4 is much more musical & engaging to my ears. The treble region is relaxed on both iems, but the 5P is once again the cleaner sounding set, while the Cadenza 4 has the more lush and musical sound. Extension is better on the Cadenza 4 with slightly better bite to treble notes.

Technicalities

Detail Retrieval goes to the Mega5p almost across the board. It is simply tuned in a way to draw out the subtleties a bit easier than the Cadenza 4. Separation of Instruments and voices suffers the same fate for the Cadenza 4 as the 5P has a more defined note edge across the mix. Both sets have good transients that come and go pretty swiftly. I do think it’s easier to hear on the less rich sounding 5P though. Soundstage goes to the Cadenza 4 in all directions. I hear better width and depth with slightly more of a holographic sound. Imaging comes through about equal on both sets. They both do a very good job in this area.

Further thoughts on this comparison

As you can see, these two sets trade blows quite well. You may have also noticed that the two are very different from each other which makes for a classic preference battle. Meaning, your preferences will clearly align with one of the two. It should be obvious which one you think you’d enjoy most. As for me, I honestly enjoy almost all sound signatures and can truly appreciate them both as well as enjoy them both. I think that I am leaning towards the Cadenza 4 though because there aren’t a ton of iems that sound like it. The musicality is simply greater on this set. It is much more melodious and has that weighted and rich timbre that is simply spellbinding to me. I hear many sets like the 5P. So many sets are tuned similarly. Granted I take nothing away from it at all. There are many days that I reach for it when I have a chance to simply max n’ relax. However, the Cadenza 4 has something that the 5P simply doesn’t and that’s raw musicality. I love them both, but I totally understand if you disagree.

Graph HSM5P
Graph courtesy of ToneDeafMonk, Thanks!


Penon Fan 2 ($279)

PF2

The Penon Fan 2 is one of those sets that you either love or you don’t. It’s even more polarizing than the Cadenza 4 is, in my opinion. Anything that leans heavy either way of neutral is going to be pretty polarizing. More on that in a bit. So, the Penon Fan 2 is actually a four-driver hybrid iem with two dynamic drivers and two balanced armature drivers. All of the drivers are of great quality. Now, I never got around to reviewing this set, but I can assure you that it is a bona-fide stud. One of those sets that lean so heavy in one direction that brain burn all of the sudden becomes something that is a must. Truly a contender for the style of tuning that the Fan 2 has, but it won’t please everyone.

Differences

First, the Fan 2 is molded wholly out of a very nice resin material while of course the Cadenza 4 has that nice HeyGears build. Again, I still feel the Cadenza 4 is made with better materials, just the feel them both in my hand tells me that. Still, both well made, both are dope looking. I do prefer the look of the Cadenza 4 but that may also be a prisoner of the moment type thing. As far as unboxing experiences go, the Penon Fan 2 has the better set of accessories. Except the cable… definitely the Cadenza 4 has a much better cable. Everything else goes to the Fan 2. Much better tips, much better case. Of course, the Fan 2 is also pricier. The Cadenza 4’s original MSRP is $249 (on sale for $229 now) while the Fan 2’s MSRP is around $279. Of course, the Fan 2 is also on sale constantly. I suggest getting on their (Penon) email list as they promote their sales to those folks who are subscribed. Always good sales. I got the Fan 2 for $150. As far as aesthetic differences I do feel the Cadenza 4 has the upper hand, but the Fan 2 is right there with it. Both worthy of their price tags.

Sound Differences

To start, I thought that the Cadenza 4 was lush, warm and weighted. The Fan 2 is 100% lush! It is so far to the warm/dark side of the aisle that it will directly cut off half the listening population on that alone. However, if you can respect the tuning for what it is than you’ll see how special this iem is. Anyway, the Fan 2 is warmer, darker, and with thicker note weight. The Cadenza 4 is leaner in its approach, it’s cleaner, more balanced and less like molasses. The Fan 2 is a milkshake against the 1% milk of the Cadenza 4. Naturally the Cadenza 4 comes across cleaner and with more vibrant macro-dynamic energy. The Fan 2 however, has that dark sound, but a very highly resolved darkness to it. It is a unicorn of an iem. To be that dark and still come across as W-shape is a different approach that not many brands dare to try, well done Penon. However, the Cadenza 4 has more of a balanced sound that to me is special.

Between the 20’s

The Fan 2 has a more bulbous, thick, full and all-encompassing mid-bass region. The Cadenza 4 is much more lissome, ductile, agile and impactful. Having said that, the Cadenza 4 also has better sub-bass extension, deeper in that region too. The Fan 2 has a quick attack but a slow decay, atmospheric to the umpteenth degree. Whereas the Cadenza 4 hits n’ gets with better control. The Cadenza 4 simply doesn’t cloud the rest of the mix with as much murkiness, while the Fan 2 does have a veil of warmth that permeates the entire tuning. Veiled, but in a very charming way. The Fan 2 has beautifully rendered warm and cozy vocals with a forward midrange that is very thickly weighted. Now, the Cadenza 4 also has good density of midrange notes, but they are also leaner, more sprightly, vibrant and better resolved. I do feel that the rich tonal presentation of the Fan 2 is great, but the clear winner in vocal playback goes to the Cadenza 4, for me. The balance is better on the Cadenza 4, while the Fan 2 is tilted way to the left. The bass of the Fan 2 encroaches in a very tactful way into the midrange creating that nice milky and rich sound while the Cadenza 4 is a bit more tasteful for most people. The treble region of the Cadenza 4 is brighter (if you can call it that), more detailed, faster, more bite, more energy, and better extension by a long shot. While the Fan 2 has this vivid and yet warm dynamic treble that is so nice if you can wrap your brain around it.

Technicalities

Technically speaking the Cadenza 4 has better detail retrieval almost across the board. The Fan 2 specializes in “macro-details” whereas the Cadenza 4 is able to illuminate much more of the “micro-details” from my music. Imaging is special on both iems. Both can reproduce a good stage with good placement of Instruments and voices. Separation is better on the Cadenza 4, and I also find that the transient attack and decay is a bit more lithesome, malleable, and simply springier on the Cadenza 4 as well. With a bit more air, notes are better defined. When listening for soundstage differences I feel the Fan 2 has this intimate, average width, completely musical stage that is so engaging with very good depth of field. Layering is great even with the slightly clouded separation of those layers. The Cadenza 4 does have a wider, taller and more immersive sounding stage, it’s fuller and more all-encompassing and nearly as deep. Though depth is a tough thing to try to quantify, I simply hear slightly better front to back depth on the Fan 2. I think most technicalities go to the Cadenza 4, and it stands to reason. However, technicalities are neither set’s forte. Neither iem is a detail king, neither is dry and analytical in its approach and both have that rich and cozy lushness to their sound.

Further thoughts on this comparison

Folks, I don’t know how to adequately say this but both sets are phenomenal. In truth, I love them both. How could I not love the Fan 2’s lush and vivid fullness and warmly weighted musicality. I love it. So easily I can get lost in how it portrays my music. However, I have been taken away by the Cadenza 4’s lean richness and beautiful midrange quality. I do think that the better iem for me is the Cadenza 4. At times. There are moments when the Fan 2 hits that urge within me. Moments that I want only what it can provide. However, I do think that the more talented and all around better iem is the less expensive Cadenza 4. I usually never say something like that, but I have to be realistic. Not as many people will fall in love with the Fan 2 as I and a few others have. Both are great for what they are, and I am blessed to have them both in my collection.

LC4 Graph PF2
Graph courtesy of ToneDeafMonk, Thanks!

LC4





Is it worth the asking price?

The question posed in the header is one that I feel I’ve answered many times already inside my review. Folks, I would pay the $229 or $249 any day of the week for the Cadenza 4 without a thought! To have what the Cadenza 4 provides to my listening experience is priceless to me. It is fast becoming one of my favorite iems within the $200 to $300 price bracket. However, I have to be real. Not everyone will share my love. When you have sets like the Tanchjim Origin (Origin Review), Simgot EA1000, Rose Technics QT9 Mk3 (QT9 MK3 Review), OG Mangird Tea, Aful Performer 5, Kiwi Ears Orchestra Lite (Orchestra Lite Review), Penon Fan 2, Penon Vortex, Seeaudio Bravery, Dunu Falcon Ultra, BQEYZ Wind, BQEYZ Winter, Kinera Hodur (Hodur Review), ISN Audio NEO 5, it’s a tough road for any set, and that’s only to name a few. There are many more iems that are legitimate studs within $200 to $300. Also, not everyone will yearn for what the Cadenza 4 offers tuning wise. So, I can only speak for myself when answering this question in this particular price bracket. For me, without question the Cadenza 4 is worth the price to own it.

The Why…

Because the HeyGears build is so well constructed, with such a uniform, clean and durable feel. Also, because the Cadenza 4 is 100% comfort and ergonomics. The Cadenza 4 is partially worth the price because of how well the design language is. Such a beautiful design. Letshuoer didn’t need to add any flashiness because the actual charm of this iem is in its simplicity, and there’s something refreshing about that. Fully bold in appearance while at the same time it’s fully elegant. The accessories are some of the best you’ll receive within the price point, hands down. This cable is truly a special one and you’ll know that when it is in your hands. With all those nice words that give proper respect to a well-designed and well-crafted set… the true worth of every iem is in its sound, of course. Folks, Letshuoer obviously used very good drivers and they expertly tuned this set to a very particular sound style which is fastly becoming a Letshuoer brand “house sound”. I don’t know if labeling it that is in agreeance with Letshuoer, but it sure looks like it from the outside looking in.

Cont…

The bass is a very well-done supporting actor which is tailored to prop up the midrange and does so with the perfect amount of depth, visceral slam and it does fortify the low end of the spectrum. Next, the treble has that never offensive but perfectly fitting emphasis which is another supporting role that suits this tuning to the tee. A few db’s added or taken away would change the overall dynamic and so bravo to Letshuoer for the vision that they had when going into this venture. The treble is just brilliant enough but warm in its approach, detailed enough and extended very well without any sibilance, splashiness, piercing peaks or treble glare. Nevertheless, despite how nice each end of the spectrum is, it’s all about the mids. The midrange is flat-out and hands-down one of the best I’ve heard in the price point. No bones about it folks, this midrange is delightful. The vocal reproduction of both male and female voices is exquisite. I don’t say this half-heartedly, friends. I say this with complete and utter conviction. The soundstage is above average in width, deep and with good layering which helps to provide better than adequate imaging. I know that not everyone will share in my enthusiasm, and that’s okay. But man is the Cadenza 4 a well done iem! Letshuoer! Here’s me patting you on the back! Yes, the Cadenza 4 is worth the asking price.

LC4


Full Review HERE

Ratings (0-10)

Note: all ratings are based upon my subjective judgment. These ratings are garnered against either similarly priced sets or with similar driver implementations or styles with the unique parameters of my choosing. In the case of the Letshuoer Cadenza 4 ratings below, that would be $200-$300 iems in any driver configuration. Please remember that “ratings” don’t tell the whole story. This leaves out nuance and a number of other qualities which make an iem what it is. A “5-6” is roughly average and please take into consideration the “lot” of iems these ratings are gathered against. $200-$300 US is a pretty vast scope of iems that is extremely competitive, and so seeing a Rating above a “9.0” better mean something very special. My ratings are never the same and each set of ratings tells a different story. Each time you read one of my ratings will be unique to that review. Basically, I create a Rating that makes sense to me.

Aesthetic

Build Quality: 8.7 Built very well, HeyGears builds are great.

Look: 9.5 Clean, fresh, simple, elegant.

Fit/Comfort: 9.8 Fit and comfort is great for me.

Accessories: 9.5 Very well accessorized.

Overall: 9.4🔥🔥


Sound Rating

Timbre: 9.4 Top class timbre.

Bass: 8.5 Extension, great supporting role.

Midrange: 9.8 Great presence in the mids.

Treble: 7.8 Relaxed but great tonality.

Technicalities: 8.4 Soundstage & imaging are great.

Musicality: 9.7 Musical thru & thru.

Overall: 9.0🔥🔥🔥

Ratings Summary:

Have I ever explained to you how little I enjoy Rating anything? Folks, please hear me, ratings are no good. I do it because I’m asked to. They tell nothing of nuance and never give the full picture. It’s a cheap way to explain anything. In each rating category, I could have multiple sub-categories. These are bare bones ratings, so give the proper weight to the importance of them. That’s very little. Grains of salt my friends. That said, I do have to rate the Cadenza 4. However, let’s not get things twisted, like most sets, the Cadenza 4 cannot be broken down into categories. This is a set which should only be rated and reviewed as a whole. This is something I say often in my reviews, and it couldn’t be truer than for the Cadenza 4. When each Rating is individually broken down and rated it simply looks worse than one grade as a whole. Even when I tallied the ratings and got a “9.0” total sound score it still is less than what I would give this set. It’s a “9.5” at least in my eyes. Probably more like a “9.8” against the field of sets that I’ve heard. However, you have to enjoy the tuning for this to be true to you as well. Not everyone will agree with that. Coincidentally, that is exactly what makes this hobby the best hobby on earth. I’m convinced of that.

Explain Yourself!!!

Okay, so there are more than a few ratings which may garner some anger and DM’s (yes this happens). Some of you are crazy about this stuff and actually get mad, which is weird, so calm down and hear me out. Time to be adults and act like actual men… and women. I would say that the bass category could go a few points less for some folks. I’m sure they won’t find it as enthralling as I do. It isn’t the most defined, not the most glass-lined and clean, doesn’t have the best transient swiftness. So how did I give it an “8.5”? Because of what it is for the overall tuning. Yes, I could use a hint more lift in the mid-bass, but the extension is great, and the density is good too. It’s resolute enough for an 8.5, it does have adequate rumble and plenty of slam for most any genre. To be honest, I looked this over for a while and with a total of 10 iems in front of me I established that “for me” the low-end carries an “8.5”, give or take. Timbre may be a problem for some folks too. You do have to enjoy the warmer, richer and less vibrant timbre to agree with me that it is a “9.4”. Basically, you have to actually like the tuning and so these ratings could go either way. Also, ratings are personal to the reviewer so again, please take this ridiculous section as a grain of salt… please!

LC4



Conclusion

To conclude my full written review of the Letshuoer Cadenza 4, I want to first thank the awesome people of Letshuoer for providing the Cadenza 4 in exchange for a feature at Mobileaudiophile.com and a full review. Letshuoer has never once asked me to skew my words, talk well of their products, pre-read my review, and never tried to bribe me or lead me in any direction. Kudos to Letshuoer, they have my respect. Instead, they simply let the chips fall where they may. They believe in their product and that in and of itself is a testament to Letshuoer. So, thank you very much!

Other perspectives

Please! Please look at other reviews. Do not simply read mine and hit “buy now”. Don’t do that! Read, watch, or listen to other thoughts. My thoughts are mine, personal to me. The next guy or gal may feel completely different. Please do yourself a favor and do your homework before shelling out the $250 to own this set. It will pay off in the long run to have a bit more of an educated decision. There are so many amazing reviewers out there and they may fit your preferences a bit closer than I do.

Thanks

Also, thank you for reading this review and clicking the link to our website. This is of high importance to us. Every click is important, the time you are here is important, and I couldn’t thank you enough. We rely on you to build our site as we are a small group of reviewers, each with our own style and opinion. We rely on you and hope that you find our site worthy of your time. I think I’m done friends. Please take good care of you and yours, stay as safe as you can and always… GOD BLESS!

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D
David Haworth
Enjoying these with Kasey too. Top review
Ceeluh7
Ceeluh7

Zerstorer_GOhren

1000+ Head-Fier
LETSHUOER CADENZA 4 featuring LR-NEBULA CABLE: Smooth, Inoffensive Neutrally Tuned One
Pros: CADENZA 4

● Light yet sturdy composite shell chassis
● It has some of the best fitting and comfort as it offers excellent passive noise isolation.
● Like all LETSHUOER products, it has a substantial amount of accessories.
● High quality modular stock cable.
● Only needs a decent power output to amplify this set.
● A balanced-neutral tuning for neutral heads and midcentric individuals.
● Precise and sufficiently resounding bass response.
● Linear, clean and translucent midrange presentation
● Quite versatile on vocals and instruments.
● Smooth and inoffensive treble quality.
● Not a hint of sibilance nor stridency.
● Remarkable aspects of its technical performance particularly layering, separation and cohesive performance of its multi-drivers.
● Holographic stereo imaging.

LR-NEBULA

● Flexible and supple quality.
● It really looks premium and luxurious to feel.
● Inclusion of a storage case.
● Gold-plated termination plug.
● Pliable ear hooks.
● Not a hint of microphonic.
Cons: CADENZA 4

● Absolutely not for bass heads as its bass response appears to be lacking authority and impact.
● Not also for treble heads due its smooth and less lively treble response on their liking.
● Wishing for more airy extension.
● For some reason, like most resin shell chassis that were 3D-moulded by HEYGEARS, it looks a bit bland and feels somewhat cheap.

LR- NEBULA

● A bit pricey
● Doesn't have a modularity option for switching termination plugs.
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“Music is like a dream. One that I cannot hear.”

~~Ludwig Van Beethoven, German composer and pianist


LETSHUOER AUDIO as an audio company will always deliver a high quality product from their entry-level up to the TOTL- flagship model range with some of their products that still resonate with the audio community. The EJ07 and S12 PRO are the epitome of their excellence as an audio company on how these particular models somehow truly influences the state of the audio market.

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What I have here that will be featured on this review article is their latest product, The LETSHUOER CADENZA 4. This model is supposedly an affordable version of their TOTL - flagship model, CADENZA 12 which was known to be the most priciest LETSHUOER product to date. Like its flagship sister, CADENZA 4 also has hybrid driver configuration albeit it has lesser numbers with some different driver technology, new materials of its cable and a composite shell chassis. Although, like its predecessor, it still retains a modularity aspect of its stock cable.

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As a set with a hybrid driver configuration, CADENZA 4 has a single dynamic driver and three balanced armature drivers on each side. The dynamic drivers that were implemented are 10mm dual chambered layout with its beryllium-coated thin but durable diaphragm which solely handles the low frequencies to have a precise and depth bass response. Aside from dynamic drivers, it was by balanced armature drivers that produced by two of the most premium audio solutions in the market, Sonion and Knowles in which these drivers directly responsible on midrange and high frequencies to have smooth, consistent sound with better clarity while having a good brilliance of its sonic quality. These drivers were connected into a 3D-moulded 3-way acoustic tube along with a 4-way electronic crossover for accurate, harmonious and well-defined separation on each part of the frequencies.

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The shell chassis that were used to encapsulate drivers and other component parts are made of composite material and it takes the form of a typical UIEM-style design in a medium-size. The faceplate is made of metal alloy which appears to be sand-blasted while the cavity base were 3D-moulded resin material that were printed by HEYGEARS to achieve that light, consistent and smooth contours for better sealing and comfort. Like all LETSHUOER products, The CADENZA 4 still uses a 2-pin connector as its interlocking mechanism which is more stable and easier to detach.

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The CADENZA 4's stock cable has 2-core, multiple strands of high-purity silver-plated monocrystalline copper which is known for its seamless transmission of clean audio signal. It also has a modular termination plug system where we can swap termination plugs that makes this set more versatile and compatible to be used on devices with its angular design.

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Aside from its stock cable, LETSHUOER also released their new upgraded cable, the LR-Nebula. It is a 2-core braided 6N high-purity monocrystalline copper cable with malleable ear hooks. The particular material will deliver a seamless audio signal transmission and improve conductivity. It uses a 0.78mm bi-pin connector which compatible to all LETSHUOER set and other IEMs with compatible connector. The connectors and termination plug is gold-plated to lessen oxidation and resistance to corrosion.

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Its overall build quality is somehow sturdy enough yet supple and flexible to touch. You choose either a standard 3.5mm single ended or a 4.4mm balanced upon ordering.

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As for its product packaging, LETSHUOER is known to have a well-done product presentation on their items. The packaging box of CADENZA 4 is a quite bulky rectangular one and as we all know that LETSHUOER is also quite generous on inclusion of accessories.

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Here are the following contents on LETSHUOER CADENZA 4's packaging box:

  • Pair of LETSHUOER CADENZA 4 IEMs.
  • Modular stock cable.
  • Termination plugs (3.5mm SE, 2.5mm balanced and 4.4mm balanced)
  • Circular IEM case
  • Circular ear tips plate
  • Three (3) pairs of wide bore silicone ear tips in different standard sizes.
  • Three (3) pairs of balanced bore silicone eartips in different standard sizes.
  • Paperwork like product catalogue, user manual and warranty card.

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Regarding power scaling, CADENZA 4 is fairly straightforward in terms of amplification; with a sufficient amount of power output, this set is able to deliver a full-range sound. But there are some interesting things that this set is truly flexible in terms of driveability as if this device is paired on devices with high quality DAC/amps, it shows its true potential on why this item is one of the best sounding out there.

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To determine its tonal quality, this set exceeds my preferred sound signature as CADENZA 4 has that balanced-neutral sound profile that I truly adhere to. It has well-balanced bass and midrange frequency and just enough elevation on upper midrange up to the brilliance part of the treble region.

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(Graph was provided by @baskingshark , credits to him)


LOWS/BASS:

The overall bass quality of this set is more on a balanced side as it has a good sub-bass presence while maintaining a reasonable amount of mid-bass though it is more on transparent side to give that cleanliness, preciseband thumping bass response. This type of bass response is aligned with IEMs that were neutrally-tuned similarly.

Sub-bass presence is quite perceptible on this set on how it conveys a significant amount of reverberations and rumbling generated from instruments such as synthesisers, low tone bass guitars, octabasses and drum machines. Mid-bass appears to have a decent texture with good detailing on some bass-focus instruments’ and low octave male vocals’ note weight but it will sound a bit transparent and less robust bass quantity. On how I observe the tonal characteristics of each instrument, bass guitars have sustaining and raspiness on every plucking of its strings while bass kick drums have resonant and rumbling sound on them. Bass trumpets appear to have a full sound albeit it lacks that dark timbre as this particular instrument should have. Bass-baritones vocals sounds a bit leaner side that fact that its apparent inadequate volume and depth but at least it has those distinctive vocal tails that it has guttural and reverberating sound.


MIDRANGE:

This is the most prominent part of CADENZA 4's frequency spectrum and probably the main attraction of this set on how it presented the general quality of its midrange. This is absolutely one of my ideal midrange responses as it has this tidy, neutral and transparent sound while maintaining a well-balanced tuning with just a slight degree of warmth that will be beneficial for both vocals and some instruments’ tonal colour.

On male vocals, baritones have a smooth, sweet and lushness on them while tenors have clear, agile and ringing sound that leggero and lyric type of tenors will sound almost perfectly. And then on countertenors, they have these tender, graceful and lightness on their vocal quality. Female vocals like contraltos appear to have a sufficient richness and smoky on their voices while mezzo-sopranos have its velvety, graceful and smoothness to have that equanimous sound. Soprano vocals have a gleaming and crystalline sound that will be versatile to all types of soprano whether it is dramatic, lyric, soubrette or coloratura.

As for instruments, strings like guitars and violins, the former has an ample crisp, well-emphasis on its overtones and balanced sound on every pluck of its strings while the latter one has a vibrant and eloquent sound on every motion on its bow string. On woodwinds, flutes have rich, soft and silvery while piccolos have clear and graceful sound. Clarinets have these mellow and melodic sounds and the saxophones’ sounds mellow and velvety. Brasses like trumpets, horns and trombones have these vivid, mellow and smooth sounds respectively. In reference with percussive instruments, snare drums have clear and precise sound, tom-toms have a tad warm and resonant sound on every hit, field drums have this sonorous and majestic sound along with kettle drums that have those deep and a bit rounded sounding. Pianos appears to have an even and well-balanced sound with a hint of mellowness in its tone.


HIGHS/TREBLE:

The treble response of CADENZA 4 is relatively smooth and well-balanced; it seems that the gradual rise of the upper-mids then maintains an almost level presentation along with presence towards the brilliance treble region. That slight emphasis on the upper-midrange and presence gives a well-done clarity and some vocal definition and attack of instruments without having any harshness and sibilance.

On the brilliance part, it has a modest amount of airy extension with well-balanced and moderate sparkle to sound a bit glossy and on the satiny side. Cymbals have a lustrous and undulating sound while hi-hats have that shortened buzzing sound. Celestas have a silvery and soft sound, then on glockenspiels, they have a lustrous and tender sound.


SOUNDSTAGE, IMAGING AND OTHER TECHNICALITIES:

My estimation on how I perceived its overall proportion on its sound field that this set is capable of, it has an above average to wide lateral span on sound/speaker stage, with good height and ample depth on it. It somehow gives me a moderately spacious headroom within my aural perception.

Its stereo imaging projection somehow gives a holographic-feel in which I was able to locate the exact positioning of instruments and vocals in a sonic canvas where it has an excellent layering of frequency and dynamic tones, and a sterling separation of elements for a hybrid set. So playing complex multi-instrumental tracks will be easy peasy for CADENZA 4.

Cohesive performance of its hybrid drivers is quite stellar on how its dynamic driver is fast transient response without any distortion that works in tandem with balanced armature to have a crisp and detailed sound output. Resolution capabilities of this set is also good that it has a good presence of macro-dynamics with an impressive detail retrieval on extracting some nuances and subtleties of information like notation attacks, vocal ends and spatial reverberations.


PEER COMPARISONS:

AFUL PERFORMER 5


  • This is AFUL's first model and like the CADENZA 4, it also has hybrid driver configuration with one dynamic driver and four unspecified models of balanced armature drivers that are encased in a standard UIEM-type shell chassis made of resin material. Both sets offer good passive noise isolation as it is able to block some unwanted noises from the outside.
  • As for tonal characteristics, PERFORMER 5 has more colouration on its sound quality on how it was tuned as it takes a more U-shaped sound. It has more pronounced bass response but in slower and lethargic manner, a tad recessed but warmer midrange and an overboosted upper-mids that cause some shrill and piercing sound on female vocals and just a modest treble air extension.
  • On technical performance, PERFORMER 5 is quite a dismal one particularly on sound staging, a mundane cohesive performance of its drivers due to sluggish bass transient response and it's a bit unnatural tone and timbre.

KIWI EARS QUINTET

  • Another hybrid set from KIWI EARS, but this set has additional types of transducers like piezoelectric driver and “micro-planar” driver that make this set a “quad-brid”. While this set has a similarly built shell chassis with CADENZA 4 as it is also a composite one, its stock cable doesn't have a modular feature.
  • As for tonality, QUINTET has a mild U-shaped sound profile. While it has a similar bass response with CADENZA 4 as they are both on a tighter side, It has more brighter and energetic midrange and treble response with good amount of sparkle and more airier extension.
  • On technical capabilities, while both sets have similar sound/speaker stage dimensions, it is noticeable that the QUINTET has a lack of depth. But in some technical aspects, they are on equal footing.

THIEAUDIO HYPE 2

  • One of THIEAUDIO's affordable set and it is also a hybrid driver configuration. It has a dual dynamic driver in an isobaric array with two balanced armature drivers provided by Sonion. The drivers and other components are encased with UIEM-type resin shell chassis but its high quality stock cable doesn't have a modular termination plug option.
  • Like the aforementioned QUINTET, the HYPE 2 also has a mild u-shaped sound signature. Compared to CADENZA 4, it has more punchy bass response due to a more textured midbass, similar midrange and treble presentation as it maintains a neutral, balanced and smooth quality on them although it has a less transparent nature.
  • Technicalities-wise, it has very similar performance with CADENZA 4 in almost every category from sound/speaker projection up to the cohesive performance, although CADENZA 4 is a bit better on micro-detail retrieval.

As I conclude my assessment regarding this set, The CADENZA 4 remarkably does an excellent job in terms of tonality and technical performance that we will usually encounter with other sets at higher price tier. This also proves that LETSHUOER continues to evolve itself as a very competent and innovative audio company that audiophiles and audio professionals should pay a lot of attention to.

With a premium balanced armature drivers, high quality dynamic driver with electronic frequency crossover circuitry and the inclusion of a modular high quality cable at least than US$250/£200, and also has that tuning refined of having that balanced-neutral sonic profile, this set is certainly one of the best product releases in this year.

CADENZA 4 is now available at LETSHUOER's official online store, Check out the link below.

★★LETSHUOER CADENZA 4 - OFFICIAL★★


Also if you are interested on other LETSHUOER products, here are the following links:

◆ LETSHUOER GALILEO

◆ LETSHUOER S12 PRO

◆ LETSHUOER CADENZA 12

◆ LETSHUOER EJ07

◆ LETSHUOER EJ07M

◆ LETSHUOER EJ09

◆ LETSHUOER CONDUCTOR (First Impression)

◆ LETSHUOER D13

◆ LETSHUOER DZ4


◆ LETSHUOER S15


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SPECIFICATION:

MODEL:
LETSHUOER CADENZA 4
IMPEDANCE: 15Ω
SENSITIVITY: 102dB
FREQUENCY RESPONSE: 20Hz – 40KHz
CABLE LENGTH: 1.25m
PIN TYPE: 2-PIN CONNECTOR
PLUG TYPE: MODULAR (3.5mm, 2.5mm. 4.4mm)
DRIVER UNIT(S): (1) DYNAMIC DRIVER + (3) BALANCED ARMATURE DRIVER(S)

MY TEST TRACKS: ( * = 16-bit FLAC, ** = 24-bit FLAC, *'* = MQA, '*' = DSD, *'= .WAV)

Alison Krauss -When You Say Nothing At All *
Jade Wiedlin - Blue Kiss**
Led Zeppelin - When The Levee Breaks **
Mountain - Mississippi Queen *
Queen - Killer Queen **
Guns N' Roses - Patience *'*
Eric Clapton - Tears in Heaven '*'
Sergio Mendes- Never Gonna Let You Go '*'
Pearl Jam - Daughter **
Roselia - Hidamari Rhodonite *
Assassin - Fight (To Stop The Tyranny)*
Celtic Frost- Visual Aggression *
New Order - Blue Monday *
The Corrs- What Can I do (unplugged version) *
Jimi Hendrix Experience - Voodoo Child *
The Madness- Buggy Trousers *
Metallica - Motorbreath **
Mariah Carey- Always Be My Baby *
Destiny's Child - Say My Name *
Malice Mizer- Au Revoir *
Mozart - Lacrimosa *
New York Philharmonic Orchestra - Dvorak- Symphony 9 " From the New World." *
Eva Cassidy - Fields of Gold (Sting cover)*
Michael Jackson - Give In To Me *
Exciter - Violence and Force *
Diana Krall - Stop This World **
Debbie Gibson - Foolish Beat *'*
The Sisters of Mercy – Lucretia My Reflection**
Suzanne Vega – Luka **
Lauren Christy – Steep *
Ottoman Mehter - Hucum Marsi *
Diana Damrau - Mozart: Die Zauberflöte*



P.S.

I am not affiliated to LETSHUOER nor receive monetary incentives and financial gains as they provide me a review unit for an exchange of factual and sincere feedback from yours truly.

Once again, I would like to send my gratitude to IVY GAO and BETTY for providing this review unit. I truly appreciate their generosity and trust towards me and other reviewers.


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TsukiGermany
TsukiGermany
Great review! They look like an apple product to me, quite nice. The nozzle looks like a thick boy though. Do you know what size it is? The Hexa was my first nozzle nightmare hahaha :)
Zerstorer_GOhren
Zerstorer_GOhren

NymPHONOmaniac

Headphoneus Supremus
Pros: -smooth coherent and musical harman tuning
-warm neutral that is near mid centric
-dark smooth but not dull treble
-beautifull sub bass and bass line with mellow slam
-non thin mids
-sonion BA for mids that deliver natural timbre (improved with cable choice)
-very beautiful male and female vocal (lush and upfront)
-open spatiality (good soundstage-3D holographic)
-safe tuning
-refined musicality that is versatile
-great sound layering and transparency
-non recessed mids
-excellent cable
-excellent accessories (including box!)
-logical DZ4 upgrade
Cons: -lack of treble extension-sparkle-air-brilliance and snap
-mid bass isn't hard punch and don't make me head bang
-safe tuning isn't for everyone
-bass definition is a bit blurry
-construction design will not be for everyone
-big nozzle might not fit all ear canal
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TONALITY: 8.5/10
TECHNICALITIES: 8.2/10
TIMBRE: 8.5/10 (with Nebula cable)
SOUNDSTAGE: 8.5/10
IMAGING: 7.8/10
MUSICALITY (subjective): 8.5/10
CONSTRUCTION: 8.2/10
ACCESSORIES: 9/10
SOUND VALUE: 8.2/10


INTRO

Letshuoer is a well established earphones company from China that specialize in hybrid IEM of all types, from multi-DD (DZ4) to hybrid (EJ07M-EJ09) to planar (S12-S15).

Today I will review their latest release, the Cadenza 4, which is a follow up of the Cadenza series that has another flagship model called Cadenza 12.

The number stands for number of drivers, so for this Cadenza it means we have 4 drivers: 1x 10mm beryllium coated DD+1 sonion BA and 2 Knowles BA.

Priced 240$, the Cadenza promises high sound value and a ‘’melody of enchantment’’!

As well, the acoustic implementation of drivers is enhanced with 3D printing technology which permits to tube all drivers precisely and avoid unwanted resonance or distortion or inter phasing; it uses a 4 way electronic crossover to achieve precise tuning coherency.

All this is beautiful on a sheet, but let's see how it translates in musicality and technical performance in this review.


CONSTRUCTION&ACCESSORIES

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The Cadenza uses a similar construction material and process than both DZ4 and S15, it’s made with a 3D printer machine and uses a soft matte plastic that is both thick and light.

The design will be hit or miss depending on your aesthetic taste. Personally I like it more than S15, it’s sober and elegant with a back plate made of carved metal with intricate reflection pattern and universal ears shaped front plastic shell. The nozzle is long, big and thick, so it can be worn in a deep or shallow fit way, if you have a large enough auditory canal.

On the top we have 2 pin female connectors that are flat in alignment of housing, it’s not recessed so all types of cable (apart QDC) will fit it, be aware to be cautious to not bend the pin when connecting it though.

All in all, I can understand some people finding the construction ‘’toy-like’’ but if the back plate is solidly glued and never falls, I feel the construction is good. I love the matte finish and comfortable ergonomics.

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When it comes to included cable, we are quite spoil.It’s a high quality modular cable made of silver plated high purity copper with a total of 365 copper strands twisted in 2 big cores. We have 3 plugs to cover all our source needs (2.5, 3.5, 4.4). The cable design is very beautiful and has a metal cable splitter that is eye-catching. If effect audio was selling this cable, it would surely be 200$. Big plus: the plugs are L shaped!

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Then when it comes to packaging, that’s another positive surprise since the box is a valuable accessory on its own. It is like a mini drawer for IEM accessories. I really like when a box can have a second life and will surely use this box for ranging my IEMs.
In terms of other extra accessories, the modular cable was enough to make me happy but we have a nice carrying case and 6 pairs of silicone eartips too.


SOUND IMPRESSIONS

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(shallow fit using short wide bore Vocal ear tips not the one on this pic which is Balanced tips)


The tonality of the Cadenza can be summarized as smooth, balanced and safe. To my ears it sound warm neutral with a notable sub bass boost that had a safe mellow creamy slam and rumble to otherwise lean and buttery smooth musicality that has an harman target DNA without the thin or shouty mids going on, it’s among most natural sounding hybrid of this type I’ve hear, it remind me of YanYin Canon 2 at first listen but with lusher mids and more natural timbre and thicker darker treble.

The bass is warm and vibrant, it’s lush and not thin nor boosted in resonance, which is something I notice with all last letshuoer IEMs using this unique type of plastic that seem to have a damping effect when it comes to bass slam acoustic cavity reflection-resonance.
While bassy, the Cadenza isn’t a basshead IEM, it doesn’t deliver a hard thumping punch, the slam is a bit ‘’pillowy’’, which is cozzy for long listening free of hard hitting sound pressure.
It’s a dense and weighty low end, with plenty of juice and a colorful vibrancy that favor cello and double bass, adding a polished grunt and an appealing euphony.
The transition in lower mids isn’t sloppy nor feeling detached and clinical, it flow organically with other BA driver, it match the timbre too, which can even make you question yourself about listening to a 1DD+3BA hybrid since it’s so cohesive in timbral and tonal balance that it feel like listening to an excellent planar IEM.
This type of bass don’t distract the listener by dominating the mix, it serve as a meaty sit for the fundamental as well as enrich the timbre richness, this is a versatile bass performance that suit very well jazz but deliver enough weighty boom for electronic, pop, soul and R&B too, this is for controlled lush rumble lover too since the sustain is tactile and gently boosted without excited paced release.
Music styles that do less well will be fast aggressive rock, electric bass lack a bit of grit and proper bite as well as kick drum don’t deliver nervous thumping, we can say it delivers rock music in a warm, dark and overly smoothed macro dynamic way.
Overall bass is the guilty pleasure part of Cadenza adding warmth and a thick addictive rumble that favors the tone of instrument before it’s texture or clarity, it excels with the cello so if you're a fan of this instrument you’ll be in for a lot of joy.

The mid range is very focused but lean in dynamic, which can make me consider these IEM as near mid centric since both male and female vocals are upfront and fully bodied, but smooth and natural in timbre too.
The piano too is full in presence, but softens in definition sharpness and texture grain, the note has plenty of weight and sustain-release isn’t compressed, it blossoms fully and warmly. Piano notes stay in place with a controlled dynamic that doesn't favor higher pitch range, this is what I mean with focused mid range, something that isn’t too unbalanced in upper mids loudness nor lacking too much lower mids sweetness.
Those sensitive to sibilance, shoutyness or upper mids agressivity will find the mids cozzy, those that tone color over texture details too, because we are in slightly dark mid range territory, it’s not the most open and crisp mids, nor the most transparent or well defined.
I find the vocal to sound better in lower range, like alto and contralto for female singer like Arooj Aftab breathy lush voice is more open in presence and complete in harmonic than soprano like Arianna Saval that feel a bit damped-lowered in tone, this mean male vocal sound quite good too.
I can’t overlook the fact that midrange feels a bit foggy and lacking in definition sharpness and spatial clean clarity, it’s not a very informative mid range in terms of micro details nor the best in terms of precise imaging.
It’s a safe mid range without any edgy texture spike nor loudness war between instrument, it’s a calm and contemplative center stage with filtered timbre that just keep sweetness of tone, it’s warm and permissive, it grow on the listener more he listen to it but never wow it with macro dynamic liveliness nor the crispness or openness of spatiality.
Overall mids will be perceived as recessed by some listeners due to their lean nature in dynamic, so if you need a lot of upper mids presence brightness look somewhere else.

The treble is mostly dark with just an extra brightness spice in the upper treble to add minimal bite and crunch to attack, still it’s very safe and don’t expect sparkle or brilliance since there is barely none (BA can’t produce proper brilliance wtv price range).
It’s not a thin treble, acoustic guitar sounds meaty and full in tone, quite natural but just a hint scooped in proper note release, still it sounds well balanced within other instruments and its presence is bright enough to not be put in second stage when it’s not supposed to.
The percussions are well layered and don’t dominate the mix, they aren’t aggressive nor splashy but complex percussions variety will get some sound info get lost, it’s not very easy to follow each cymbals and when if go very speedy the lack of proper attack lead sharpness and texture will make the readability even harder.
Simply put it’s not an analytical treble at all and there is nothing to get wowed about, the rolled off extension after 10 kHz is my main qualm as well as overly damped attack edge.

The soundstage is very ear tips dependent and even with short wide bore tha open it up it’s average wide, above average tall and under average deep. It feels like a big ‘’helmet’’ you put your ‘’small’’ head in, it’s holographic and immersive, you put yourself in the middle of music and can feel part of the band sometime.

While not bad, the imaging is not a highlight of the Cadenza, macro dynamics feel foggy in terms of sound layers blend, even if layering is decent it’s not well defined in ‘’enveloppe of presence’’ so you struggle to precisely position each instrument. Bassists are easiest to pinpoint, then mids instruments will be very centered but if there are a high amount of them it will multiply macro imaging darkness.

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SIDE NOTES

These have both rather low impedance (15 ohm) and sensitivity (104db), this mean Cadenza are easy enough to drive but will benefit extra dynamic heft from proper amping gain, cleanest amping is the best but these don’t seem that capricious about impedance gain, anything 1 ohm or lower should do, i’ll suggest a minimum of 100mW@32ohm to be sure the dynamic is awake which will translate into more open and better articulated spatiality.

When it come to eartips, i find short wide bore (vocal) eartips the best when it come to soundstage and presence of instrument fullness, its hint warmer and bassier as well as more mid centric than Balanced ear tips, which compress spatiality and push forwards upper mids, with those, treble is sharper so percussions are more snappy but i miss stereo openness and smoother balance of wide bore ear tips.

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Then when it comes to cable, it’s true the Cadenza benefits from even higher quality than the stock one which is very good and doesn't justify an urgent upgrade.
If I use the Letshuoer Nebula cable timbre become smoother and less noisy, bass is lusher and more complete and dense in tone, mids aren’t as edgy and boxy and treble is less splashy, in other word: dynamic is better control, without any intensity spike and Cadenza sound notch warmer and more mid centric. I prefer this cable pairing yet don’t understand why it isn’t a modular cable. Quite a bummer in that regard since this cable is quite expensive (165$)




COMPARISONS

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VS HISENIOR OKAVANGO (1DD+6BA-300$)

The Oka is more W shaped and bassy as well as a notch brighter, it’s less smooth and lean sounding than the more neutral and darker Cadenza.

Oka bass have weightier and more impactful mid bass, the sub bass is slightly less extended and articulate in bass line, while the kick is chunkier and less warm-dark, rounder and better defined in punch. Basshead would prefer the Oka while the purist will prefer Cadenza. Bass tone goes to Cadenza too, bass lines are less resonant and boomy as well are lusher but the punch is more mellow and dull.

Mids aren’t has cohesive in timbre with DD bass and show that more BA of inferior quality isn’t the best choice for the Oka in term of tone balance since the timbre is more grainy and thin, yet it’s less dark and static than Cadenza, better layered, clearer and more open as well as higher in resolution and micro details, the attack feel faster and less damped-smoothen too. But the vocals of Cadenza are notably more enjoyable to my ears.

The treble is notably superior with the Oka, it's more snappy in attack, more extended and airy as well as more generous in effortless micro details. Percussions are better defined and extracted, they are sharper in definition and less euphonic and thicken in timbre.

Soundstage is notably wider and deeper with the Oka, not competition here.

Same for imaging, which is quite dependent on treble capacity, so while the tone of 6BA is harder to match the layering and imaging capacity sure is more capable.

All in all, the Okavango is without a doubt superior to Cadenza 4 in terms of plain technical performance like imaging, attack control, macro dynamic and clarity but timbre and tonal balance wise the Cadenza is more natural and offers more pleasant vocal and lusher thicker bass too.



VS QOA AVIATION (1DD+3 knowles BAs-200$)

Aviation is slightly brighter and more W shape and energetic.Cadenza feel leaner in dynamic and more U shape in balance as well as darker in resolution

The bass hits harder but doesn’t rumble as much and isn’t as thick and lush, separation is clearer and kick drum is more textured, the attack is better controlled and faster, it has wider headroom after impact. Cadenza is all about sub bass thickness and lushness, which is more captivating and musical in its singularity but when it comes to mid bass the role changes and its QOA that entertains more.

Mids are crisper, more open and energetic with QOA, it has more note impact as well as less lean dynamic, female vocals are more bright and upfront yet still lush and as thick as Cadenza, it’s more textured and the attack lead and bite is superior too. Cadenza mids suddenly sound quite muted and I need to crank up volume to wake up enough of the dynamic, in that regard QOA is more previsible and coherent in its macro dynamic loudness balance.

The treble is brighter, more snappy and analytical with QOA, it has more air and sense of speed is greater as well attack lead has more bite so the percussions are easier to find and follow but some instruments like electric guitar can be borderline splashy. Cadenza is safer and darker-smooth in balance.

Soundstage is about the same wide but slightly deeper with QOA.

Imaging is superior in terms of sound layering separation which is more articulate and presence of instrument is more underline too.

All in all, the cheaper Aviation is superior in technical performance and I do prefer its more lively and fun tonality too, but treble sensitive people will most likely prefer the Cadenza 4. It must be noted construction is superior too (and sexier) with Aviation.


CONCLUSION

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Once in a while I have to use the term ‘’Jack of all trades, master of none’’ to summarize an IEM persona and this fits the smooth versatile tonality of Cadenza 4 perfectly. In this case, it's a compliment, it mean it's so well balanced I can't fault anything in term of tonal cohesion.

I will never use this descriptive for too bright or too warm IEM, nor for clinical-neutral one, and the Cadenza can feel refreshing in it’s safe but lush, dark and gently bassy U shape tonality….if their DZ4 didn’t exist because both these IEM are very similar in musicality, so you can see the Cadenza as direct niche upgrade to this very IEM.

And yes, we are in warm harman target territory à la Simgot EW100 and then i would say direct upgrade to the Cadenza 4 is the EJ07M which I suggest you to directly jump to since technical performance is from another level and can compete with most sub-1000$ IEM out there.

The fact i'm not suppose to love harman tuning yet love the Cadenza mean that your aren't obligate to endure shouty or thin mids with all harman target based IEM, this is the solution for those who can't stand the Moondrop and Crin approach of harman target. I will even say, this is the solution for those that find Simgot harman tuning too bright too.

Since I love both DZ4 and Cadenza 4, i think the tonal balance ideal of Letshuoer reach more my soul and my concept of musicality where timbre and tone fullness is of prime importance. One thing sure, these IEM are a statement of refinement when it come to tonal balance but it isn't made for basshead and treble head nor those seeking intense Wow effect.

All in all: Highly recommended!




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PS: I want to thanks Letshuoer for sending me this review sample as well as giving me white card for full freedom of thoughs. As always, i don't have direct affiliation and make zero $ with this review.

You can order the Cadenza for 230$ (pre-sale price, msrp 250$) here: https://letshuoer.net/products/letshuoer-cadenza4-wired-iem-hifi-earphones-in-ear-monitor
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scottbaba
What do you mean by "HeyGears" build?
NymPHONOmaniac
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David Haworth
Good review> I agree with most of your observations esp eartips and a good seal. The word I use for Cad4 is balanced, beautifully balanced.
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