LETSHUOER DX1

TONALITY: 8.2/10
TECHNICALITIES: 8.5/10
TIMBRE: 8.8/10
SOUNDSTAGE: 7.5/10
IMAGING: 8.5/10
MUSICALITY (subjective): 7.8/10
CONSTRUCTION: 9/10
ACCESSORIES: 8.5/10
SOUND VALUE: 8.5/10

Letshuoer is a well established IEM company from China.

I’ve reviewed most of their IEM apart from Cadenza12.

Today I will review their latest release, the DX1.

Priced 200$, the DX1 is a flagship single dynamic driver IEM using a very special DD made of aluminium and magnesium alloy with a topological diamond pattern diaphragm. It uses a special notch filter that attenuated a specific 5 kHz frequency range.




We know that sub-300$ market of single DD IEMs is among most competitive one in audio industry, here Letshuoer wasn’t lazy in term of acoustic engineering so let’s see if the DX1 is a worthy contender both in musical and technical department of just one more overpriced single DD.

CONSTRUCTION&ACCESSORIES



As Letshuoer state:

• The DX1 features an electroplated stainless-steel shell with a sleek, smooth texture and high-end metallic finish.
• Its champagne gold diamond-patterned panel complements the geometric diamond topology coating on the driver.
• The shell shape is ergonomically designed, drawing on LETSHUOER's years of custom earphone expertise, thereby avoiding ear canal pressure that can result from extended wear.

And indeed, the construction is both elegant, luxurious and sturdy looking. Metal doesn't seem to scratch easily, it’s a bit on the heavy side and the nozzle is a bit short so if you use a tight ear hook the fit might be complicated. Craftsmanship doesn't feel like 200$ IEM, more like kilobuck one. I like L and R engraved under the 2pin connector which feel super sturdy too.

One thing to note, slight driver flex can occur, especially with short wide bore eartips.



When it comes to included cable, it’s of good quality and very thin and light, yet it uses 256 silver plated cores. I like the L shape plug and you can choose 3.5mm or 4.4mm termination. Still, i feel this cable dont wake up dynamism of sound enough, so if you find your DX1 too flat sounding, you might want to upgrade for something like Simgot LC7 or Penon Quattro cable (no ear hook is a plus too for DX1 i think).



In terms of packaging and accessories, it’s quite impressive. The box is very beautiful yet not absurdly big. It includes a very nice and ultra sturdy metal storage case that I think is waterproof too. We have an impressive amount of 9 ear tips in 3 models which even include that Tri Clarion, as well as short and long wide bore. Nothing to complain here apart that I tend to use other eartips to achieve the best sound balance possible.


SOUND IMPRESSIONS



The tonality of DX1 sits between neutral and L shape, it’s smooth and clear, like a ‘’romantic monitor’’ musicality with great focus on midrange which is the star of the show, in a non overly energetic or loud way. We have slight sub bass boost, then the whole mid range is gently boosted with just minimal warmth to it from lower mids, upper mids are rounded not spiky or shouty and treble is mostly lean with just enough spice to give energy and bite to attack.

This is a 55% technical and 45% musical IEM in term of sound experience balance, lukewarm is the tonality, not too bright nor too warm, and this isn’t what i would call fun or highly engaging sound too, since it’s on the lean side of macro dynamic and not for basshead nor for treble head.

The bass has a mellow mid bass punch which is slightly warmed and rounded by sub bass release, it’s speedy but sustain is more boosted than attack lead, it’s not a clean mid bass, nor very well defined one, it’s there to have minimal dynamic to kick instruments.
Sub bass is thicker and more vibrant, slightly compressed in sustain so we have fleshy attack, electric bass delivers grunt when needed, it’s not dry nor thin but doesn't induce rumble nor slam resonance nor widen the soundstage with air release.
It’s not a bass that has a big sense of impact and macro dynamic energy, it benefits acoustic instruments like cello which sound wonderfully realistic and clean, well defined in presence and controlled with attack.
It often happens that speedy drums impress me, should it be toms or kick, the transient of DX1 is very agile and fast yet has this uniquely short sustain-release warmth that thickens and makes a more weighty drum part, without ever being dominant in the mix.
It happens that with some track kick and bass line feel more distant than the rest of the instrument, smaller and more compressed in presence too, so I would not suggest DX1 for anything bassy, nor for electronic music, these shine with true acoustic instruments which is a sign of mature refinement. Sorry basshead, DX1 isn’t for you! Which doesn't mean bass quality isn’t there, since the bassist sounds great, and even if relaxed bass doesn't sound thin or lacking in harmonic fullness.



Mid range is the star of the show, which doesn't mean it needs to be aggressively upfront and overly bright in presence and upper mids boost, here it’s well rounded clear mids in open but intimate and centered stage. Fans of acoustic instruments will feel spoiled with the DX1 since they all sound natural and well carved in presence, piano isn’t recessed nor thin and have proper note weight, cello while shorten in presence due to slight sub bass roll off is dense and rich and I don’t mismatch it for violin, which is among most beautiful instrument rendering of DX1, an IEM that shine with classical quartet and various style of instrumental music.
If i underline violin goodness it’s because i often find it either too warmed or too boosted in upper harmonic and DX1 nail fullness of presence with rich texture and weighty abrasive attack lead without affecting timbre realism, dynamic energy and loudness spike negatively, it’s speedy and tight in attack, with shorten resonance so no long decay after bow hit the string yet this bow movement has density we can feel it’s vibration, this make it for very fascinating strings session and add the fact imaging is good and multiple strings can cohabitate in open center stage and you're in for high fidelity pleasure we rarely find in sub-200$ price bracket.
I underline both male and female vocal sound full and presence, they aren’t wide and diffuse with their loudness release which can feel a bit static in rare cases but will please upper mids sensitive people too. Since this presence doesn't blossom wide it doesn't mask other instruments layers too. Vocalist are very focused and timbre is among most realistic and natural i’ve heard in this price range, female vocal are superb, smooth yet well define with natural color to it’s lushness and rich texture that isn’t forced, same for male vocal so this is true specialist of mid range as said. Since I listen to a wide range of female vocalists, the fact DX1 covers it all without going thin, dry or harsh is a true blessing.
With DX1, I can enjoy such a diverse palette of mid centric music, it goes from chamber classical to choral to opera to folk to jazz to country to soul to pop and never the vocalist gets lost in the show, nor stole presence of other instruments too much. I do think Letshuoer achieve a new benchmark of mid range reference, which it’s smoother than those thinked for monitoring purpose, which to some extend DX1 can cover too.

The treble is lean and extended, smooth up to the top which is delicately crisp. It’s not half cooked in the sense we have plenty of effortless sound info and more than capable micro dynamic rendition, which isn’t aggressive nor forced on the listener, so lazy ears might think highs are dark when in fact they are very rich with impressive transient speed and control.
Lower treble is creamy, it’s not crunchy abrasive highs, yet the attack lead of violin and guitar is weighty and authoritative enough. Distorted instruments like electric guitar lack a bit of zeal and dynamism, but it’s an exception and not a real acoustic instrument, for all unplugged ones, it’s where DX1 shine.
Acoustic guitar has both fullness and crispness, with natural brilliance to string pulling which is dynamic without being overly sharpen in metallic swing, the release blossom shortly, we don’t have boosted resonance of instrument which permit to keep macro dynamic clean and articulate without multi masking of instruments attack release.
It’s airy but there is not wide space between instruments so air around it is still limited.
Percussions don't dominate the soundscape, yet it’s in the back with sharp enough definition and speedy attack and tight control, there zero splashing or over excited dynamic loudness, zero spike that will make balance uneven, it’s organic as a whole but with extra sense of fine layering that can had stereo micro dynamic or background clean layers.
This is a safe, refined and well extended treble with impressive technical capabilities, that don’t need to go violently analytical to impress the listener with sound info diversity.

The Soundstage is one of few cons for me, it’s on the closed intimate side, it’s not very wide nor very tall, but the sense of depth is good and even if small i never go congested or plain in your head.

This is why Imaging is so good i guess, apart kick drum that i can struggle to pinpoint, from bass line to all mid and high range instrument the definition is well layered and very accurate in positioning, as noted space between instrument isn’t widest so it’s in a small space you can position instrument, vocal will be more centered, violins more stereo if n orchestra, percussions can be stereo or left or right rarely centered etc. I would suggest these as monitor IEM for treble and upper mids sensitive musicians and producers.



COMPARISONS




VS TANCHJIM ORIGIN (1DD-260$)

The Origin is a notch warmer and more V shape with louder presence and female vocal and not as crisp nor as clean on top.

DX1 is more neutral to mid centric, it’s cleaner sounding cause their not as much mid bass boost which is leaner, less punchy and less textured and well rounded than Origin, sub bass in other hand is denser and more vibrant, better control and define, less boomy with DX1.

Mids are quite different, upper mids loudness peak is evident suddenly with Origin, vocal are not as full and well rounded even if wider and more loose in presence, we have sudden upper harmonic loudness with piano, vocal, saxo that isn’t there with DX1, as well, Origin is more prompt to slight sibilance while vocal of DX1 is more polished, less spiced, . Due to this loose presence openness peak, imaging isn’t as good with Origin, DX1 perhaps have more ‘’compressed’’ and rounded presence, but it makes instruments more defined in separation and layering, as well as having a bit more air around them.

Treble is crisper and more extended with DX1, it extracts more sound info-micro details and micro dynamic is notably superior to more relaxed and darker, dryer upper treble of Origin. Attack control is better too, less prompt to slight splashing or euphonic resonance.

Soundstage is wider and taller with Origin, slightly deeper with DX1.

Imaging is superior with DX1, positioning is clearer and more accurate, instruments are better defined and less prompt to mask each other in layering openness.

All in all, I love both these IEMs and DX1 is more neutral, a bit less fun and dynamic so for R&B, Soul, rap and even rock I would tend to choose Origin, while for classical, jazz and most instrumental music I would choose DX1. If i want to take a break from upper mids fatigue, i’ll go DX1 too.




VS NF AUDIO NA2 METAL (1DD-200$)

NA2 is more V shape, less smooth in balance, less mid centric and more bright and energetic sounding.

The bass hits harder, we have more slam and rumble is more resonant and wide, mid bass is punchier and rounder. Bass lines are more loose, less textured than DX1 which has better controlled and speedier transients.

Mids are more recessed yet with greater upper mids boost, so while brighter and less lean they are more prompt to harshness and shout, DX1 has more focused and open mid range which is cleaner and fuller sounding, bass sit far in the back so vocalist feel more upfront without needing upper mids loud boost. Timbre is smoother and more natural too.,Presence isn’t as wide as NA2 but better control in sustain release, less prompt to unwanted resonance.

Treble of NA2 is more textured and crunchy, electric guitar have more bite and energy, DX1 is leaner and more extended i highs which deliver more sparkle and brilliance on top so better for acoustic guitar, it’s less dry and thin too, less prompt to slight splashyness, it have cleaner air on top too.

Soundstage is taller and wider with NA2, while deeper with DX1.

Imaging is superior with DX1 due to more focused center stage and less interphasing between sound layers which are better defined and rounded.

All in all, those 2 are near opposite, NA2 Metal is more of an aggressively balanced headbanger V shape while DX1 is more relaxed and neutral, less engaging in macro dynamic but more capable in micro dynamic as well as smoother in balance and less harsh in timbre.


CONCLUSION



After having tested the Mystic8, it was clear that something unique happen with Letshuoer in term of tuning balance evolution, gone was the U shape balance of EJ07M and Cadenza4, gone was V shape balance of S12 too….Lethsuoer goes mature and neutral and seem to focus on timbre naturalness and smoothly focused mid range rendering.

This might be consider as niche for some, but the fact DX1 cover wide range of musical style is a statement of versatility….for anything that don’t need big macro dynamic rendering or proper bass punch, since these are docile sounding IEM that is antipode of basshead and even fun and engaging musicality.

The musicality is elegant, softly clear and clean without being cold, crisp without going too vivid or treble centric, it balances micro and macro dynamic hands in hands with an organic atmosphere rounding to whole frequencies range.

These are classical and instrumental music maestros that will wow violin lovers, but not only ,vocal lovers that always complain about too loud presence boost (like me) will be very impressed, piano lovers too since nothing sounds thin or tonaly off with DX1. From cello to acoustic guitar and even clavichord, these IEM render music with prime realism that feel intimate and focused in center stage where main instruments are highlighted. Add to this above average technical performance due to a DD with fast transient that is damped in it’s release spike so it stay smooth, and you're in for a special IEM that might become a classic, unless the lean punch less bass is too much of a compromise for you music style (electronic, rap, r&b, hard rock, metal).

All in all, I respect an audio company that pursues visionary tuning and the DX1 might become a new benchmark for neutrality, which is way more sane for your ears health than any harman, DF-neutral or monitoring tonal balance target.


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PS: I want to thanks Letshuoer for sending me this review sample. I'm not affiliated nor earn any $ writing this independent minded review.

Letshuoer has provided their first of a new line of IEMs to Audio Reviews Down Under Australia and we thank them for the opportunity to experience and review this
novel new IEM,the DX1.

Design
Letshuoer designed this compact metal shelled IEM with a 11mm driver that has Diamond-pattern topology diaphragm with aluminum magnesium alloy nano particles incorporated into it. They include a 5 kHz Notch Filter which they claim to reduce excess energy or resonance around 5 kHz to minimize distortion for optimal sound.
Letshuoer has provided a twin strand 256-Core silver-plated mono crystalline copper braided cable terminated in a 3.5mm L shaped plug. It's a very nice lightweight cable with good sound quality. My sample arrived with just the 3.5mm plug but I believe there is a 4.4mm option. In my opinion DX1 fights well enough at the $160 price point. The shells are marked with L and R but the cable just has the same embossed on the transparent plugs which is hard to read. Now that many DACs are being produced with both 3.5 and 4.4mm inputs it would be great if manufacturers were able to provide both options with a modular cable termination.


The shell has three vent holes but I did experience momentary driver flexon insertion. Obviously this did not affect performance and I haven't heard anyone else mention this so maybe just my ears! Supplied is the usual Letshuoer good selection of tips in three designs and sizes.For storage they have provided a puck shaped aluminum case/container supplied is a beauty. Lined with rubber and with a rubber cap that just pops off it's a good size and easy to use.




The DX1 sound is powered with a solid deep textured sub bass and augmented with crisp percussive mids. The bass/mid mix is just right to my ears. Metal bodied IEMs in my experience add a level of attack in the bass that resin bodied don't usually replicate.
Reflection.This set has the balance I like. Focus on the vocals superbly presented with solid satisfying bass that does not dominate and treble that's also complementary to the overall sound. There is plenty of air and space on offer even though the sound is full and resonant. Single DD IEMS like this that are well tuned are a delight.
The piano decay and timbre in “The Allcott” by The National is ultra realistic. Matt's vocal is husky and expressive. There's nice reverberation and space behind the vocals and well defined separation between instruments and violin backing.
If you'd like to hear some rock drums go no further than “Knock knock knock” By Spoon. Good weight to the kick drum and thwack from the snare. Plenty of width across the stage from various elements of this song.
Further listening to my library reinforces how good the soundstage is with the DX1. Song after song impresses with great width and good depth which aids the instrument separation and lack of congestion. The sound is spacious and effortless.




Comparisons

I have some single DD comparisons and one with a BA.
First the QDC SUPERIOR.V shaped single DD worth about $150.
Typical V shaped with solid bass , thinner mids and boosted bass. The QDC isa great example of this tuning done very well. The DX1 has a more textured bass still with some good depth. More mid bass slam and the midrange is considerably fuller. A better vocal set still with decent treble extension.




Next the Kotori Zephyr$150 with its additional BA and mid centric tuning. Zephyr is smoother and less energetic than the DX1. Bass is more sub bass focused and more relaxed. The vocals on both sets are quite similar with the DX1 holding its own. The DX1 rumbles more strongly and the vocals have more attack and energy. Treble is similar on both.
NFAudio NM20at $125 also a single DD is analytical and treble enhanced. How does it compare ? Well the energy level is very similar but the NM20 takes the upper mids and treble to a more detailed level but with more sizzle from the vocals to cymbals. Bass is similar to the DX1. The Letshuoer DX1 has far more body in the midrange. Plenty of details but fuller and warmer than the thinner NM20. It will be interesting to compare with the new NA20 when it arrives.




Conclusion


The DX1 is easy to drive from a modern DAC. It's not power hungry. It's compact shape sits rock steady in my ears and is very comfortable for long periods of listening. With its midrange focused sound and open detailed presentation it's another single DD that's it's easy to settle in for long enjoyable listening sessions. It's both musicaland analytical which is a clever tuning achievement so hats off again to Letshuoer. This driver is something special. I hope the DX is the first of a new range by the company.

thaslaya's star rating system:
☆☆☆☆☆ - Fantastic!
☆☆☆☆ - Recommended
☆☆☆ - There are buyers but not for me
☆☆ - Can't see the appeal
☆ - Product is a failure

Disclaimer:
This product was provided to me by Letshuoer in exchange for my impartial and honest review. I recieve no compensation and all thoughts and opinions are my own. A special thanks to Sherry for coordinating this set for review.

Non-affiliate link for those interested:
https://letshuoer.net/products/lets...-earphones-hifi-in-ear-monitor-gaming-earbuds

Gear used:
●Samsung Galaxy S25 Ultra
●HiBy R3 II
●Various DAC/amps

Source:
●Listening was done using Amazon Music HD/Ultra HD and local FLAC files.

Introduction:
Letshuoer has become one of my favorite manufacturers of late. I've had the pleasure of reviewing many of their products over the last year and, honestly, I have yet to be disappointed. From the more budget friendly S08 and S12 2024 planar IEMs to the all-BA Mystic 8 and flagship Cadenza 12, the hits just keep coming. The DX1 is their latest IEM which features a single dynamic driver and a price tag of $160. Let's break down the DX1 and see how it fairs against some of the competition.

Build, fit, ergonomics:
The packaging is quite nice, and the picture on the front features a large, stylized rendition of the DX1's hexagonal faceplate. The unboxing is simple and straightforward, and all the essentials are here. I was actually surprised by how small the DX1 shells are in person. The silver shells are made of aluminum alloy, have a nice weight, and feel very sturdy and premium in hand. The somewhat industrial style design is quite unique. The faceplate features a gold hexagon outline with a silver inlay and horizontal lines. The model name, DX1, is also featured on the faceplate of each shell. There's an extension featuring a flat, 2-pin connection that juts from the side of the shell. The insertion depth is somewhat shallow, and the nozzle measures 6.3 mm at the lip that helps to hold tips. The combination of small shells, unique shape, and shallow depth means the DX1 is not a good fit for me. I have large ears and usually prefer larger-shelled IEMs, but the DX1 should fit most people without issue. There are three vents located on the shell: one under the nozzle and two just in front of the 2-pin connection. The stock cable is made of silver-plated monocrystalline copper and is available in either 3.5mm or 4.4mm termination. It is on the thin side but is pliable, with a nice weave and texture. I usually prefer thicker cables, but this one is fine. I'm slightly disappointed that it is not modular, since other Letshuoer models around this price do have modular cables. The earhooks also tend to pull the IEMs away from my ears, unseating the seal and making the stock cable basically unusable for me. I swapped it out for the Trusted Audio 50 and XINHS S89 cables, which served me better. There are nine pairs of silicone tips included in three different styles, including three pairs of the Tri Clarion wide-bore tips. The stock tip options don't really work well for me, and I found the best fit with my trusty Penon Liqueur tips. The stickier texture helps me retain a good seal, but I still wish the nozzle was longer. The DX1 comes with the same Tupperware-esque puck-style case that is included with the Mystic 8. It's a nice enough case with a metal bottom portion and a rubber lid, but it's not super pocketable, nor is it the style of case I personally prefer. The only other accessory to mention is the branded Velcro cable tie. All in all, the accessory package is generally good (plenty of tips and a decent cable and case), but a bit of a letdown compared to other Letshuoers I've reviewed at a similar price.

Sound impressions:
I would describe the DX1's overall tuning as fairly neutral-warm, with a small sub-bass boost, slight upper-midrange emphasis, and a slowly rolled-off treble response. The note weight is perhaps slightly thicker than average, which I prefer to a thinner one. This set is easy to drive from a simple dongle and can reach loud volumes without the need for amplification. The detail retrieval is solid, and it's one of the better performers in this price range. The soundstage is somewhat narrow, but the depth is decent, and there is a certain fullness to it that I enjoy. It's as if the entire stage is being utilized, and nothing is wasted, but I would prefer it to be more expansive, with a little more space around the notes to allow them to breathe. The timbre is mostly good. Instruments, in particular, sound natural and correct, but vocals suffer from a slightly unnatural quality at times. The imaging is quite strong and impressive, both left to right and with distance. The dynamics are not the best, but also not terrible. The tuning holds up well despite the volume level but really comes to life at higher levels. The separation and layering struggle at times in more complicated tracks and can get a little bogged down. Notes tend to run together, and it can be difficult to discern where one starts and the other ends. On the flip side, there is a sense of cohesiveness throughout the frequency response that full-range single dynamic drivers do very well. Overall, the DX1 has decent technical performance for the price, with a few standout features such as the imaging, detail, and cohesion.

The DX1 is not the most source-sensitive set I've come across, but the source synergy still plays a vital role. The iFi GO link Max adds a bit more excitement and energy, but doesn't quite preserve the midrange presentation I prefer. The FiiO RR11 adds a nice amount of warmth and an analog quality to the tuning, but it sacrifices a little too much in the way of details and resolution for my taste. The HiBy R3 II is also a good pairing, as it plays up the DX1's inherent musicality. But my favorite pairing is the Muse HiFi M5 Ultra in transistor mode. It preserves the quality of the technicalities while injecting a small amount of smoothness that sounds just right to my ear.

●Lows - The bass is elevated just enough to stand out but still fall within that neutral target to my ear. It's more sub-bass focused over mid-bass, and there's decent extension, although not the lowest reaching. The rumble is pleasant but a little more on the polite side and the texture is quite clean. The decay is a bit on the quicker side of average, and I wish it would last a bit longer. The speed is quick enough for double bass kicks, but the lack of mid-bass impact makes it a bit harder to differentiate them as clearly as I'd like. The bass attack is lacking slightly, but there's a certain bounce and elastic quality to it that's very enjoyable, especially in pop tracks. There is no bleed into the midrange, and it is well separated, which makes sense given the somewhat low amount of mid-bass. Overall, it's a nice sub-bass-oriented low end, and the quality is solid, but I would welcome more quantity, particularly in the mid-bass, a bigger impact, and a bit of slower decay for my preferences.

●Mids - Even with a fairly neutral tuning, I think the midrange is the real star of the DX1. Vocals are forward and tasteful without any hint of shout. Female artists, in particular, take center stage and sound fantastic, unencumbered by other frequencies. Males sound great too, if not just a hair recessed in comparison. Actually, I think the entire lower midrange could use a bit more representation. Instruments here don't quite hold enough weight or depth for me, especially in orchestral arrangements. However, guitars sound great, and strumming is clear, concise, and detailed. All in all, I think the midrange could use a bit more emotion or heart to elevate it, but for neutral enthusiasts, it's very well done.

●Highs - The treble is on the more polite side but still has a great sense of detail and space, with just a touch of crispness. It is not particularly energetic or exciting, and it does roll off, but not too soon or steeply. What I enjoy most is that there is no harshness, sibilance, or fatigue, even at high volume levels. That being said, it could still use a touch more air and extension. Some treble notes, like snares and claps, lack crispness and almost sound a bit muted or incomplete. Cymbals and hi-hats, though, are accurate and clear, if lacking just a little energy in their delivery. While I enjoy the tamer treble response, and it is a decent match for my preferences, there definitely will not be enough energy, air, or sparkle for trebleheads.

Comparisons: Credit to Super Reviews and soundcheck39 for the graphs.

● DUNU Kima 2 ($100) - Here we have a matchup between two recently released single-DD IEMs. When it comes to accessories, the Kima sweeps the board due to its nicer modular cable, excellent zipper case, and better tip selection. Both IEMs have good-quality metal shells, but I prefer the Kima's matte finish to the shinier DX1. While design is, of course, subjective, I personally like the Kima's simpler aesthetic. Even though both are somewhat small in size, the Kima has the better fit for my ear. Neither set has a particularly energetic or exciting tuning. The DX1 is neutral warm, while the Kima has a more colored U-shaped sound signature. The bass on the DX1 is sub-bass oriented with a deeper extension, more even balance, a bit more resolution, and a cleaner bass-to-mids transition. The Kima is the bassier-sounding of the two, with more of a mid-bass focus, a nice amount of fullness, more rumble, a slower decay, harder-hitting impact, and slightly better texture. Also, the elevated mid-bass adds a nice warmth and coloration to the entire frequency response. Even though their upper midranges graph differently, they actually sound quite similar in-ear. I'm assuming the elevated mid-bass of the Kima is doing a lot to counteract that upper-mids boost. Here in the midrange, the DX1 is again the cleaner and better-balanced of the two. It performs particularly well with guitar strumming and lower-midrange instruments, which also exhibit a more natural timbre. However, vocals are positioned a bit closer to the ear. The Kima's colored midrange approach leads to more expressive and emotive vocals, but the lower midrange does suffer from some bass bleed. The treble of these two sounds quite alike to my ear. They graph very similarly above 6 kHz, and the rolled-off nature matches my preferences well. In the treble, both sets have a somewhat rolled off response that I prefer and neither exhibits any sibilance or harshness. The Kima does have just a bit more air to my ear, but it's negligible. As for the technicalities, these two trade blows, but the DX1 comes out on top for the most part. It offers a deeper and fuller soundstage, as well as better detail retrieval, imaging, layering, and separation. The Kima has more note weight, better dynamics, and while the timbre is close, I might give a slight nod to the DX1. Overall, these two have slightly different takes on a somewhat neutral tuning. The Kima is more about warmth and musicality, sacrificing some technicalities in favor of a more emotional and moving sound signature. The DX1 is definitely the better technical performer, but it loses a little heart and soul in the process. I'm slightly drawn toward the Kima 2, but my choice could honestly be a toss-up depending on the genre and my mood on any given day.
My pick: Kima 2

●Sound Rhyme SP01 ($90) - This is another matchup between two single-dynamic drivers but unfortunately, there's no graph available. The accessory packages of the two are pretty comparable. The DX1 has a slightly better cable, a few more tip options, and a nicer puck-style case, but the SP01 includes three swappable tuning nozzles. For this comparison, I used the SP01's balanced nozzle as it sounds closest to the DX1 to my ear. Both IEMs have metal shells with decent build quality, but the DX1 is heavier and feels more solid and sturdy. While I do not particularly love either of their designs or aesthetics, I prefer the DX1 because it looks more premium. Neither offers a really great fit for me due to the smaller shells and less-than-ideal insertion depth, but the SP01 is easier to fit and seal. As for the overall tuning, the DX1 has more of a neutral-warm sound signature, and the SP01's balanced nozzle is a little more U-shaped. To my ear, the bass is where the biggest difference lies. The DX1 has a polite, sub-bass-focused response that is a bit cleaner and better separated from the midrange. The SP01 not only has more bass quantity but it is also better balanced across sub- and mid-bass, with superior rumble, harder-hitting impact, and more overall fullness. In the midrange, the DX1 is more balanced across the entire mids, and lower-registered instruments are better represented. Vocals present very similarly between the two, but they are just a little more forward on the SP01, which is my preference. Both sets have a rolled-off treble response that I enjoy. Neither offers great air or extension, but nor are they harsh or sibilant. Cymbals, hi-hats, snares, and claps are a bit clearer and crisper on the DX1. The SP01 does have a tiny bit of splashiness in the cymbals, and some vocal "s" and "sh" sounds are more incisive, but nothing crosses the line. When it comes to technicalities, the SP01 has better dynamics, note weight, and soundstage width. The DX1 wins in soundstage fullness and depth, layering, separation, and imaging. The timbre and detail retrieval are very close, but I'd give a slight edge to the DX1. Overall, this matchup is very similar to the Kima 2 in that choosing between the DX1 and SP01 may ultimately depend on my genre of choice and mood at the time. While the DX1 is again the technically superior choice, it comes across as leaner and less musical. The SP01's extra bass and slightly more forward vocals are a better fit for my preferences and library, although the DX1 excels in orchestral and instrumental genres. The choice could be a toss-up, but the SP01 comes in at about half the price, and the addition of two other tuning options may just tip the scales.
My pick: SP01

● Kiwi Ears Orchestra Lite ($250) - Although these two have very different driver configurations (1DD vs. 8BA), they both have what I consider to be a neutral tuning. The accessories are about even. Both sets include nine pairs of tips, but I would say the DX1 has a slightly better case and cable. Their overall designs and build qualities, however, are starkly different. The metal shell of the DX1 is much smaller, heavier, and more sturdy. The Lite has a much larger resin shell that is better contoured. I prefer the Lite's design of the clear resin combined with a colored faceplate, and the shape, size, and nozzle length all amount to a better fit and seal for me. However, it is worth noting that the lack of ventilation leads to some pressure buildup, which the DX1 does not have. When it comes to tuning, the DX1 is more of a warm neutral while the Lite is somewhat U-shaped but still falls within, or close to, that realm of neutrality in my opinion. The DX1 is more sub-bass focused, with better extension and a cleaner texture. The Lite is mid-bass oriented, with more impact, a nice sense of warmth, and a slightly slower decay. In the midrange, the Lite is simply smoother and more pleasing to my ear. The vocals are a little more forward and exhibit a sense of heart and emotion that the DX1 lacks. While both do justice to lower midrange instruments, the DX1 is a bit better here due to the bass and midrange separation. As for the treble, the Lite is a bit brighter and more energetic, with just a tiny bit more air. To my ear, it has a more complete-sounding top end, although it can also have a very slight harshness with certain vocal notes at higher volumes. The DX1's treble definitely sounds a little darker in comparison, but there should still be plenty of sparkle for non-trebleheads. When it comes to technicalities, the Lite is pretty much better across the board, but the gap is not huge, and the DX1 manages to hold its own very well. For me, this matchup really comes down to musicality versus technical performance. The DX1 has quite good technicalities for the price, but it just lacks a little of that special musical quality that helps me turn off my critical listening ears and simply enjoy the music. The Lite has good technicalities as well, but there's also something special about the combination of warm mid-bass, vocal clarity, and smooth treble that is more than the sum of its parts. Those looking for a decently resolving, sub-bass-oriented neutral set are likely to enjoy the DX1, but I tend to lean towards a more musical presentation, and the Lite definitely delivers.
My pick: Orchestra Lite

In conclusion:
The Letshuoer DX1 is another solid IEM in the company's lineup. It has great build quality, decent accessories, and an impressive price-to-performance ratio. It has a warm-neutral tuning with good sub-bass extension, a clear and unencumbered midrange, and a politely rolled-off but very detailed treble. Unfortunately, my preference for bolder bass and a more forward, soulful midrange presentation steers me toward other IEMs in my collection. The somewhat narrow soundstage and lack of dynamism don't help either. That's not to say the DX1 is bad, by any means. The single dynamic driver is very cohesive, and I find it easy to listen to for hours without fatigue. It doesn't really do anything wrong, but for me, it's missing that "it" factor or something to elevate it further. It may not be the perfect all-rounder for my library, but it performs decently and actually excels with instrumental genres. I can easily recommend it for those seeking a neutral tuning with solid technicalities. Letshuoer has many proven hits in the IEM market, and although it is not my preferred tuning, I think the DX1 will be another success. Letshuoer continues to be one of the companies to watch, and I can't wait to see what they have up their sleeve next.

LETSHUOER DX1

Let's get started. First, let me thank Letshuoer Audio for the opportunity to listen to and review the DX1. When I was told I would get the opportunity, I was very excited, as I'd seen some preview material, and I'm also always on the search for outstanding single DD's that live outside the sub $50.00 range that my typical single DD purchases reside. That's not all that coincidental, as I've had some monumental and learn the hard way gaffes when it comes to purchasing mid-fi single DD's (Simgot EA1000, Oriveti OD200, Dita Truth all come to mind, sadly). Happily, this does not fall into that list of disappointments. On the contrary, I feel this might be a champion of sub $400 single DD's? But I certainly don't want tp get ahead of myself. I'll provide more details as to why in this review, and have fun doing it, because these IEMs are FUN! It's the key word in this whole review. We're talking FUN, but with ridiculously articulation from low end to treble! balanced, articulate, and FUN! Also gorgeously designed and built. The aesthetics are outstanding! So buckle your seatbelts and prepare for a 100% unbiased impression with heartfelt observations and thoughts. Now on to the FUN stuff.

@LETSHUOER Support @LetShuoer Audio




So the unboxing experience is typical Letshuoer, which means you're getting a classy experience, even when the overall accessories might be sparser than usual. The slip over says DX1 and the Letshuoer branding, along with the silver and copper design aspect of the shells. Gorgeous slip case. The hard box underneath is white and has more branding. Inside you get the IEMs, paperwork box, a puck style container with an unusual and unique rubber resealable cover, so you slip it on, and not screw it on like other pucks. Inside you find the 4.4mm cable, a bit thinner than usual Letshuoer cables, tips (which I always discard, as stock tips (except for S&S) never fot my caverous ears. They are always a size to small even when they are "large". That's it for the accessories, so as I mentioned, sparse, but still a cool aesthetic overall. The fit of those shells will potentially be divisive. Now for me personally, after I sat the Dunu S&S tips on them, it was a blissful fit, but before this particular tip, I found getting proper fit and seal a challenge. I was getting worried at first, but again, once I slipped XL S&S tips on the DX1, fit became snug, and ergonomics was immaculate. They are metal, so durability will not come into question, small, so they sink in my caverns, so the added weight of metal is not a problem, and comfort is supreme. But if you don't have S&S, or have smaller ears, or big ears, or your ear anatomy doesn't jive with the DX! like the Sony Z1R does with many ears (very similar shape), then it might pose a problem, but for me, it's comfy as the cool side of a pillow on a
summer night. I decided to forgo the stock cable for a nice colorway matching GY Audio 341 Monocrystalline Copper Silver and Gold plated cable. So similar to the stock in alloys, but with gold plating to help add more warmth. Now let's move on to what most of you are here for...the sound impressions!! But first, let's look over the published specs and the frequency response graph, then we get down to the nitty gritty.


THE SPECS :

LETSHOUER DX1

TECHNICAL INFORMATION :





Frequency Response Graph courtesy of @ToneDeafMonk. All rights reserved.

PRICE : $150.00-$170.00 (TBD)

Available for purchase at this location.

The Gear :

What did I use for my listening sessions for my review??

With the DX1, I used a wide range of sources that fueled my listening sessions. One such source that is no longer in my possession as of this writing is the FiiO JM21. It was used extensively in my listening, but will now only be listed for posterity, as it was sold recently in preparation for the arrival of the FiiO M21. All other sources are in my possession, including the Cayin N3 Ultra (Modern tube mode, H gain), Cayin Ru6, iBasso DX170 (high gain), Hiby R3 II, Sony NW-A306, iBasso Nunchaku, Sony NW-ZX100, Sony NW-A55, and not pictured (for space), the Dethonray Clarinet, Xduoo XD05T, and Little Bear B4-X. All provided high quality and in many cases TOTL playback for evaluation.



Music used for the review and all my reviews in general?

Ezra Collective - Dance, No One's Watching
Robert Glasper - Canvas
Aki Rissanen Aleatoric - Aleatoric
Mareike Wiening - Reveal
Paul Booth - 44
Bob Marley & the Wailers - Survival
Rob Van Bavel & Joris Teppe - Dutch Connection
Kaisa's Machine - Moving Parts
Esperanza Spalding - Self Titled
Junior Kelly, Bounty Killer, and Capleton - The Good, The Bad, and the Blazin'
Martin, Glasper, 9th Wonder & Washington - Dinner Party
Juan Ibarra - La Casa
Megadeth - Rust in Peace
Drive By Jehu - Self Titled
Cryptosis - Celestial Death
Crownshift - Crownshift
In Aphelion - Reaperdawn
Cradle of Filth - The Screaming of the Valkyries
Shuffled Classic Rock, Reggae, and Pop Music playlist

SOUND IMPRESSIONS :

Dynamics : 5
Resolution : 4.5
Details : 4
Instrument separation : 4
Imaging : 4
Low End Impact : 3
Sibilance : 2.5
Soundstage : 4

Overall score : 4/5

BASS/MIDRANGE/TREBLE :

The Letshuoer DX1, is the first single DD foray for Letshuoer since the Soloist in 2023. This driver is also "exotic", like the much cheaper but equally as unique Kevlar driver of the Soloist. Never heard the Soloist, so can't compare or comment, but if price positioning means anything, the DX1 more than likely is superior sonically? Now let's talk about the bass of the DX1. This might be the area of the frequency landscape that might be as divisive as the fit? Not that there's anything interently wrong with the bass response, it's just that it's a very clean, resolute, snappy, and punchy bass. While it can exhibit rumble at times, and has a very nice warm touch, it doesn't have the most present sub bass, and the mid bass is quite linear, so that the warm kiss you get in that mid bass region is missing in the transition to the lower mids, so essentially, the DX1 doesn't like sharing that warmth of the bottom end with the midrange, so some might percieve it as overly dry or thin in the note weight of the midrange. Now instrument weight, timbre, and tone that lives in that sub bass to the mid bass and right up to the lower mids, have a nice warmth and weight and snap and note resolution and elasticity that gives instruments nice energy and responsiveness, but maybe not the impact and rumble that any self-respecting bass head might desire. With just means that if you like your bass with a ton of note resolution and energy, then this will tickle your feels. If you're looking for gobs of mid bass, sub bass, and impact, then no, this is something to look away from. This is a case where you will hear every note below, but not necessarily feel all the notes.

I'll be beating the drum with this word over and over, but it's a term that hits like a nuclear bomb in describing the DX1, and that's resolution. The midrange is resolute, powerful, and clean as the thoughts of a saint. The level of transparency is impressive with this DL topology driver. The most resolute single DD I've ever heard previously to this, especially in the rumored price range of the DX1, is the Simgot EA1000, and well, the DX1 exceeds the EA1000 in overall transparency, resolution, and timbre. It's natural, it's crisp, and it's clean. Like 7-Up or Sprite! When you also get that energy from the bass with that transparent crispness, it's a details party! Instrument separation, details, and stage are working as one to provide a wonderful parade of dynamics and energy that in my case, is unequivocally addictive! Unless you're someone that needs a lush midrange. Then you will be disappointed. It's so clean and transparent, and without that bass bleed, it can show a thinness to the notes. Now it's borderline, because the bass response helps with musicality, as well as the treble, which we'll get to in a moment, so it's not like anemic or lacking in presence or timbre, but it won't satisfy anyone looking for lushness, or vocals with any warm texture or husky delivery, because it will be accurate and clean, but not as emotive as a lush midrange would deliver, and there are times when sibilance can rear it's head. This is more prevalent with female vocals, and with brighter recordings, like when I listened to 80's music like Madonna, Cyndi Lauper, Martika, or Tina Turner. You can pick up slight sibilance, and the lack of emotiveness in vocal delivery, but for me personally, this is such a nitpick, when overall, the midrange is a stellar show in glowing aptitude.

The treble region? did I mention resolution already? Well, it's true! The treble texture and timbre are a testament to crispness, shimmer, and resolute abandon! Air, air, air is the name of the game, and there's actually space between the harmonic overtones it seems. The outstanding soundstage is most likely helped along by the treble air, as the size of the stage belies the smallish size of the shells. There's a naturalness to the tone and texture, with cymbals and crashes just ringing on for what seems days, but it's done in a natural way, and no hint of the metallic timbre that can be heard in some artificially lifted cheap DD's. I haven't heard treble like this since the legendary HiFiMan RE0. Yeah, when the RE0 was released in 2010 (the early days of Head-fi!!), it was lauded for it's exceptional treble extension and air that was seldom heard at that time, and caused quite the sensation around these parts, and essentially put the legendary HifiMan brand ON THE MAP. This is the first time since I owned this particular IEM and it's follow up, the RE-ZERO, that I've heard this kind of extension, air, crispness, and texture out of a dynamic driver IEM. I currently own a HiFiMan RE00, but that anniversary remake of the classic RE0 does not have the tuning or extension of the original. I'd pick the DX1 nine times out of ten, without a doubt. The treble might also turn off sensitive folks, just like the RE0 did all those years ago. Some folks can't handle resolution like this, and it's understandable, but a treble head will cherish this response. Without a doubt. So will neutral heads. This treble is special.

Comparisons :



Sound Rhyme SP01 ($90) : So the SP01 was my favorite single DD before the arrival of the DX1. I actually still adore the SP01, due to it's versatility thanks to three tuning nozzles, which give you three different sonic signatures. With this comparison, I went with the Clear nozzle, which provides the most transparency, and would approximate the DX1 the closest. So for a/b purposes, I chose the album Moving Parts by Kaisa's Machine. The reason for it is it's a fantastic test track album for instrumentation, timbre, extension on both ends, and vocals. The first thing that stands out is that the bass of the SP01 is much fuller, impactful, and sub bassy than the DX1, but not as note resolving. It's warmer, but compared to the DX1, can almost come across as bloaty and bleedy. Now, it's not really that, but compared to the DX1, the bass comes off that way. Almost slow, next to the resolute, speedy, and snappy DX1. The SP01's bass is still more of an all-arounder for bass first music genres, like hip hop, reggae, and R&B, while the DX1 is a aural assault of goodness for jazz, acid jazz, and classic rock/prog rock. Midrange is more incisive and crisp with the DX1, as is the treble. That's probably where the two diverge, as the SP01 simply doesn't have the air, shimmer, resolution, and extension of the DX1. While the SP01's treble is crisp, controlled, and naturally textured, with very good extension, the DX1's treble is a tour de force that's uniquely tuned. DX1 soundstage is also more dimensional and spatial cues are more clearly delineated, while the SP01 is much warmer, and vocals are more emotive. Transparency and imaging are also in the corner of the DX1, while the SP01 has a fuller and thicker midrange note weight. So it just comes down to what type of tuning you prefer, and if you want more bass vs more resolution? So when it came down to personal choice, I was basically faced with a coin toss, so since jazz is my new love, the coin says heads : Advantage : Letshuoer DX1(by a coinflip!).

KZ ZVX Pro ($25) : The $25.00 wunderkind. Normally, I wouldn't seriously match up two IEMs so far apart in price, but in this case, the ZVX Pro is one of the most underrated, highly technical single DD in the entire hobby. I imagine part of this is due to KZ's penchant for flooding the market with every variety of IEM on a bi-weekly basis, and this amazing and amazingly affordable IEM didn't ge tthe proper shine. Well, I'm here to provide some of that shine, because it's deserving, and despite the price difference, these two tiny titans traded blows. Yes. the shell of the ZVX Pro is also very tiny, and ergonomically, about the same sixe, though shaped totally different. When it comes to the bass, the ZVX wins hands down. It's clean, resolute, but has more impact, punch, and rumble. Now it's not as snappy and note resolute as the remarkably able DX1, but it's not too far behind, while providing much more energy and impact, so that the bass has much more fullness and presence. Midrange has about the same thickness, which means not much, with transparency and cleanliness of the midrange, excellent spatial cues, imaging, and stage size (it's got a brilliant orbital stage), and crispness. Where the DX1 separates itself is in the overall resolution and note weight, where it wins out by a whisker, but a thick whisker. Treble is also airier, crisper, more naturally textured, and resolving with the DX1. Harmonic overtones and resonance are less brittle, and weightier with the DX1, but that doesn't mean the ZVX Pro is strident, and probably shows less penchant for sibilance than the DX1, since the notes are softer and less crisp in texture, so someone more treble or upper mids sensitive would have an easier time listening to the ZVX Pro than the DX1, but when push comes to shove, the DX1 is just bigger and better sonically, but the ZVX PRo, for $25.00, and fed r2r tech (Cayin Ru6), hangs right in there, trades blows, and poses a disruptive threat to any sub $100 set in the hobby. Advantage : DX1.


GY HiFi 341 cable + Letshuoer DX1

CONCLUSION :

The Letshuoer DX1 ended up being such a great surprise. I've had many Letshuoer sets in my rotation, and the semi-recent acquisition of the Letshuoer Cadenza 4 was a rocket to the top of my rotation, and it's maintained a top 3 ranking every since, beaten only by the ISN H60 and Penon Archangel. The DX1 has done the same for my single DD rotation. It rocketed right to the top. It speaks my language fluently, it provides me hours of blissful enjoyment and as a treble connoisseur, it showers me with the kind of treble that as mentioned, I only got from the RE0. The bass is linear, resolving, the midrange is incisive, transparent, and detailed, the soundstage is large, has excellent spatial cues and dimensions, and the treble is BOSS KING level, with maybe only the ISN EBC80, Juzear 81T, KZ ZVX Pro, Tangzu Legend, or Dita Project M able to come within shouting distance of the DX1, but rest assured, all of them fail to reach the extension and airy levels of the treble wunderkind called the DX1. The DX1 failed to get a 5 stars review only because it fails at being an all-arounder, thanks to it's linear bass. My 5 star champion must be an all-arounder, and cover the entirety of my musical journey. No skips or exceptions. But damn, did it come close! Held back only be some midrange thinness and lack of impact in the bass region. Nitpicks, but facts nonetheless. Still, I couldn't recommend this loud enough. It's a treble heads dream, a neutral heads orgasmic storybook, and my current favorite single DD IEM. It's an honor to have this in my rotation, and the behemoth that knocks the DX1 off it's pedestal will have to be just that...a BEHEMOTH!! Nothing less will be adequate.

RECOMMENDATION LEVEL : SINGLE DD ULTIMATE BOSS LEVEL - HIGH 9/10.

Thank you so much for reading and remember to be water with your audio luv! When you do...AUDITORY ZEN UNLOCKED!

​

Letshuoer DX1- Neutral Bliss


DISCLAIMER:

This unit was sent in exchange of my review and impressions. My thoughts and opinions are my own. Lets get started.

And ohh. You can also watch my video review here:




WHAT’S IN THE BOX?


The unboxing is quite nice for its asking price. You get their new case, which feels like a vaseline case,Hey I’m being honest.


The cables are nice looking and easy to manage. Although the low angled connectors might be a concern for smaller ears. It is easily fixed by heating up the angle to make it wider. Pretty simple unxboxing but very presentable. And it shows how letshuoer focuses their attention to detail. Simple but elegant. In the box, you get


-the IEMs


-256 strands silver playlter monocrystalline copper cable


-tri clarion eartips + wide bore eartips + narrow bore eartips


-vaseline case(nah just kidding haha)



BUILD and COMFORT


The shells are made of milled stainless steel that is reminiscent of Fiio and Dunu high end single DD sets. The driver is an 11mm aluminum magnesium diaphragm with an impedance of 30 ohms


As for the fit, they can be finicky depending on eartip. This is partly because of the angle of the cables. I tried divinus velvet eartips and I don't have any issues with comfort and fit.



SETUP:

-Shanling M3X and Snowsky JM21 using UAPP, Hiby and stock player


SOUND PROFILE


I would describe the signature of the DX1 as neutral with less emphasis in the upper mids. Most neutral sets have been following the etymotic gain wherein you see an elevation in the upper mids and a lesser bass. Letshuoer is trying to prove that neutral doesnt have to be shouty, and this is the fruition of that goal. Flat out neutral with good bass, mids and treble presentation.


BASS at 2hz?

Now hear me out, I know squig does not show frequncy below 20hz. But when we measure sets on REW, it shows how low the bass can go. The subbass of the DX1 suprisingly reaches very low that your ear dirt vibrates, making their way out of the canal lol.


This kind of presentation, paired with flat mids creates a stage that is open sounding, yet immersive at the same time. You usually get immersion with V or U shaped sounding sets, and it is a real treat to experience that immersion on a neutral tuned set.


Less Presence

As you may have seen on graphs, there is a recession in the presence region. It is not the first time Letshuoer did this. You can find this “experimental” recession with their planar sets like the S15 and the S08. This kind of presentation is well received because you don’t get the shout penalty when you turn the volume up. However, planars tend to do better in compensating the presence region with its treble. That is why, the S15 and S08 does not sound veiled in the upper frequencies.


It is a bit different with the DX1. Being a single DD, it is hard to do everything in the whole frequency spectrum. My point is, although you don’t get a lot of shout in the upper mids-lower treble, you also lose the edginess of string instruments. I’m not saying they are lacking, but it seems to be lacking the energy needed to portray a proper guitar shred.



One of the best neutral sets

Yeah I mean it. This might be one of the best neutral tuned set, especially in its price range. The midrange reminded me of its older brother, the Mystic 8. It has that nuance and openness to the vocals that make this set not only neutral sounding, but perfect for people who are looking for a great midrange presentation, except the guitar shered that is.



PROS

-very open sounding mids

-no treble peaks

-tight bass

-good volume scaling for a neutral set


CONS

-lack of midbass

-lack of bite in upper mids

-treble might be tamed for some



SCORING

-Please be reminded that my scoring is always based on its price range.


TUNING - 2.5/3

BASS - 2.5/3

MIDS - 3/3

TREBLE - 2.5/3

TECHS - 2.5/3


FINAL SCORE = 13

generally better than other sets. Very good for the price but the tonality might not match your preferences



Check my scoring here :


https://docs.google.com/spreadsheets/d/15WhgCgiMzWfF3ccgB8SK5-Cg7m87kpIShtxsyg2u-AI/edit?usp=sharing



GRAB SCORE:

This is easy, I just rate the set whether I would grab them for listening. Very subjective.


- I will never touch this again


- I grab if I remember


- Can be part of my rotation


- I break my rotation and grab this one today


- *** rotation, I’ll listen to these for the whole week


- Im selling everything, I will only listen to these haha.



GRAB SCORE: 2




COMPARISONS


DZ4

This is DX1's older neutral tuned set. They graph differently in the gain because the DZ4 follows a more traditional, elevated presence, but the openness in the mids and bass elevation is similar.


I think the DX1 wins it for me on timbral accuracy and openness. The DZ4 is nice if you want a more forward sounding mids and a more aggressive approach to instruments.


If your budget is below $100 bucks, maybe the DZ4 is a good choice, otherwise, pick the DX1 for more coherence and better volume scaling


Salnotes Dioko

Do you still remember this collab set with Crin? I know a lot of people do not like the treble on this one, including myself. But the midrange of the Dioko follows Crin’s old neutral target. If you prefer that kind of mids, I think the DX1 is the better pick because it doesnt have the treble peaks that the Dioko has and the DX1 sounds timbrally correct in comparison.


Hexa

The hexa is another nuetral set at a cheaper price range. It is unfair to compare both because the driver count is also different. My point is that, the hexa is a neutral set that has a more pronounced presence area, this makes cymbals and guitars forward sounding. The DX1 has a more laidback presentation in the upper mids and treble. One might prefer this kind of presentation if they are sensitive to peaks in the treble.


I think the DX1 is a safer pick if you don’t mind adding a bit of cash.


Mystic 8

I can’t help but comapre these to the more expensive brother. The bass and mid glide is very identitical on graphs and on listening. Both sound very open in the mids, and the only difference is how both present treble.


If you have the cash and prefer a more extended treble, then you should really try the Mystic 8.


If you want to know how the midrange of the Mystic 8 sounds, the DX1 is not that far behind. I can even see how some people might prefer the DX1 over the Mystic 8 just because of volume scaling and that bass impact from a DD.


FINAL THOUGHTS

There aren’t really a lot of neutral tuned sets in the market. The main reason is that most people prefer bassy sets, and neutral sets often become shouty and treble heavy when bass is reduced.


I think Letshuoer provided a very good solution. They tamed down the upper mids, retained the openness in the midrange, relaxed the treble, and added that subbass fun.


What you get is a very uniquely tuned neutral set that will please most people. It may not have the bass from that of a bassy IEM, but it has the subbass quality that is hard to match. The upper mids might not be as engaging as IEMS with a boosted presence region, but you can blast the volume up when your emotions call for it. You get immersed in your favorite songs and enjoy the openess of sound the DX1 can offer.....this is neutral bliss



==========================

WHERE TO BUY: non affiliate links

https://letshuoer.net/products/lets...k3CJdVTBR5yCIS1wA9UYr5CK6q5d2rEsP4Uwn8AGy29JJ



MY LIBRARY:

I grew up listening to 90’s music. Alternative, punk-rock, screamo, rap, Philippine OPM, Anime songs, JPOP, KPOP, metal, reggae and a lot more.

The artists I regularly listen to are:


Rock-Alternative-Metal

Incubus, 311, BMTH, Matchbox 20, The Goo Goo Dolls, Paramore, Polyphia, The Calling,, Babymetal, Metallica, Slipknot, Bon Jovi, Coheed and Cambria, Deftones, Red Hot, Green day,


OPM(Original Pinoy Music):

E-heads, Slapshock, Parokya, Urbanddub, Up Dharma Down, Bamboo, IV of spade, Kamikazee, Rivermaya


POP:

IU, Yoasobi, Yorushika, Milet, Reona, Maroon 5, Coldplay, Bruno Mars, Ed Sheeran, Taylor, Dua Lipa, Oliva Rodrigo, Billie Eilish


OTHERS:

Carpenters, Micheal Learns to Rock, Celine Dion, Bob Marley, Sitti, Daft Punk, Pink Floyed, Earth wind and fire, Amber rubarth, Sia, Yosi Horikawa


I listen to more, but I can’t just list them all here.haha. Just giving you an idea on what I listen.


Thanks for reaching here. Hope you enjoyed reading.

Introduction
During unboxing, I reacted to the unique and a bit odd design — the glossy stainless-steel body weighing about 11.5 grams. A spherical shape and a face-plate with a hex pattern. It reminds me of a chrome-plated blind nut or a bullet. And I asked myself, why make it like this?

After listening, the layman in me believes the solid steel construction is there to control resonances and play an important role in the DX1’s unusually fine spatial qualities.
The powerful and fast single dynamic driver needs a robust housing, without energy lost to unwanted vibrations. Instead all the energy is pushed out giving the disciplined voice of the DX1 a rich, transparent, full body sound, as solid as the DX1 itself.




Who am I?
I’m an amateur audio enthusiast who has been using IEMs for just over two years. I listen to jazz-fusion, jazz-rock, jazz-funk, acid jazz, smooth jazz, contemporary jazz, and occasionally some pop, rock, and classical music.
As a proud member of the Audio Geek Europe Tour, I’ve had the privilege of listening to the DX1 for a couple of weeks.
My impressions are entirely based on my own subjective observations and experiences, combined with a positive approach.

Star Ratings:
It seems like everyone has their own interpretation of the 5-star rating system. My take is from a consumer perspective:

• 3 stars – I don’t want this one
  
  
• 3.5 stars – I don’t need this one
  
  
• 4 stars – It would be nice to have this one
  
  
• 4.5 stars – It would be really nice to have this one
  
  
• 5 stars – I must have this one
  

Imaging
To me DX1 has fantastic spatial qualities. DX1 gives me an immersive illusion that the music comes from outside, not from inside my ears or head. It sounds more like a headphone than an IEM.

Stereo, instrument separations and imaging are very well made. It's as if the music is not just delivered to my front door by a courier. With a little help from my psycho acoustic mind, DX1 can bring me to any stage of the performance. I’m there, surrounded by music.

Tonal balance
Energy is well distributed all over the frequencies giving a rather neutral sound. Nothing smearing, masking, missing or taking over. Very clean but not the least lean. Body is a key word for the DX1.

With good recordings and suitable equipment DX1 can bring you:

• Sub-bass with plenty of depth and rumble
  
  
• Mid-bass that is tight and precise
  
  
• Upper and lower mids with detailed acoustic texture and presence
  
  
• Clear and crisp treble with snap and sparkle
  
  
• Upper treble with air, extension, and micro-details

This is an authentic and very enjoyable tuning for me.




Tonality
The DX1 gives my music a high resolution timbre, bringing out the finest details and nuances with depth and warmth. It has a rich and generous voice.

Bass and double bass have a naturally warm tone without being muddy.
Well-balanced overtones in the mids and treble bring me presence and natural harmonics in vocals, piano, guitar, xylophone, and brass instruments.
Cymbals have that perfect “copper-alloy-zing” without any harshness or ringing.

Transient response and dynamics
I find the driver to be fast, reproducing rhythm and percussion with high precision.
The mid-bass gives a controlled punch to floor toms and kick drums.
Bass, piano, and guitar all have a precise attack and weight.

The wide dynamic range of good recordings comes through fully.

These properties make the music lively and engaging.

Ergonomics
The shell is small-sized but a bit chunky and the nozzle is about 6 mm wide. In my fairly small ears, DX1 fits well, with its weight safely supported by the inner windings of my outer ear. It gives fairly good noise cancelling.

Not the most comfortable IEM I’ve tried. I feel the weight of DX1 in my ear, but I experience no discomfort during long listening sessions. There is always a give and take, this design is to give me great sound, not to please all my anatomic properties.




Compared to Dita Mecha
The Dita Mecha is also a highly competent IEM with one dynamic driver, that I recently reviewed. To me the DX1 has a more authentic tuning and even better stage and imaging. Also the transient response is more controlled. The timbre of Mecha is somewhat smoother, warmer and a bit upper mid focused. Some days I would prefer that, and some days the more neutral, generous, detailed voice of DX1.
The Mecha is medium size, made of aluminum alloy and lighter than DX1, and has a more comfortable fit in my ears.

Summary
There are three things that stand out with the DX1 and makes me really want it:

1. The sound-stage and imaging — this IEM brings two-channel stereo to a 3D illusion.
   
   
2. The timbre — delivers a solid blend of naturalness and energy.
   
   
3. The precision of the attack, all the way from bass to treble without ever getting too hard.
   

Or put in one sentence: This is a technically competent IEM that offers a very pleasant and engaging musical experience.


Some of the albums I’ve listened to with DX1:
Steps Ahead, Vibe
Juraj Griglak, From The Bottom
Alan Pasqua, My New Old Friend
Alan Pasqua, The Antisocial Club
Roman Bondarenka, Shades of Style
Hawk on Flight, Fly Free Faster
Billy Cobham, Drumvoices 1-2-3-4
Avishai Cohen, multiple recordings
Jimmy Haslip, Nightfall
Arooj Aftab, Night Reign
Joe Sample Lallah Hathaway, For all we know
Melanie De Biasto, The Flow
Norah Jones, Midnight Jones
Beady Belle, On My Own
Tom Kennedy, New start
Steve Hunt Tim Miller, Changes
Elektrik Market, Attraction
Dvorak, The New World
Brahms, Requiem
Melody Gardot, Worrisome heart

LETSHUOER DX1 - Chef's kiss

I got a free review sample of DX1, and I can say whatever I want without any guidelines from LETSHUOER.

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 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.





So what is LETSHUOER DX1

LETSHUOER is a brand from China that specializes in IEMs, they have been making IEMs since 2016. They have had many popular releases over the years from the planar S12 to the incredible flagship Cadenza 12.

This time they have released a single dynamic driver IEM, called the LETSHUOER DX1. This has a 11mm aluminium-magnesium alloy nanoparticle coated dynamic driver, so a metal driver that's a little larger than the average DD with also a Diamond pattern topology diaphragm.

They also mention that the driver and IEM has been in research and development for two years, to achieve the preferred tuning with the finest details.



Specifications:

Model: LETSHUOER DX1 wired IEM
Sensitivity: 108dB
Frequency response: 20Hz ~ 40kHz
Impedance: 30Ω
Shell material: Electroplated stainless-steel w/ high-gloss finish
Cable: 256-core silver-plated monocrystalline copper
Drivers: 11mm aluminum-magnesium alloy nanoparticle coated dynamic driver



The included accessories are great, everything you really need to start listening.
You get 3 different types of silicon tips, and one of them should fit most folks.

A 256-Core silver-plated monocrystalline copper cable in dual-pin 0.78mm, the DX1 can be ordered with either 3.5mm or 4.4mm.

The storage puck is the same that the Mystic 8 has, a solid metal puck with a silicon lid and protective silicon coating on the inside.



The DX1 is made of Electroplated stainless-steel shell, and has a unique faceplate reminding me of a brass nut holding a plate. The front has a brushed look on the nut, and is perfect even (my photo shows it wrong).



The shells have a smartly designed wing to hold the cable, where you also can find the ventilation of the driver. The shell has a little angle on the nozzle, this helps comfort and fit be better.



The nozzle has a nozzle lip that's 6.3mm, with a 6mm diameter where the tip rests. The length is fairly average if not a little longer than the usual IEM in this design, the nozzle also has a mesh type filter that looks and works better than the usual type.



Sound impression

The LETSHUOER DX1 has a warm neutral tuning, just enough warmth to make music more engaging than completely flat sounding IEMs.

Going to use the ranges here in review:


Details and soundstage

Detail in IEMs is down mostly to quality driver and how it amplitudes the frequencies, when the drivers is faster it increases the resolution you hear.

The driver in DX1 is very capable, the combination of high driver quality and a balanced but well extended tuning makes it excellent for clarity. It is possibly the most resolving IEM you can get around the price, and it manages it without sounding overly bright. The transients are very clean, so music is clear and open without being too smooth. It still has some smoothness to the sound, but this is more due to the tuning.

Soundstage is very personal, the DX1 is a champion of soundstage. It has a very holographic stage that reaches around my head with a nice projection in height and depth, similarly to the clarity it's very impressive what DX1 is able to do with the stage.

Timbre

So when I talk about timbre I think about how accurate it sounds, for something to sound accurate it needs a balanced tuning. And not every IEM suits every type of instrument playback, for example some are better for metal strings and others more for nylon strings.
The DX1 sits in-between in this description making it shine with almost any type of music/instrument playback, while not the absolute best i've heard for cello or saxophone it gets so close with both.

Bass is very impressive, you get a tactile and highly defined bass response. So fast bass kicks are never slow sounding, with a good impact that doesn't linger too long. The deepest notes into the sub bass reach all the way, it's no drop off here. For folks who are used to alot of midbass, the DX1 might sound a little light at first. But this is a preference thing, and increasing it more takes away the clarity in the midrange.
The DX1 is also very sensitive to tip seal, the mid bass is in good harmony with the deep sub bass if you get the correct seal.

The midrange is also super impressive, and I could argue is the star of the show. It follows a familiar sound I am used to from Cadenza 12 and Mystic 8, LETSHUOER has taken the two and blended them into DX1. A balanced and open midrange that stays away from the intense upper mids that is often the standard these days, the tuning is perfect for the bass quantity as they work in harmony.

It is equally impressive for darker male vocals and brighter female voices, but it is also not in super focus for female vocals as Mystic 8. It has a little softer presentation in the upper mids/low treble similar to Cadenza 12. But then go to the low mids and it's more similar to the Mystic 8, with a more open and clean midrange. Why I mention it has taken the two and blended them, there is a difference from both and that is that the sound is less smooth than both. Since both Mystic 8 and Cadenza 12 have more rounded transients, the DD of DX1 is definitely more ON/OFF on every note.

The highs are also well extended and airy, it is actually one of the most airy single DDs I have heard. But also without being overly sharp and intense like some sets with BA is, it doesn't reach the lingering air of Mystic 8 or Cadenza 12 but it is still super impressive considering the cost. The low treble has a dip, this is part of the reason why the sound is not overly sharp and get some smoothness to the sound.



Synergies with accessories and sources

I have been using DX1 for many weeks, and I clearly prefer it with more analog or warm sources. So the Shanling M8T is pure magic with DX1, specially in the tube mode. Someone who might want ultimate clarity will probably instead like a neutral DAP/dongle like DX340, but I reach for musicality instead.

The DX1 also scales with powerful gear, so using a desktop class A amp makes the bass super tactile and powerful. With an even more open and spacious stage, I also don't expect most folks will use desktop gear for IEMs.

The stock cable is a little thin, but it sounds great. Only change it out if you really want to, I admit I have done that. And it is now permanently paired together with a beautiful Plussound cable.

I advise that you test a lot of tips, DX1 is very sensitive to tip rolling. It can also be needed to get a good seal, for me that special one is Penon Lacquer Black as it is secure and delivers a clear and full sound.



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 capable, together with volume matching to take away loudness variance.


The spider chart is slightly exaggerated on some points to show differences, this is a subjective evaluation and reflects what I prefer.





FIIO FD15

Technical level the FD15 is below, it also has a good driver for timbre and natural midrange but it's not as delicate as DX1 in showing all details.
Part of this is since the DX1 has super clean transients while FD15 has some roundness to it, so I could see one liking the other more than the other but also makes both great to own.

Soundstage on DX1 is much more spacious and 3D, FD15 being more average and lacking that extra imaging and separation of DX1.

Bass is actually about equally in quantity for me, even though measurements may say FD15 having more midbass. The difference is more that DX1 is more tactile and focused, FD15 is instead a little softer and lingers longer.

Midrange is the focus of both sets, with FD15 having a little more intensity. DX1 is more balanced instead, which also means that FD15 is more prone to get sharp. The upper midrange makes me play the music at lower volume on FD15, and might be the main reason why I perceive both as having the same low end warmth.

Highs is well extended and clear on both, I could argue the DX1 having a little extra of the upper harmonics and shimmer. But both do a very good job for single DD.

Simgot EA500LM

The EA500LM is almost as technical as EA1000, but has a slightly smoother and warmer sound. Mentioning this as the EA1000 would have been more accurate to compare FX1 with, the technical level in resolution and soundstage is very similar to FD15 with EA500LM. DX1 is in a league above EA500LM, and that would have probably been true for EA1000 also.

The EA500LM is much more colored instead of neutral FX1, the bass is thicker and makes the sound less open. Also similarly to FD15 the bass is softer and more loose than DX1, so the speed is slower due to decay with EA500LM. But since the bass of DX1 is more tactile and focused it can often sound more punchy than EA500LM, even if the overall bass quantity is less.

Midrange is harman style on EA500LM, so this means it has much more upper midrange making sound more intense. And it's needed to balance the bass, so it's not sounding too thick. Downside of this is the scooped out lower mids make it sound less open and balanced, making it better for bright midrange instruments like brass or female vocalists. While DX1 is almost perfectly balanced, this is also down to a preference in eargain/pina as we have different sensitivity to this area.

The upper air of EA500LM is a little soft, and is a by-product of the upper mids being forward and shadowing the air. So comparing the two you hear more air and overtones on DX1, making it shimmer more naturally.




Music

Click here for Audio with Leo playlist

When comparing IEMs I have used the tracks listed here and more, I will also provide a few albums I have enjoyed during the review time.


https://tidal.com/browse/album/426705138?u

Modern jazz, this new record from Hiromi has tons of stuff going on. Jazz in general favour more neutral sets like DX1, the speed of DX1 let the sound be open and never busy.


https://tidal.com/browse/album/58160541?u

Been some time since I listened to Katatonia, they have a nice blend of prog rock and black metal in their sound. It is well recorded and often makes good use of good audio gear, I often reach for sets with more bass for this but DX1 sounds surprisingly full and fun.


https://tidal.com/browse/album/429154730?u

The first published song from @RTodd daughter Ciara Radwell, beautiful voice from a girl with real talent. Had goosebumps listening to it on DX1, especially since it captures so much emotion and nuance.


https://tidal.com/browse/album/417261502?u

I recommended this one in another review also, beautiful and sweet jazz. The double bass and sax is in focus, and sound divine on DX1.



https://tidal.com/browse/album/63905542?u

I have been a fan of Steven Wilson for years, this compilation/record is a nice entry into his music. His music is always well recorded, and music flows on great sets like DX1.


https://tidal.com/browse/album/68480878?u

Not a review from me without an electronic record or two being mentioned, I often reach for more bassy IEMs for it. But wow, the DX1 is able to provide some speedy and hard hitting bass lines. There is more to the sound than measurements, something I really have learnt with DX1.
This record here is special to me, so varied and fun.


https://tidal.com/browse/album/425001601?u

I love natural and technical sets with ambient electronica, I stumbled upon this release on Bandcamp while writing the review. Ambient music like this deserves extension deep into the sub bass, something DX1 does perfectly. While the mids and treble is clean and balanced to make it sound spacious and open.


https://tidal.com/browse/album/163718318?u

I am not one who listens to a lot of J-POP, but I do at times and like to use it for testing IEMs.
I often find it tiresome on almost every set, specially the so called IEMs with too much upper mids. DX1 is safe in this regard, but not where it's dull. The midrange is still in focus being super clean and clear, without shouting or sibilance.



https://tidal.com/browse/album/388437294?u

The fourth album by the brilliant female artist, jazz with Arabian influence is something very special. I am not one to like eastern music, but this just hit perfect. The realistic timbre of and spacious stage of DX1 is marvellous, and it's an experience listening.



Conclusion

Some of my favorite IEMs have been made by LETSHUOER, and the new LETSHUOER DX1 follows in that trend. It follows a tuning close to their house sound with natural timbre, but this time with a dynamic driver IEM.

The tuning is similar to Mystic 8 and Cadenza 12, the bass is tighter and more tactile than Cadenza 12 while bass is more elevated than with Mystic 8. Midrange is like a blend of both, with great balance and clarity. The highs are well extended and airy, not often true for most DD IEMs but also not at the same level as its flagship siblings. Even the shell is made in metal like the other two, but this time stainless steel instead of Titanium.

The new drivers are of high quality, and have clean transient response. This together with the balanced tuning make DX1 above average technical and open sounding, soundstage is always personal but DX1 is holographic and spacious.

Like every set there are a few cons to consider, the universal style shell is not as comfortable and easy to use like their ciem-like models. The shell is also prone to getting scratches and smudges, but this is expected for metal IEMs. The set is also tuned close to neutral with some warmth, many love this tuning style but not everyone. I can see some needing more bass, while others needing more upper mids.

I have given it 4 stars, with a personal score of 75. This is budget audio at its finest, and makes you question the price on many expensive sets.

Congrats LETSHUOER, you have made an awesome IEM with DX1.

Disclaimer:
Firstly I want to thank Letshuoer for sending the DX1 out for review,
Letshuoer has asked for an honest review.
All thoughs and opinions, on impressions of the subjective sound are of my own experience with the DX1.

Gear, Tips, Used During My Review:
Xduoo XP2 BAL
Nobsound Little Bear B4-X
Jcally JM20 DAC Dongle
Celest CD-20 DAC Dongle
Letshuoer DT03 DAC Dongle
Tips,
Radius Deep Mount Silicone Tips
Spinfit CP145
Eletech Baroque

Subjective Impressions:
The DX1 has good resolution, and tonality, and presents both vocals and instruments, with good texture and clarity.
Vocals have a clear and natural texture, with a bit of body, not overly thick or thin.
Instrument seperation is good.
Imaging and sound stage is also quite good.

Bass:
The bass is tight, well textured, well controlled and feels speedy and natural, with some good extension and layering on bass notes.
The bass adds a decent amount of depth and presence, and stays well controlled.
Kick drums have a good snap and are well textured, with good texture in the presentation of the bass notes.

Mids:
Mids are natural, the texture of the mids is good, they're neither too thick or too thin, there's a natural feel to the mids, with good resolution and clarity, vocals sound natural, as do instruments, and the presentation of the mids is very natural.

Treble:
Treble is also clear and natural, has a hint of sparkle, good extension I the upper treble and good balance with the mids, not being too forward or too rolled off.
There is a hint of air, and sparkle, without any sibilance that I could detect, the treble isn't splashy either.
It's well controlled, just like the bass and mids.

Sound Stage:
Sound stage is good, it may not be the widest or deepest there is out there, but it does have good width and depth, while feeling quite light and airy at times.
Height is good, and the layering is also pretty decent.
Instruments and vocals are well defined and seperated in the sound stage.

My Thoughs On The DX1:
While I wouldn't say they are the absolute last word in dynamic drivers, I do think they are very capable, and would keep up with most single DD's in their price range, and some above their price range.
I probably would place them in the top 5 or 6 single DD I've heard so far this past few years, along with such as,
Sennheiser IE900, Simgot EA1000, Simgot EA500, Oriveti OD200, Juzear Clear, Final A4000, Final A8000, Dunu Falcon Ultra, Moritz Audio Dragon, to name a few.
Now I don't know exactly where I'd place them in terms of where they stand, but would definitely be within the top 5 or 6, somewhere in that group of IEM's.

Thank you again to Letshuoer for their kind offer to send the DX1 out for review.