Leteciel Shark

- Introduction -
Hello friends, today in this review we are going to take a look at three driver headphones from Leteciel, priced at 109$.
And these headphones come in a rather small-sized box with a very nice design where on the front part there are as many as three waifu, in the upper left corner there is a company logo, and also here is the name of this new model SHARK, sounds cool agree, and at the back as always indicated technical specifications of the headphones.

- Technical specifications -
Drivers: 1 custom 10mm high performance Beryllium-plated dynamic driver + 2 custom coaxial dynamic driver
Sensivity: 104dB
Impedance: 16Ω
Frequency Range: 20Hz-20kHz
Plug type: 3.5mm jack
- Let's take a look at what's included -
1.High quality audio cable with 2 pin connectors and 3.5 mm jack.


2.Branded case.

3.User manual.

4.Waifu pin.

5.Eartips.

6.Acrylic stand.

7.IEM.
The headphones are quite small, made entirely of black resin, and the front panel here has a very beautiful design with a lot of shimmering crystals that looks very cool, and the Leteciel logo fits perfectly here.

And here there is a standard 2 pin connector for cable connection, and next to it there is a single hole for compensation which fulfills its function well, so when using headphones there is absolutely no vacuum effect and driver flex.

The sound guide in these headphones is not too long, and not very short, as for me it is optimal, made of metal, and has a diameter of 6 mm, and received a protective mesh and a clearly marked edge for better fixation of the ear tips.

And the fit of these headphones is just perfect - no discomfort, even with prolonged use.They are very deep and tightly fixed in the ear, providing excellent sound isolation, while nothing presses or interferes. The anatomical shape has been thought out literally down to the last detail, so there is no desire to take them off as soon as possible. Everything is done so competently that any discomfort is out of the question.

- Tuning and Conception -
And now let's talk about how the Leteciel Shark headphones sound like this is how their frequency response graph looks, these headphones have a 7dB bass boost with a very smooth transition to the lower midrange, and the emphasis in the upper midrange almost perfectly matches my target range, which I am very happy about, so for me personally these headphones do not sound too energetic and tiresome in this range, and the high frequencies are very good here, they are quite long and only fade smoothly after 15 kHz, which is a very good result, and now let's analyze the sound of these headphones in more detail and then compare them with Leteciel Mira and Leteciel Magiris.

- Low Frequencies -
These headphones offer us very confident bass frequencies that are pleasantly perceptible, but do not overwhelm the overall perception. Bass is tight, textured, and with good transparency. It doesn't try to be overly dominant, but remains pronounced enough to add the necessary sense of power and depth and create the right and solid foundation in this range.
And the first thing that is immediately noticeable when listening to the bass is its excellent density. It is not loose, not cotton, but exactly collected and weighty, with a clear form of impact. At the same time I like that it does not have the purpose of excessively taking all the attention on itself, but on the contrary, it just competently creates the necessary volume and warmth, and please note that it does it very discreetly and intelligently.
Sub-bass has a good enough presence, and it is really felt especially in electronic genres and cinematic tracks and even jazz, but it does not dominate. Compared to really bass-heavy headphones where the sub will literally shake the air much more clearly, in the Shark it will be a bit more modest: not as deep and lush, but very controlled and neatly integrated into the mix. It adds a good volume to the sound, but it doesn't buzz and doesn't go into some kind of smearing.
And as far as I'm concerned, the midbass is literally the main strength of these headphones. It's textured, crisp, supple and works well with rhythmic elements. The drums sound very punchy, with a meaty attack and a clear response, and the bass guitar comes across as very tight and with an expressive body. That is, everything sounds mature, there is no bloat, no dryness, but only tight, confident and well articulated clean bass.
And it's important to note that Shark don't try to surprise you with a super huge amount of low frequencies, as it is done by frankly bass-headed models. Everything here is done tastefully, bass is emphasized, yes, but it's not harsh and doesn't invade the midrange at all.
It does not blur and does not climb on vocals, but on the contrary, perfectly supports it, giving the sound body and weight.
In addition, I was surprised by the way Leteciel Shark are able to subtly convey microdynamics in the lower range: in tracks with live recording you can hear how differently the bass behaves depending on the strength of the impact or onslaught of the performer. This indicates good resolution and control, which you will agree not all headphones can give you, but SHARK can and proudly demonstrate it!
And to summarize, the bass in Leteciel Shark is a balanced combination of mass, control and texture. The sub-bass here is a bit more restrained than in Leteciel Magiris flagship, but I think it is completely enough to give good volume and the necessary depth in the sound. The bass here not only gives weight, but also works carefully and precisely on musicality, making the sound more bodied, natural and driving - without overdoing it and without compromise.
- Mid Frequencies -
The midrange of Leteciel Shark is, without exaggeration, one of the strongest and most memorable parts of their sound character. It is built with a clear aim for maximum naturalness, comfort and musicality, but at the same time it doesn't slip into loose or muffled at all. Everything sounds very balanced, restrained and neat, with that insanely pleasant warmth that makes the delivery lively and soulful, but absolutely not intrusive.
The midrange is very warm and slightly softened, but without coloration - there is no so to say artificial “lamplightiness” or excessive smoothing. This is exactly the type of sound that does not tire and does not require getting used to, especially when listening for a long time. Each instrument clearly gets its own space, but does not protrude forward, everything is presented in one piece, literally a single and understandable musical flow.
Special attention should be paid to vocals - both male and female voices in these headphones sound tight, with good body and smoothness of attack, without a hint of subtlety, or any sibilants. Female voices are presented as very airy but warm, male voices are very rich but not harsh, they have a good controlled smoothness.
And note that the whole pitch of this range is built on a pleasant smoothness and neutrality, and that is exactly its strength, there is no over-added intrusiveness, and no pressure on your ear, which is definitely not unpleasant!
And instrumental parts are transmitted naturally, and volumetrically acoustic guitar, piano, strings all sound very pure, and bodily, without any strange timbres or over-emphasized transients, and without blurring details.
As small strokes and small nuances in the attack are transmitted with a slight subtle rounding, which gives the sound a special softened character, but not to the detriment of intelligibility.
And what is particularly valuable in these headphones is the upper midrange (2-4kHz), this is the frequency range where many headphones (in my experience) with more pronounced Harman tuning can sound harsh and aggressive, and fatigue your hearing especially if you like to listen to the headphones at high volume, and this is often more noticeable on kick drums, high female voices and some jazz instruments, but the Shark do without it, I like that their upper midrange is controlled very competently here, without dragging your attention, without straining it, and without provoking that very fatigue.
This part of the range serves more as a very precise link than as a bright amplified accent point.
And to summarize, the midrange in Leteciel Shark is the epitome of comfortable musical neutrality, where warm, smooth presentation is combined with excellent readability and natural texture. They don't try to stand out by being harsh or punchy, but it's in their understated and balanced manner that they present everything in a way that makes you want to listen to them for hours. This is the case when the middle sounds just right, calm, convincing and truly musical.
- High Frequencies -
The high-frequency range in Leteciel Shark is, first of all, the embodiment of a very refined taste and mature approach to tuning. There is no harshness, no artificial shine, no intrusive enhanced brightness here. Instead, what we get here is a gorgeous smoothness, precision, musicality and comfort that is particularly pleasing in longer listening sessions.
Treble attack is slightly soft but not smeared, percussion, cymbals, ringing details are all delivered with just the right amount of emphasis but without added aggression or sibilants. It's especially nice how the Shark work out transients in the upper mids and lower treble, which is where most headphones start to over-emphasize, especially on female vocals or bright instruments like flute or violin. That's not the case here.Control is at a very good level, there's not even a hint of tedious brightness or ringing harshness.
Of course, the treble itself is a bit darkened here, but in the right sense of the word. They are not “squeezed” or simplified, but just a bit muted in their so-called peak energy, so as not to overpower attention and not to cause auditory strain. And this creates a feeling of mature, mature sound, where treble frequencies are not too much protruding, but very organically fit into the overall sound picture, preserving the right sense of airiness and depth.
And I think it is worth noting the accuracy of localization in this range, because even despite the general smoothness, Shark perfectly convey spatial images, cymbal attack, small clicks, hits on the working drum or even barely audible synthetic noises in electronic music are felt structurally and without mush. And that's a testament to sufficient resolution, transparency, and excellent top-end detail.
And as a result, the treble in Leteciel Shark is a perfect balance between comfort, precision and musical expressiveness. They are not bright and not too accentuated, but they have literally everything, confident detail, smoothness, accurate attack and airiness. This approach makes these headphones sound long-lasting and refined without sacrificing the important nuances of a recording.
- Sound Stage -
And the soundstage in Leteciel Shark is a spacious, well-organized and balanced acoustic picture. These headphones do not create the feeling of a very confined space, but instead offer a pleasant sense of air between all the instruments and sounds, allowing everything that happens in the music to clearly find and take its place.Leteciel Shark stage width is one of their strong points. There is no sense of shrinking sound here, but rather space gently opens up to the side.
Listening to these headphones, you can feel how music literally fills the space, especially when listening to complex and multi-layered tracks.
In terms of depth, Leteciel Shark offer a well-crafted sense of distance and perspective. Sound doesn't just “evenly” spill across the space, it's literally layered, giving you the sense that sound events are happening at different distances. Instruments closer to you sound more detailed, while those farther away have a slight spatial reverb effect, adding a sense of openness.
But a separate pleasure is the localization and separation of images. Leteciel Shark don't just place instruments in space, they do it precisely and accurately, without overlaps and losses. Vocals, guitars, synthesizers, reverbs - everything is separated from each other by a thin but distinct boundary, which is especially noticeable when listening to multi-layered or rich compositions.
And as a result, the soundstage in Leteciel Shark is a successful compromise between accuracy and musicality. It does not pretend to be an arena effect, but gives a sense of spaciousness, depth and liveliness, where every instrument knows its place and the listener gets a full sense of presence. It's a mature and balanced delivery that perfectly supports the character of the whole Shark sound: neat, confident, musical and natural.
- Leteciel Shark vs Leteciel Mira vs Leteciel Magiris -

Oh guys...comparing all three sets wasn't easy, I don't often do such huge comparisons, but I realized that I should definitely do it to make it much easier for you to choose the right headphones for you, I really spent a lot of time on it, but I can safely tell you that I got a clear picture of all three sets, and I'm ready to share it with you, as clear and to the point as possible, let's go!

- Low Frequencies -
Leteciel Mira: is a moderate bass not too deep or punchy. Suitable for those who are not looking for a powerful punch, but prefer lightness and emphasis on texture and airiness. Sub-bass is perceptible, but it is more marked than fully developed. The mid-bass is fast, without roundness - it gives rhythm, but doesn't over-pressurize.
Good for light genres, vocals, acoustic.
Leteciel Shark: here the bass is noticeably denser. It is not over-amplified, but has a more obvious mass, depth and roundness. The sub-bass penetrates the mix softly, the mid-bass gives a nice body and rhythmic support. The bass is versatile - there's enough weight and control.
Gives a solid feel without being overdriven. Maximum warm, musical foundation.
Leteciel Magiris: are the most bass-heavy in the trio. The sub-bass goes deep, and literally feels physical. The mid-bass is powerful, with high density, yet not smeared.
The pitch is massive, the bass foundation is the densest and most saturated.
Conclusion: Mira - lightness and neutrality, Shark - comfort and balance, Magiris - depth and mass.
- Mid Frequencies -
Leteciel Mira: The middle here is light, a bit airy, with a slight accent on the top end. The sound is transparent, detailed, with good readability of vocals and instruments. The pitch is at its most energetic, but not overly overpowering.
The character is a bit light and cheeky, with a bias towards analyticism and clarity.
Leteciel Shark: As far as I'm concerned one of the most pleasant and versatile mids. It is warm, smooth, neutral and moderately restrained. There are no surges in the upper mids, everything sounds soft, pleasant and balanced.
This is exactly the kind of sound that doesn't get tiring - it's delicate, calm, but lively.
Leteciel Magiris: serves the middle tighter and more fleshy. The lower middle is particularly prominent, which gives the sound mass and richness. In the upper mids it is a bit more energetic than in the Shark, but it doesn't go into excessive aggression, so the delivery is still quite smooth.
Gives more “meat” and body, good for male vocals and dense tracks.
Conclusion: Mira - emotions and clarity, Shark - warmth and comfort, Magiris - body and pressure.
- High Frequencies -
Leteciel Mira: the treble is more open, bright, but without excessive aggression. Extension is not bad, character is light. In some tracks a little light accent may appear, but the overall presentation is balanced.
For those who like more air and clarity.
Leteciel Shark: here the treble is slightly darkened, but very precise, soft and super comfortable. No harshness, no sibilants - everything sounds smooth, smooth and pleasant. Details are audible but don't bulge out.
Very delicate, versatile presentation.
Leteciel Magiris: here the treble is also darkened, but perhaps a little less refined than on the Shark. They are rather rounded, merged into the overall sound flow. A little more air and transparency, which will be appreciated by those who like to analyze music well.
Emphasized comfortable pitch, but with an emphasis on the overall body of the sound.
Conclusion: Mira - brightness and air, Shark - precision and smoothness, Magiris - softness and transparency with analytics.
- Sound Stage -
Leteciel Mira - the most airy and neat scene, with good width and clear panorama, but without deep three-dimensionality. Suitable for those who appreciate lightness and monitor presentation.
Leteciel Shark - is the golden mean the stage is voluminous, with excellent depth and enveloping effect. A versatile balance between intelligibility and atmospherics.
Leteciel Magiris - the largest and most corporeal scene. The space feels full - both in width and depth, creating the most intense and spectacular immersion.
My conclusion on this headphones!
Leteciel Shark is a headphone that boasts an exceptional balance of all frequencies. The bass provides a dense and textured foundation while not overpowering the sound. The midrange is smooth and neutral, without aggression, with excellent control of all details. The high frequencies, despite being slightly darkened, leave a great impression thanks to detail and maximum comfort.
These headphones are the golden mean between Leteciel Mira and Leteciel Magiris models. They are ideal for people who appreciate harmony, precision and musicality in all ranges. Without bright coloration or over-emphasizing any of the frequencies, Leteciel Shark offer a comfortable and engaging listening experience that is pleasant in any genre.
Buy Leteciel Shark on Penon Official Website: https://penonaudio.com/Leteciel-Shark.html
Buy Leteciel Magiris on Penon Official Website: https://penonaudio.com/Leteciel-Magiris.html
Buy Leteciel Mira on Penon Official Website: https://penonaudio.com/Leteciel-MIRA.html

Being a reviewer I try to give my subjective opinions on iems, in the hobby at the moment 95% of iems released at the moment are good so the differences between great iems and good iems is all about the nuances. All reviews are based on a single point in time for the reviewer next week an iem can come along and make a mockery of your previous judgement.
The Leteciel Shark at $109.90 is a triple Dynamic Driver in a surprisingly small shell with a beautiful sparkling blue faceplates.



I could do without the waifu box, plastic figures and Badge which for me would have made me think the iem inside was not a serious iem when in infact its a serious audiophile gem.



The Shark is challenging to be the new king of the castle when it comes to budget triple dynamic drivers iems and what’s most pleasing its neither Harmon or V shaped in its sound signature but rather a wonderfully balanced W. This is a case of hitting the perfect balance in tunning in a very comfortable shell.



In the current market there seems to be a new best iem released every week. The Shark enters the fray and surpasses my expectations with ease. Fantastic build quality, very nice cable available in 3.5mm, quality denim effect case and most important, brilliantly tuned quality drivers.




The Title of this review is “Triple Pleasure” why you may ask, well when I heard how this iem presented my entire music catalogue I was able to just kick back and enjoy the music the Shark just took everything in its stride confidently. The sound presented is warm, robust in body but not veiled the treble is extended but not peaky. If I was to choose an iem to be a gift to anyone outside the hobby this would be it.

I'd just like to say upfront I believe we are all biased when giving our subjective thoughts about IEMs be it a particular type of signature that works with our music library or how an IEM looks and feels in our ears. On the subject of ears everyone's ear anatomy is different and this effects fit and seal which in turn effects the perception of bass response so I recommend finding the right ear tips that suit your ears to get the best of any IEM.

My review star ratings are linked to the price range of the iem eg a 5 star review of a $100 iem is not equal to one of a $500 iem.

I’m and audio enthusiast with a collection of over 200 iems, 30 different sources with a music collection that numbers over 100,000 tracks and 15 flathead buds I share my impressions as a way to share my enthusiasm for the hobby I approach from the premise of music first technology 2nd, what does this mean? For me the technicalities are not of prime importance but does the music move with this particular iem.

I’m a connoisseur of many different sound signatures. The only prerequisite is musicality I’m not a fan of analytical cold playback. My scale of success when it comes to evaluating iems is; do I get goosebumps when they playback my favourite tunes. There are many good iems but do they give me goosebumps? Unfortunately I have a draw full of just good iems.

I want the iem that I reach for without thinking because I instinctively know it will bring the thrill I’m seeking from my music. The Shark’s bass, mids and sprinkling of treble coming from the three Dynamic Drivers gave me goosebumps with my most loved genre of classic rock which I believe to be the last bastion of instrumental authenticity just bands playing together in the studio with a sound engineer capturing the magic on tape! The Shark’s analogue signature matches just as perfectly with these types of recordings as with any others in my varied collection. I must mention I don’t listen to classical music so cant say how this is suited.



I have always favoured Dynamic Drivers for the tactility and organic natural playback they produce. The Shark’s Dynamic Drivers give good sub bass and great mid bass combining to give a really exciting bottom end that drives the music along. The mid bass doesn’t bleed much into the mids, just a hint of thickness to male vocals, they are silky smooth and are relatively neutral, with a nice sense of air and layering. There is detail and the timbre is just wonderfully natural with both male and female voices having a touch of added note weight presenting slightly forward. The treble is not prominent but it is there. The leading edge of cymbals are crisp and sound very natural. The upper range of the mids and lower treble do sound very effective especially when cutting through the warmth of the lower mids with singers in the higher registers. The whole sound being rendered with a balanced warmth that I was able to enjoy for 5 or 6 hours straight without any fatigue, these are supremely comfortable iems.

Now I know there are those who don’t believe in burn in of iems, all I’m going to say is, I burn in all my iems to be honest I noticed the bass opening up and the treble smoothed out at around 50 hours.

Here's a graph for those who like such things



Disclaimer
Penon was kind enough me a sample of the Leteciel Shark. I am not affiliated with Penon and of course was not asked for any copy checking before publishing, they are seeing this the same time as you. All pictures taken be me or sourced from the Penon website . ALL opinions shared in this review are my subjective thoughts.



Make sure to research any iem before you buy!

The Leteciel Shark are available for purchase from the Penon website see the non affiliated link below

https://penonaudio.com/Leteciel-Shark.html

This is what Leteciel have to say about the Shark



Leteciel Shark 3 Dynamic Driver 3DD Triple Dynamic Drivers 2Pin 0.78mm Audiophile In-ear Earphone IEM

Description

The design theme comes from the band
SHARK, composed of LETECIEL, CoCo and ViVi, is active on the stage of youth, interpreting their stories. These relaxed and lively youth melodies are the construction of our new earphones.

SHARK sound features
The sound of SHARK is balanced, the performance is comprehensive, good at performing Pop vocals, JPOP,ACG and other types of tracks. As its name suggests, SHARK has made special adaptations for the band category, focusing on the stage and the atmosphere of the scene, the sound is infectious, and it is unforgettable.

Quadratic element
LETECIEL has specially created SHARK themed badges, which come in a set of three, and you can randomly get one of them in the product packaging. 58mm tinplate badge, laminated/digitally printed, Dutch needle metal back cover.

Multicolor panel
The panel color of the SHARK is brilliant and psychedelic. With the change of light and observation angle, the panel shows a variety of colorful colors, creating a colorful and dazzling live atmosphere like live house stage lights.
It should be noted that the panel of the SHARK is completely hand-painted, and the panel of each earphone is slightly different.

Custom core, three-dynamic driver acoustic architecture
The SHARK use a three-dynamic driver acoustic architecture supported by two custom drivers, including a custom 10mm high-performance beryllium-plated dynamic driver and a custom double-dynamic coaxial driver. With the help of computer simulation technology, the internal structure, magnetic circuit, diaphragm and so on are further optimized and improved, bringing more excellent sound performance.

Comfortable to wear
The cavity of the SHARK is made of skin-friendly resin material, ergonomic in-ear design, light and comfortable to wear and not easy to slip at the same time, as far as possible to enhance the comfort of long-term wear.

Select accessories
The SHARK eartips, optional Junebarc's Ether eartips to enhance the energy and texture of the sound. The earphone cable is optional with 6N high purity oxygen-free copper earphone cable, which is soft, extremely low stethoscope effect, strong toughness and durable.

Specification
Brand: Leteciel
Model: Shark
Driver: 1 custom 10mm high performance Beryllium-plated dynamic driver + 2 custom coaxial dynamic driver
Sensitivity: 104dB SPL/mW
Impedance: 16ohm @1kHz
Frequency response: 20Hz-20KHz
Cable: 6N high-purity oxygen free copper cable
Connector: 2pin 0.78mm
Plug: 3.5mm
Cable length: 1.25m
The frequency graph for those who like to see such things



What do they sound like?

The Shark’s bass has sub-bass just its not the main focus it digs deep and has enought rumble to satisfy me the midbass has great snap and attack with good dynamics . The mids are at the forefront with a touch of warmth/thickness but still have some brightness without sounding thin the upper mids have enough bite to give guitars a pleasing aggressive presence. The treble is crisp but not sibilant or fatiguing, cymbals sound natural with a nice decay placed right where they should be not artificially forward. They manage to have a suprisingly wide staging while being bassy enough to make drums and bass guitar meaty. The impressive thing is these little wonders have great depth allowing for a far more realistic layering experience than expected at this level.

I want to really enjoy my music. Something that releases the full scope of what the artist created in the studio. The Shark does that with cohesion ensuring to there’s no jarring transitions between the frequency range. The SPhark is a slightly warm, lush signature, bass is textured, dynamic and layered. The mids are slightly warm and don’t colour the vocals there is a little extra body to males vocals, female are realistic and sweet with a natural timbre. The vocals are front and centre with instruments placed exactly where they should be showing depth to the stage with natural unforced width. The Shark’s dynamic drivers sound very coherent no trace of uneven timbre just everything working together as one.

What do I mean by unforced width? Some IEMs give an impression of super wide stage which sounds unnatural throwing instrument placement off. With the Shark the staging is reliant on the production of the music, if a song is intimate that’s how it is rendered if the song has wide deep and tall production values the Shark presents it that way which at this price point is rare.

The mids are natural and organic, with just enough edge to add excitement to vocals and guitars causing me to be drawn into the music, Pianos and Guitars are given a really even treatment with extra note weight sounding exactly as you would expect if you were in a concert hall.

The Transition from upper mids to lower treble is boosted slightly but still sibilance free, even with songs that have sibilance bult into the recording. The little bump in this region just edges them into excitement in this area. To be totally honest theShark is not very tip reliant I found with wide bore tips there was a more pleasing treble and a more open sound in general with narrow bore tips the whole signature became a bit warm and thickened up. I settled on large Divinis Velvet wide bore tips these gave me the perfect balance of warmth and treble extension, On the subject of tips while Leteciel give a generous selection of tips I couldn’t get a good seal with any of them, I have very big ear canals.

The timbre and tactility of drums, strings, guitars and brass instruments is very natural all instruments find their own place. Vocals both male and female are reproduced authentically with emotion, every inflection, intonation is apparent as a singer climbs the scale to the crescendo it is presented well cutting through, if a voice has gravel you feel it. The SP01 is quite forgiving of poorly produced music.

The sound signature as a whole is of natural slightly boosted bass with clear clean mids with a little edge in the treble, giving an overall satisfying feeling of immersion in the music

When I'm evaluating IEMs I have a play list of roughly 100 songs of mixed genres. With the Shark again, I found myself listening to songs rather than analysing the different frequency ranges listening to albums in their entirety just loosing myself in the music. I found they worked across all the genres in my library always smooth and velvety . I don’t listen to much EDM but the SP01 played the Lordes’s “Royals” well its real strength was with the subbass digging down deep and Lordes vocals cutting through with an expansive sense of space and layering.

a-ha - Take on me sounded wonderfully full and clean with the crisp drums and lush keyboards . Morten Harket’s soaring tenor vocals sounding full and sweet with no thinness the layering in this 80s classic synth-pop song was produced with expert precision a really enjoyable listen

Adele – Hello, this torch song classic with moody piano intro and breathy vocals reproduce with just enough warmth and weight to draw you in slowly building to the big glide up the vocal register to the masterful high notes Adele is famous for the Shark manages to keep up without any distortion infact they present the nuances in the notes being sung so effectively . The staging is also brilliantly reproduced increasing the atmospherics greatly.

Steely Dan's – Black Cow, one of the best produced albums in my opinion was played with a breathtaking expertise at this price range, drums, keyboards, vocals , hi-hats and cymbals were natural with excellent decay space and staging with good height, depth and width enabling me to pick out instruments in the mix, there was a little warmth in this song but it still felt open and airy with the layering of the instruments in a class above its price bracket very enjoyable.

Steven Tyler- My own worst enemy this is one starts with a sparce acoustic guitar and tambourine with Tylers gritty vocals and slowly builds with new instruments being introduced as this slow ballad builds Tylers elastic vocals stays front and centre as the song becomes a multilayered wall of sound the Shark manages to keep the huge production in control avoiding any congestion, impressive.

Led Zepplin – Since I’ve been loving you
The lead guitar intro is perfectly presented sweet and keening the drums with that slow heavy rhythm, then as the song builds, keyboards the cherry on the cake comes with Plants unmistakeable vocals reaching for the sky as the song builds in intensity to a cohesive whole with the wailing Plant cutting through like a hot knife in butter. The Shark excels presenting Zepplin vocals they are the star of the show never overpowered by the drums and guitar.

Steve Earle and the Dukes- The Hard Way
Crisp drumming introduces the song with piano and acoustic guitars as Steve Earles unmistakable vocals the production is big and airy with a solid bass flooring in the style of many Bruce Springsteen albums this can sound a bit dry on other lesser iems, here it sounds rich and smooth and layered. The layering is just astounding at this price point with each instrument being given enough space to be able to pick them out and follow them.

The Hu – This Mogul (with William DVall) –
The dynamics of this track are huge with drums guitars and Mongolian instruments, the Horsehead fiddle, Tovashuur, Tumar Khuur, Tsuurare and Mongol throat singing with a special guest William DuVall of Alice in Chains. The power of this dense, complex and rhythmic masterpiece is reproduced with accuracy and weight the driving rhythms are dynamic and punchy, I didn’t hear any congestion in the instrumentation despite the density of this track. The vocals of William DuVall stood out against the wall of instruments and were on point and unveiled just good headbanging fun. The Shark didn’t feel exposed with faster tracks with instruments in the same frequency range still being given space to be heard with little to no congestion.

The Shark is an easy to drive iem I had no issues using them with my phone, Daps, Dongles in getting loud enough, the dynamics and open sound was present with all sources the texture and layering they are capable of was available for all to some degree.

They sounded good with neutral or warm sources. This is an iem that doesn’t need a powerful source but it does scale impressively.

I'm not a fan of analytical sounding IEMs that force details into your ears like a photograph with HDR and sharpening set at max a decidedly digital representation. I'm more Vinyl on a turntable, Leica manual focus, sumptuous colours on kodak colour gold film, kinda guy, where if you look really close all the details are there but it's the whole image you appreciate rather than just how sharp it is.

Sources used:



IBasso dx170
Shanling H5
HiBy R6 111
HiBy R8
Sony ZX707
Sony nw-a55
Sony Xperia V
Penon tail dac /amp
Cayin N3 Ultra
Venture Electronics VE RunAbout RA 2B-FE 2BFE
FIIO M15

When using my different sources I didn’t favour the more powerful ones the extra dynamics and layering and technical presentation was apparent but the overall musical presentation was the same.

Comparison



Penon Serial

The Shark is the equivalent of the Penon Serial’s younger sibling whose just come of age vying for the same partners running track they might not be ready to win every race but they are coming really close 2nd.
That is to say the share more similarities than differences the Shark is smaller more comfortable the Serial has a bit more detail in the bass, I’m talking nuances here, a touch more extended in the treble but the mids are even Stevens. I would say differences are more in the personal tastes area rather than objectively better.

ARTTI R1
The Shark eats the ARTTI R1 for breakfast the R1 just can’t compete in any of the frequency ranges coming across as slightly harsh and hard edged in comparison to the Velvet smooth transitions the Shark has.



Conclusion
The around $100 range is full of great sounding iems with more released it seems on a weekly basis the Leteciel Shark more than competes it’s an exceptional iem that redefines what’s possible at this price and sets a new standard. It’s fun and exciting sound signature that lets your music flow effortlessly. The Shark is a reasonabley technical iem that plays more on its smooth musicality. Its ability to transport you into the realm of of Musical bliss . I fully recommend you check out the Leteciel Shark its my choice for around $100

Hello everyone! I'm happy to see you here again with another review. I’ve spent the last two weeks with the new IEMs from Leteciel, the Leteciel SHARK – IEMs with three dynamic drivers in each (3DD), priced at around $110. I got this opportunity courtesy of Penon Audio, and I’m very grateful to them for that!

Disclaimer​

As mentioned at the beginning, I received the IEMs from Penon Audio in exchange for my honest review, but still – my opinions about the IEMs are personal and written based on my own experience with them, and I was not paid for this review. Additionally, this review was translated from Hebrew using translations tools, if you wish to read the review in it's native language, you may do that at this following link.

What's in the box?​

Thanks for asking! Well, I’ve received a few requests mentioning the lack of an unboxing video for these IEMs. So, I listened to the requests, and here’s the pilot:


Did you like it? I'd love to hear your thoughts!

The unboxing experience is truly exceptional compared to what’s usually offered, especially in this price range. Even before opening the box, there’s a cute welcome surprise – an anime band that you can assemble and create a cute little band that can be placed on your desk or anywhere else you like. It’s a fun and quirky addition, especially for anime lovers (like me~).



Inside the box, you'll find a picture of the anime band featured on the packaging, a high-quality denim-style case, an anime pin, one type of silicone ear tips, and the IEMs themselves with the cable already attached—just take them out, plug them in, and enjoy. Personally, I would’ve liked to receive more types of silicone ear tips, but aside from that, the unboxing experience is very rich and unexpected for this price range, overall.




The cable of the IEMs very good. It is colored in black, the width of it is not particularly thick, and it is relatively flexible, but it does have a tiny bit of memory, though nothing that interferes with usage. Overall, I would say it’s quite comfortable. The ring around the cable split works great; it stays in place and is very easy to adjust, which is an area where many cables fall short, so I’m happy to see they did this right. The shape that curves around the ear is one of the most comfortable I’ve worn. The cable bends smoothly behind the ear without needing to adjust or pull it.

Honestly, it’s a great welcome, especially when the cable comes pre-attached to the IEM, so you don’t need to mess with it. And with an unboxing experience that leaves a smile on your face, great job.

Oh, and yes, there’s a right and left mark on the cable, but it’s not a big deal since the cable is already pre-attached to the IEM.



The carrying case that comes with the IEMs is very high quality. It's a bluish color with a denim texture. It’s rectangular, opens and closes with magnets, and is quite convenient for carrying, fitting into a pocket.

It reminds me of the case that comes with the ISN Audio NEO 3, which are IEMs that cost twice as much, so that’s a nice touch.
Quality, comfortable, compact. I would say, though, that at first, it’s a bit challenging to get used to its shape, since the IEMs are relatively large, so it takes a bit of practice. But once you get used to it, it’s comfortable.



When it comes to the silicone tips, I think this is where the package falls a bit short. There’s only one type of silicone tip included, and at first, when I started listening, I felt like something wasn’t quite right for my ear.
Yes, they were comfortable, but the sound didn’t feel like it was the best these IEMs could produce. After trying out some different silicone tips, I decided to stick with my beloved SpinFit CP100+ tips, and the sound improved dramatically.
However, everyone has different ears, and this might be a specific issue for me; but still, I would have liked to see a bit more variety in the silicone tips.
I would say, if you decide to buy these IEMs, get yourself some additional silicone tips so you can have the option to choose and see what works best for you (aka - tip rolling). It really makes a difference in both the sound and the overall experience, and significantly so! Don’t skip this part. Very important!!

Build Quality & Fit and Comfort​

The build of the IEMs is ergonomic, with a shape that fits relatively well to the human ear, making them very comfortable. The IEMs themselves are very beautiful, shiny, and glossy. They respond to light, so every time you move, they shine in a blue hue, which is quite cute and unique. Overall, I found them very comfortable to use, and combined with the comfortable cable they come with, the listening experience and comfort were excellent.

In Terms Of Sound​

Frequency response graph of the Leteciel SHARK from Squig (courtesy of Hu-Fi).

Apart from this review, I'm happy to announce that I have a measurement device for IEMs on the way, so soon I’ll be able to add my own measurements to my reviews and won’t have to rely on graphs from others. Thought that might be interesting . The tuning of the IEMs feels somewhat bass-focused, with enough sub and mid-bass to give body to the vocals, which are not so upfront but still very present, and at the same time, they’re not the warmest IEMs I’ve heard; maybe more "warmish".

Sub-Bass​

The sub-bass, which covers the lowest frequencies and often delivers the rumbling sensation rather than distinct sounds.

The sub-bass in these headphones is well felt. It can go deep, but in a way that isn't excessive. It feels quite high-quality, sitting in the background, ready to do its job. It's not the deepest sub-bass I've ever heard, but there's a nice balance with the other frequencies, which allows it to blend well into the overall sound. To be more specific, it's well felt and delivers a very good performance, but it doesn't steal the show from the other frequencies. Instead, it adds flavor and color to the music without taking over. When needed, it's very present, but as mentioned, it doesn't hinder the other frequencies from shining.

Mid-Bass​

The mid-bass, where the bass becomes more distinct and perceptible, is equally well-executed. In this range, you hear kick drums and some male bass vocals more clearly.

The mid-bass receives more emphasis and presence compared to the sub-bass. It feels full, with instruments like drums getting body, piano key presses feeling lively and deep, and guitars sounding more "acoustic," especially bass guitars. It's a very enjoyable experience. Male voices also get body and presence, feeling full. Despite the focus on the mid-bass, I wouldn't call these headphones particularly "warm," probably due to the good contrast from the higher frequencies. Overall, I think the bass in these headphones is excellent. It's rich, high-quality, and well-crafted. In metal tracks with lots of bass, as well as rock, the headphones managed to play the bass fast enough to satisfy. I don't think they can disappoint anyone, and I say this as someone who loves a lot of bass.

I think the headphones' character is somewhat "band-like," and you definitely get that vibe, both in the unboxing and the tuning. The drums, especially, feel alive in these headphones, with the nuances being very noticeable and a great performance from them.

I'd also like to mention the guitars. I noted they sound "acoustic," and this is really felt. The guitars have body, texture, and every strum gets a warm, pleasant touch. It's a very enjoyable experience, and these IEMs know how to deliver this very well. I was quite impressed!

Mids​

The mids are the home to most instruments and vocals.

In terms of midrange frequencies, the IEMs also manage to perform well. Guitars sound excellent, violins sound full, and both male and female voices sound great equally. They are relatively forward, but not excessively so. I feel like each instrument receives a nice level of attention, and the combination of low frequencies and midrange brings a lot of life to the mix, making it a very enjoyable experience. The IEMs excelled in pop songs, the way they played male and female vocals was wonderful, combined with instruments that sound full.

Listening to concerts was also a very enjoyable experience; for example, listening to the tracklist of Wicked was very immersive. Every vocal received good attention, and their positioning was precise, with great bass support.

Additionally, the album Tales Weaver Exceed by Vanilla Mood, which is composed entirely of instrumental music (highly recommended!), sounded really beautiful, and gave me the feeling of being in the concert itself. The instruments were well-positioned, felt full, and each one received individual attention. Overall, I think the midrange frequencies were done well and tastefully. I thoroughly enjoyed the amazing combination of bass and midrange. Great job, Leteciel!!

Treble​

The treble, which captures high-pitched sounds like cymbals, violins, and higher synthetic tones, adds brightness, sharpness, and sparkle to the music. However, excessive treble can lead to harshness or fatigue.

The treble in the IEMs provides enough contrast to the bass, but anyone looking for a lot of treble might not find it here. This is what gives these IEMs a more "intimate" feel, with a focus on vocals and other frequencies. The treble is there to balance, but it doesn’t get as much attention as the bass and midrange. I find this fitting for the tuning that Leteciel chose to go with, and it blends very well. Nuances like guitar plucks, cymbals, and so on sound excellent; they integrate nicely with the instruments.

Overall, I think Leteciel did a good job with the treble in the IEMs. It’s present, not the most prominent, provides excellent contrast to the bass, and still doesn’t tire or become harsh on the ears. I’d say the main focus in these IEMs is the bass, at least based on my experience. Again, it’s not that there’s no treble, there’s enough of it, and it’s enough to make me happy. But for electronic music, I don’t think this would be my first choice. These IEMs are more suited for songs with vocals and instruments, but less so for electronic. That said, I did enjoy listening to electronic music with them, and they delivered a good performance, but they wouldn’t be my first pick for the genre.

Technical Capabilities​

The technical capabilities of these IEMs are nothing short of impressive. The soundstage feels quite wide, with instruments having room to breathe and shine. Separation capabilities are pretty good for the price range. But the imaging... wow! That was the first thing I noticed about these IEMs. The combination of a fairly wide soundstage and great imaging makes these IEMs stand out in the technical department, especially for the price range they compete in, in my opinion. Detail retrieval is also quite good, with nuances in the midrange and low frequencies receiving great attention. Overall, excellent technical performance, especially considering the price that Leteciel is asking for. I really enjoyed them.

Comparisons​

Letshuoer S12 (Full review here)​

The Letshuoer S12 are in-ear monitors with a single planar magnetic driver. I’d say the comparison between them is quite interesting; the S12 offers a brighter tuning, with less emphasis on bass, and more focus on mids and treble. Meanwhile, the Leteciel SHARK feel a bit warmer, less treble-focused, and give more attention to the mids and nuances in the lower frequencies. In terms of technical abilities, I’d say they are on the same level, which is amazing in my opinion. The imaging on both is very good, and the soundstage feels wide. When choosing between the two, I would lean more towards the type of music I listen to, as each has its strengths and weaknesses. For electronic music, I’d prefer the S12, but for pop music or music that primarily features instruments, I’d prefer the Leteciel SHARK. In terms of build quality, the S12 are made of metal and are relatively small, so they don’t fully cover the ear, requiring a good seal to block out external noise. The Leteciel SHARK, on the other hand, provide better passive isolation and have a shape that fits the human ear more comfortably. To sum up: the Leteciel SHARK focuses more on the lower frequencies and midrange, while the S12 are brighter, with more emphasis on the high frequencies.

Sliivo SL41 mk2 (Full review here)​

The Sliivo SL41 mk2 are hybrid IEMs combining a dynamic driver (DD) with 4 balanced armature drivers (BA). Honestly, just like the S12 were an interesting comparison, this one is also relatively interesting. I would describe the Sliivo (allow me to shorten it and use this name, please ) as more neutral IEMs with boosted bass, and a bit more brightness (although there's great sub-bass enhancement), while the Leteciel SHARK are warmer IEMs with a focus on the nuances in the lower frequencies. I would say the comparison is relatively similar to that of the S12, except for the technical performance. From my feeling, the soundstage of the Leteciel SHARK feels wider, and the imaging is better compared to the Sliivo. In terms of comfort, I found the Leteciel SHARK more comfortable to wear than the Sliivo, because of their more ergonomic shape, while the Sliivo has a relatively flat shape. To sum up: the Leteciel SHARK are IEMs with a wider soundstage and better imaging, focusing on the nuances in the lower frequencies, while the Sliivo are neutral IEMs with a bass boost and are a bit more treble-heavy than the Leteciel SHARK.

Bottom Line​

The Leteciel SHARK are serious contenders in their price range. They offer a very satisfying package of accessories that left a smile on my face and gave a nice vibe, as if the box is inviting me to listen to the tracks. The IEMs themselves are very beautiful, with a shiny and glamorous structure, looking almost like a luxury, sparkling piece of jewelry, the kind that draws attention and invites you to listen. There’s no way you'd want to leave them just lying on a table or not admire their beauty.
Beyond that, the listening experience is relatively intimate and calm, with satisfying bass, a lovely focus on the low-end nuances of musical instruments. The packaging really reflects the vibe of the IEMs, with great emphasis on drums, guitars, cello, pianos, and violins. The bass plays a great role here, giving substance, foundation, depth, and shape to each instrument. For pop music, concerts, and solo instrumental pieces, they’re definitely my first choice.
And at their price? Good luck competing with that. Their technical abilities left me speechless, the soundstage is wide, and the imaging capabilities are nothing short of excellent.
The only downside for me was that the silicon tips that came with them didn’t fit my ears, so I switched to SpinFit CP100+. So, if you feel the same way I did and think something's missing, I’d recommend first trying to swap out the tips and see if it improves the sound. For me, after changing the silicon tips, the sound improved dramatically. But that’s a personal issue, and everyone has different preferences. In general, with any IEM, it’s always worth trying many types of tips to find the one that provides the best seal and comfort. It’s worth buying several types and styles and giving each IEM the tip that suits it best.
Overall, I think Leteciel has thrown a tough competitor into the ring in this price range. If they keep it up, I see a bright future for them in the market. These IEMs definitely earn my recommendation!

The Leteciel SHARK are available for purchase from Penon Audio's store via the following link (no affiliate marketing) for around 109.90$.

Thank you for reading, hope to see you in my next reviews~!