Dynamic, Beautiful, Brilliant – Letshuoer DX1 Dynamic Driver IEMs
Letshuoer DX1 is a $159 USD 11mm Single Dynamic Driver IEM / pair of earphones designed with a detachable cable, and available to purchase with a 4.4mm balanced plug and the star of today’s in-depth written review.
Introduction
Letshuoer is an IEM designer from China, best known for having both a few extremely popular entry-level IEMs, but also a couple of popular flagship models. I actually use the Letshuoer Cadenza 12 2025 every single day at the gym, so I can vouch for both the reliability and sonic quality of some of the products the company made.
As an Amazon Influencer, I earn from qualifying purchases, and using the purchase links in my reviews helps me maintain this website and Youtube Channel. Huge thanks to Letshuoer for providing us with the sample for this review.
Product Link
Amazon – https://amzn.to/4mKC6ax
Aliexpress – https://s.click.aliexpress.com/e/_oEE8q7a
Build Quality / Design
Letshuoer DX1 is based on a brand-new driver self-developed by Letshuper, with a 11mm size, dynamic working principle, and with a self-developed assembly structure, with high-precision CNC components. DX1 uses a diamond topology for the driver diaphragm, with a 5 kHz nozzle filter in the sonic tube, and with a nanoparticle coating for the dynamic driver.
In fact, those shells, I will complain a bit lower below about the weight, but are made of stainless-steel, and make DX1 one of the highest quality pair of earphones that I reviewed to date, in terms of construction quality.
If it is not yet evident, this pair of earphones is simply beautiful, with a champagne gold diamond patterned panel to complement the geometric topology coating of the driver. I initially thought the driver was going to be planar and open like HIFIMAN Susvara Unveiled, this is what the shell looks like.
Letshuoer DX1 comes with a 256-Core Silver Plated monocrystalline copper braided and shielded cable. You can order it with both a 3.5mm single ended plug, or with 4.4mm balanced plugs, allowing you to enjoy the IEMs regardless of what sources you prefer. Cable is detachable and uses 0.78mm dual-Pin plugs. With a SPL of 108 dB and Impedance of 30 OHMs, DX1 is fairly easy to drive, and should not be sensitive to source noise.
Fit / Subjective Usage
Letshuoer DX1 is a fairly heavy pair of earphones, they feel substantial, but come with a really high-quality cable that is flexible, but feels well-made. You can order them with a 4.4mm balanced plug which I like a lot, considering the price point. While I usually tend to replace the eartips for most IEMs, DX1 is a rare one that comes with some high-quality, but also unique fitting IEMS. They look a bit like trumpet heads, the eartips DX1 uses are a big part of the sonic performance, and allow for a much larger, wider opening of the sonic bore compared to most alternatives on the market.
Comfort is good, IEM shells are both ergonomic and small enough for all ears, just a bit heavy. You don’t need that much power to drive the DX1, and it is not sensitive to source noise. Passive noise isolation is modest, around 10dB, while leakage exists and can be heard by those in the room.
There is quite a bit of ventilation on DX1, but another reason to not replace the default eartips is that there is driver flex with most aftermarket eartips, and you have to slowly and carefully insert and take out the Letshuoer DX1 for best results. Void and driver flex being both present, you’d imagine that you’d feel this, but while wearing the DX1, the pressure equalizes rather quickly and you never feel the effect, only when quickly inserting or quickly taking out the DX1.
Sound Quality
Pairings – To test the Letshuoer DX1 IEMS, I have paired it with a selection of sources, including Rose Technics RT-5000, Dethonray Listening M1, Dethonray Clarinet, iBasso DX340, Lotoo PAW GT2. You can enjoy them with dongles too, including iBasso Nunchaku, or FiiO JM21. With most sources, I cannot hear the background noise level, and DX1 sounds pretty good regardless of the source quality.
Overall Signature – Letshuoer DX1 is a uniquely tuned IEM, it follows quite a specific tuning with a coloring that at first feels midrange-centric, but exploring it with most of music, they are made to sound sweet / pleasing / impactful with music that is compressed, processed, modern and recent. Somehow, DX1 works best with EDM, Dubstep, and very highly dynamically compressed music and it is not made for classical / orchestral pieces. It has a slight favoritism towards male voices, having a slightly more present and sweeter sounding lower midrange compared to the upper midrange, treble extension goes to 20 kHz, but there’s a roll-off effect above 10 kHz, and while the bass can reach 20 Hz, only songs that have a specific subsonic information will have impact in the sub, otherwise there’s a dip between 40 Hz and 70 Hz, so main bass is not overly warm. This kind of tuning emphasizes modern and dynamically compressed music.
Bass – We always start with the bass, because that’s what’s low in the frequency range, and DX1 is unique, it has a huge strength, power, kick and punch down to 20 Hz, but only between 20 Hz and about 35 Hz does it have presence, and it won’t add new bass where there’s isn’t any in the recording. This means that you can expect most music to sound really natural, sometimes mid centric, except for Dubstep, EDM and modern music with information recorded intentionally in the sub-lows. With these kinds of songs, DX1 really opens up to kick and punch and sounds like a club, it brings the party, the kick and the thump, offering an experience worthy of the most exciting night club. Above 40 Hz, there’s generally a recess in the bass up to about 85 Hz, so you won’t get a bass that works well with acoustic instruments, and instead the bass works really well with modern music, high dynamic compression, where most IEMS struggle.
Midrange – Letshuoer DX1 has a pumped-up, highly impactful sound, with a compression effect, raw and direct presentation. It reveals information and details well, has a slight bias to present more energy for the lower midrange, so male voices, as well as lower-pitched female voices have more presence and are more direct. This signature works really well for high-quality mixing and mastering, metal music, EDM, and Dubstep, male voices, and it is not designed for sad songs, female voices or classical music. In general, DX1 shows strength where other IEMS usually struggle, has a very low THD and distortion, even at extreme volumes. To give you some idea of how the signature works, it is better for Attila, than it is for Ghost, better for Dance Gavin Dance than it is for Silverstein.
Treble – Treble is a mixed bag, as it has a really nice extension and it is fatigue-free, but it is on the lower energy side of things. Somehow, it really comes alive with Dubstep, EDM and music with excellent mixing / mastering, so DX1 would be great if you needed a critical IEM to tell you when you’re going overboard and when you don’t have quite enough treble in the mix. DX1 will usually not be fatiguing, and have less treble energy even with fairly aggressive bands like Queen Kona. Peaking frequency is around 10 kHz, above which it softly rolls-off in presence and energy.
PRaT / Textures / Dynamics – D X 1 has a natural texture, it has quite a bit of revealing ability, including showing what kind of textures are more harsh, but thanks to a slightly less forward treble, along with the natural-intimate soundstage, you don’t hear the reflections of the textures, so instruments like trumpets don’t sound too harsh or aggressive, but synths really have an evident texture, you hear detail really well. Bass is very fast and capable, especially for electronic and dubstep music. You hear a ton of texture and impact in the bass, natural textures in the midrange and smoother / relaxed textures in the treble.
Volume Control – Letshuoer DX 1 has excellent control, low distortion at high volumes, and it stays fairly consistent regardless of the volume level, but it has a bias towards sounding much better if you decrease the power relative to the voltage, so with most sources, it sounds much better with gain set to low, you can get louder with a lower distortion, it is different from most IEMS that actually can sound a bit better on high gain.
Soundstage – Letshuoer DX1 is a more intimate sounding earphone, it has a natural separation between instruments but brings voices and instruments in your personal space, puts you right into action, creates the kind of sound that is engaging and gives you the vibes of the song first-hand with nothing in between you and the singer / interpret.
Value and Conclusion
When I first saw DX1 I assumed it was around 1K USD, that is how beautiful and just nice the design is, so when I heard that it only costs 159 USD I was like “WOW, that’s a super deal”. The package includes a nice transport case, balanced reliable cable, and sound is uniquely tuned for dubstep, EMD and commercial music.
At the end of the day, if you’re looking for beauty, a sound that really works well with recent music, and which shows the quality of the mixing / mastering, if you want a reliable pair of earphones, and if you’re into excellent price / performance ratio, Letshuoer DX1 is a pair of earphones you have to hear to really understand.
PROs
- Fairly comfortable
- Unique tuning that works really well with dynamically compressed and modern music
- Especially nice with EDM and Dubstep
- High-Quality Cable
- 4.4mm balanced plug
- Really awesome transport case
- Not that hard to drive
- Beautiful
Cons
- IEM Shells are quite heavy
- Does not work well with rock, and classical
Product Link
Amazon – https://amzn.to/4mKC6ax
Aliexpress – https://s.click.aliexpress.com/e/_oEE8q7a
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Full Playlist used for this review
We listened to more songs than those named in this playlist, but those are excellent for identifying a sonic signature. I recommend trying most of the songs from this playlist, especially if you’re searching for new music! The playlists are different for Spotify, Tidal and Youtube, and based on the songs I enjoy and are available on each!
https://www.youtube.com/playlist?list=PL_cjBXGmwSHSdGcwuc_bKbBDGHL4QvYBu
https://open.spotify.com/playlist/5J3oloz8Riy9LxEGenOjQ0?si=979ba4f082414be7
https://tidal.com/browse/playlist/330fd544-8e5b-4839-bd35-676b2edbb3d5
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