The Mystic 8 is an all-balanced-armature in-ear monitor, typically priced around 999 USD before tax. It uses eight drivers in total, with four Sonion and four Knowles units. The design incorporates a low-pass filtering module, a three-way electronic crossover, and a four-way acoustic tube system. The shell is made from CNC-machined titanium alloy.
Since its release in February 2025, it has received considerable praise for its neutral, clean, and detailed sound. Typical price is 999 USD.
LETSHUOER MYSTIC 8 SPECIFICATIONS
- Drivers: 4 Sonion BA + 4 Knowles BA Drivers
- Sensitivity: 107dB
- Impedance: 18 Ohms
- Frequency response: 20Hz ~ 40kHz
- Shell material: titanium alloy
- Cable: Detachable 1.25m 8×20-core×0.05mm silver-plated monocrystalline copper cable
- Cable connectors: 0.78mm 2-pin
- Cable termination: 4.4mm balanced
Current price and availability
- Linsoul: Mystic 8
BUILD AND COMFORT
The shells are CNC-machined from titanium alloy with a “Vapor Black” finish. The design is part of Letshuoer’s Myst Series, with the Mystic 8, known as “Phantom Cat,” being the first model in the planned lineup.
The cable looks simple but is an 8-strand, 20-core, silver-plated monocrystalline copper design. It terminates in a fixed 4.4 mm balanced plug and attaches to the IEMs via standard 0.78 mm dual-pin connectors.
The IEMs are of medium weight and are quite comfortable. The cable feels slightly flimsy but works well in practice. I’m not a big fan of the fixed 4.4 mm termination, as I prefer the increasingly common interchangeable 3.5 mm and 4.4 mm systems. Balanced headphone output isn’t inherently superior in any meaningful way, and I mostly see it as a cost driver.
EAR TIPS
There are three types of ear tips included, each available in three sizes. They differ in bore width, which can have some effect on the sound.
As always, I use my own tips and not the included ones, but I tested some wide-bore, medium-bore, and semi-narrow options. As expected, the wider bore sounds a bit brighter, while the narrower bore softens the treble slightly and reduces some of the energy in the highs. The changes are not dramatic, but you can fine-tune the sound to your preference within reasonable limits.
LISTENING IMPRESSIONS
- Amplifier: Topping A90
- DAC: RME ADI-2 DAC FS
- Tips: AZLA SednaEarFit Xelastec
In The Mountains by Espen Eriksen Trio
The soundstage is wide and natural, and imaging is excellent. The bass is on the polite side quantitatively, but it stays in line with the rest of the mix, keeping everything well balanced. Detail retrieval is very high, and nuances come through effortlessly.
Angel by Massive Attack
The bass is tight and punchy. I can hear small details I often cannot, and everything feels very clean and natural. Vocals are clear and well separated.
Limit to Your Love by James Blake
Vocals are very clean, clear, and slightly crisp. The bass is on the more polite side in terms of quantity, but the quality is excellent.
Bullet in the Head by Rage Against the Machine
A very neutral presentation with a relatively polite bass presence, a vocal-focused midrange, and an overall snappy, responsive character.
Midnight City by M83
A very open soundstage with great imaging. The bass is polite in quantity but tight and detailed. This is a complex track, and the Music 8 handles it with ease.
Sit Down Stand Up by Radiohead
Very open soundstage, excellent instrument separation and layering. Neutral tonality.
Bli Med by Building Instrument
The drums are tight and tactile without overpowering, and the female vocals are lovely and intimate, carrying subtle nuances.
Rambling Man by Laura Marling
Excellently balanced presentation. Vocals are upfront yet smooth, with a high level of detail, fantastic layering, and excellent instrument separation. The bass is present but not overly full.
Sunrise by Norah Jones
As with many other tracks, I notice nuances and subtle artifacts I usually overlook, highlighting the exceptionally high level of detail. The bass is moderate in quantity but excellent in quality, and the presentation feels very neutral with nicely upfront vocals.
Jambi by Tool
Crisp, textured guitars. There’s many subtle details revealed that I often miss. Vocals are smooth and engaging without being laid-back, free of harshness or sibilance.
As Before by Olga Konkova
I find this track lacks some punch in the cajón drum, as is often the case with bass-light earphones. Otherwise, the presentation is well balanced, smooth, and detailed.
It Could Be Sweet by Portishead
Tactile but polite bass. Bright and clear vocals with occasional soft sibilants. Great layering.
Maple Noise by Greene Serene
The bass could be meatier, but this track rarely gets snappier. It’s crisp and tight, yet still smooth, with tons of subtle details — instrument vibrations and other nuances — revealed that lesser gear often misses.
Summer 3 Vivaldi Recomposed by Max Richter
Energetic and hyper-detailed, upfront and articulate.
Mahler’s Symphony No 2 III by Paavo Järvi
The kettle drums are a bit tame due to the polite low-end presence, but everything is clear and well-articulated, with excellent instrument separation and layering. The timbre is natural and fresh.
Take On Me – MTV Unplugged by a-ha
This magical version is clear and clean, every detail comes through.
WRAPPING IT UP
Sound Signature
The sound signature is primarily neutral. There’s no boosted bass or exaggerated highs—everything is well balanced. It’s not overly bright, not dark, not overly warm, and not too crisp. It’s definitely not overly bassy.
Treble
The treble is crisp and clear but never aggressive or too intense. Several tracks where I usually encounter edgy sibilance are very well behaved.
Midrange
The midrange is neutral yet very present. It’s clear and crisp in a smooth way—fresh and bright without lacking warmth or natural timbre.
Bass
The bass is also neutral and definitely not boosted. Some might find it a bit lean, but the detail and quality are excellent, with tight, hard-hitting punch.
Soundstage and Imaging
One of the most fascinating aspects of these IEMs is the huge soundstage and superb imaging. Sounds feel like they come from all around your head rather than inside it — at least that’s how I perceive it.
Detail, Dynamics, and Timbre
The level of detail you get from these IEMs is absolutely stunning—you really don’t need more detail than this. The dynamics are also impressive, and even though the bass is on the polite side, these IEMs can still hit hard when the track calls for it.
The timbre is open, clear, bright, and smooth, with a fresh and natural character.
COMPARISONS
Associated equipment:
- Amplifier: Topping A90
- DAC: RME ADI-2 DAC FS
Letshuoer Cadenza 4 vs Mystic 8
The Letshuoer Cadenza 4 is a four-driver IEM that looks quite different from the Mystic 8, but sonically they are very similar. Their sound signatures are almost identical, and in direct comparison they can be hard to distinguish at first.
However, the Mystic 8 delivers noticeably more refinement and a smoother overall presentation. In short, the Cadenza 4 offers excellent value, but if you want that final layer of detail and polish, the Mystic 8 may be worth the extra cost.
Noble Audio Van Gogh vs Mystic 8
The Van Gogh is a hybrid in-ear monitor featuring one dynamic driver and three balanced armature drivers from Sonion and Knowles. It’s priced at around 699 USD.
Its sound signature differs significantly from the Letshuoer Mystic 8. While the Mystic 8 is neutrally tuned with polite but textured bass and forward mids, the Noble Audio Van Gogh offers a warm, bass-heavy presentation with smooth, slightly distant mids and energetic yet liquid highs. The result is a more colored, and sometimes more “fun”, listening experience.
With EQ and optimal amplifier pairing, the Van Gogh can approach the Mystic 8’s balanced presentation, but the Mystic 8 remains more precise, dynamic, and neutral overall.
You can read my full comparison review here:
- Audio46: Van Gogh
Westone MACH 80 vs Mystic 8
The Westone Mach 80, like the Mystic 8, is an eight-BA IEM with a neutral tuning and a high level of detail. It is noticeably smaller and lighter, and it comes with more professional accessories such as a Pelican-style case, cleaning brushes, and Linum T2 connector cables for added durability.
Although their tonal balance is similar, their character differs. The Mystic 8 is more articulate, slightly brighter, tighter, and crisper, while the Mach 80 sounds smoother and more refined.
You can read my full comparison review here:
- Audio46: Mach 80
AMPLIFICATION
I have many amplifiers that are single-ended only and am not a fan of the fixed 4.4 mm jack. That said, the Alpha XI1 ONIX performed well, though I didn’t feel it fully brought out the Mystic 8’s potential. The xDuoo Link2 Bal2 sounded a bit more refined.
Using a 4.4 mm to 3.5 mm adapter, the DragonFly Cobalt offered a clear step up. The Chord Mojo was fantastic, as always.
With regards to desktop gear, the RME ADI-2 DAC FS DAC/Amp delivered excellent results, as did the Ferrum Erco and Topping A90 (amp only).
In conclusion, the Mystic 8 isn’t overly picky about amplification, but it does scale with the source. As a high-end, highly resolving earphone, it benefits from quality upstream gear, even though it still performs very well on a modest DAC/amp.
CONCLUSION
The Letshuoer Mystic 8 delivers a neutral and well-balanced sound, featuring crisp, controlled treble, a clear and prominent midrange, and tight, precise bass. The soundstage is expansive with excellent imaging, and the detail retrieval is exceptional. While the bass is on the polite side, the IEMs remain dynamic and can hit hard when required. Overall, they provide an open, natural, and highly refined listening experience.
If you are looking for a neutral and refined sounding IEM in this price class, the Mystic 8 definitely should be on your list.
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- Linsoul: Mystic 8
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