Letshuoer S12 Ultra - Reviews & Ratings
1 Review (A Tier | 8/10)
Summary
Reviewers consider the Letshuoer S12 Ultra to be a class leader that sets a high bar for control, tone, and stage. It rivals far more expensive sets in refinement while keeping the presentation alive and human. Technical skill serves emotion.
Letshuoer S12 Ultra Details
Driver Configuration: 1Planar (14.8 mm)
Tuning Type: U-Shaped
Brand: Letshuoer Top Letshuoer IEMs
Price (Msrp): $169
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Review
2025-10-05
8
Reviewer Score
Youtube Video Summary
LETSHUOER S12 Ultra wraps up the S12 line with a 14.8 mm planar driver and a familiar metal shell in gunmetal or mocha. The housing is vented, comfy for long sessions, and solidly built with a flat 2-pin interface that grips tips well. The stock package is practical: a soft case, a fair tip spread, a braided cable with swappable 4.4 mm termination, and even a plug-and-play USB-C DAC that performs capably for on-the-go use.
Sonically, this set aims for a mild V-shape with tasteful tweaks that elevate it over prior S12 iterations. There’s a touch more sub-bass than the S12 Pro and a smoother 10 kHz zone, reducing fatigue while keeping upper-treble reach for air. The presentation favors balance over sparkle: detailed without the brittle edge many planars flirt with, and notably non-fatiguing over longer listens. Technical chops are strong for the class—clean, clear, and “planar-fast”—though instrument separation can lag behind pricier hybrids, and the topmost “crispy” sheen is slightly restrained.
On graphs and in practice, S12 Ultra reads as a refined take on modern planars—more bass weight, tidier 4–6 kHz, and better treble behavior than its siblings. Listeners hypersensitive up top may still prefer something like the S15 for a softer treble contour, while those chasing maximal separation may lean to sets like AFUL Performer 7 (with a spicier treble). With the usual planar caveat about unit variance and fit, this edition comes through as the standout of the S12 series: a clean, engaging, and genuinely high-value recommendation under $500.
Jaytiss Youtube Channel
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| IEM | alt. Score |
|---|---|
|
Letshuoer S12 Ultra vs. Kiwi Ears Aether
Kiwi Ears Aether offers better mids.
|
7.9 |
|
Letshuoer S12 Ultra vs. Hidizs mk12 x Ducbloke
Hidizs mk12 x Ducbloke offers better dynamics.
|
7.6 |
|
Letshuoer S12 Ultra vs. Gizaudio x Binary Chopin
Gizaudio x Binary Chopin offers better mids.
|
7.5 |
|
Letshuoer S12 Ultra vs. Ziigaat Lush
Ziigaat Lush offers better mids.
|
7.5 |
|
Letshuoer S12 Ultra vs. Kiwi Ears KE4
Kiwi Ears KE4 offers better mids.
|
7.5 |
|
Letshuoer S12 Ultra vs. Crinear Daybreak
Crinear Daybreak offers better mids.
|
7.4 |
|
Letshuoer S12 Ultra vs. DUNU x KOTO ITO
DUNU x KOTO ITO offers better dynamics.
|
7.4 |
|
Letshuoer S12 Ultra vs. Truthear Nova
Similar overall performance.
|
7.3 |
|
Letshuoer S12 Ultra vs. Fiio FD 15
Fiio FD 15 offers better mids.
|
7.3 |
|
Letshuoer S12 Ultra vs. Letshuoer DX1
Letshuoer DX1 offers better mids.
|
7.3 |
IEM Finder Quiz
newAverage Technical & Tuning Grades
Average Tunign Grade
A-- It balances warmth and clarity well, showing only minor quirks along the way. Timbre feels believable with most instruments.
Average Technical Grade
A-- The presentation feels orderly, balancing workable detail retrieval with acceptable imaging cues. It keeps momentum without smearing transients.