Letshuoer S12 and Yu9 Que are in-ear monitors. Letshuoer S12 costs $150 while Yu9 Que costs $409. Yu9 Que is $259 more expensive. Yu9 Que holds a decisive 2-point edge in reviewer scores (6.2 vs 8.2). Yu9 Que has better bass with a 0.5-point edge, Yu9 Que has significantly better mids with a 2.2-point edge, Yu9 Que has significantly better treble with a 2.7-point edge, Yu9 Que has significantly better dynamics with a 6-point edge, Yu9 Que has significantly better soundstage with a 2-point edge and Yu9 Que has better imaging with a 0.5-point edge.
Insights
Metric | Letshuoer S12 | Yu9 Que |
---|---|---|
Bass | 7.5 | 8 |
Mids | 6.3 | 8.5 |
Treble | 5.3 | 8 |
Details | 7 | 7 |
Soundstage | 6.3 | 8.2 |
Imaging | 6.5 | 7 |
Dynamics | 1 | 7 |
Tonality | 6.1 | 8.1 |
Technicalities | 5.9 | 7.5 |
Letshuoer S12 Aggregated Review Score
Average Reviewer Scores
Yu9 Que Aggregated Review Score
Average Reviewer Scores
Letshuoer S12 Details
Driver Configuration: 1Planar
Tuning Type: V-shape
Brand: Letshuoer Top Letshuoer IEMs
Price (Msrp): $150
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Yu9 Que Details
Driver Configuration:
Tuning Type: n/a
Price (Msrp): $409
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Letshuoer S12 User Review Score
Average User Scores
Average User Score: n/a
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Yu9 Que User Review Score
Average User Scores
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Letshuoer S12 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.2Gaming Grade
BYu9 Que Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.4Gaming Grade
A-Letshuoer S12 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B- Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.
Average Technical Grade
B-- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Yu9 Que Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Refined execution with coherent frequency integration. Natural timbre reproduction and engaging presentation. Strong versatility.
Average Technical Grade
A- Good technical performance. Clear separation and decent detail retrieval across various tracks. Soundstage shows reasonable width and depth.
Letshuoer S12 Reviews
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Great package and some titles arguably A-Fresh Reviews original ranking
Fresh Reviews Youtube Channel
The most refined S12 to date. Smoothest treble out of all the S12, and very little Planar timbre while keeping up the great tech and detail. Jays Audio Youtube Channel
Planar with the most "wow" factor. Spacious heead stage Treble can be too much Tim Tuned Youtube Channel
Very energetic. Very detailed. Very bright. Noticeable recession in mids - it is V-shaped after all. Planar timbre is quite noticeable and can sometimes make this sound unnatural. Previously Owned
I think the s12 is fine, the pro and z12 don't add too much value Jaytiss Youtube Channel
Yu9 Que Reviews
Jaytiss
2025-08-09Clean neutral nice mids. This iem is dumb, just buy it. Jaytiss Youtube Channel
The YU9 Que sports a premium, durable resin shell in pure black with a metallic-feeling faceplate and a comfortable design featuring an anti-tragus catch. While the build itself feels handsome and unique, the included cable is criticized as wimpy and unpleasant, with a strong suggestion to upgrade it. Accessories are deemed solid, including a nice selection of tips and a particularly praised case with a soft, luxurious interior.
Sonically, the YU9 Que earns immense praise for its exceptional tuning, described as clean, resolute, and non-fatiguing. It delivers strong, textured bass that avoids being overwhelming, coupled with extremely well-done upper mids. While not class-leading in technicalities like micro-detail or instrument separation, its tonal balance is considered sophisticated and reminiscent of far more expensive sets like the Annihilator, even surpassing the Monarch MKII in tuning preference. It's highlighted as a fantastic all-rounder with a smooth, agreeable signature suitable for long listening sessions.
Despite its modest single dynamic driver + 3BA configuration and $49 price point, the YU9 Que is declared a very special and unique IEM, worthy of the hype it received. The review concludes it's a price leader and a highly competent package from a small brand, offering outstanding value and a beautiful, well-executed design that makes it an easy recommendation for those seeking a smooth, non-fatiguing sound.
Precogvision
2025-09-17Exceptional tuning and treble refinement; sets the benchmark at $400. Precogvision Youtube Channel
Letshuoer S12 User Reviews
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