The Letshuoer EJ09 ranks #385 out of 996 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Shuoer
Prices on this page were last checked October 14, 2026 at 2:38 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#385 Letshuoer EJ09 Discontinued eBay
Pros: A tribrid flagship whose bass and treble average within 0.1 dB of the Harman target (score 73 across seven measurements).
Cons: Discontinued, and its 2.16 dB spread from the target shows peaks and dips that cheaper IEMs avoid.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.16 dB standard deviation |
| Driver Type | Tribrid |
| Drivers | 1 x dynamic + 4 x balanced armature + 4 x electrostatic |
| Form Factor | In-ear |
| Harman Preference Score | 73 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) |
| Tonal Tilt | +0.07 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Letshuoer EJ09 measures across the audible range, against the Harman in-ear target that most listeners prefer in blind tests. Where the line sits above the target that range sounds louder (more bass, brighter treble), below it quieter. The curve is the median of 7 independent measurements, so one odd sample or rig cannot skew it, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: median of 7 measurements from the squig.link databases of aftersound, audioamigo, hbb, hobbytalk, practiphile, tonedeafmonk and yoshiultra. Thanks to each of them for publishing their work.