The Letshuoer S12 2024 Edition ranks #509 out of 1061 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 15, 2026 at 5:41 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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#509 Letshuoer S12 2024 Edition Discontinued eBay
Pros: The 2024 edition of Letshuoer’s 14.8mm planar IEM, in a titanium shell. Measurements show full sub-bass to 20 Hz (score 71 across six measurements).
Cons: Discontinued, so it is mainly found used.
Is the Letshuoer S12 2024 Edition right for you?
Buy it if
- you want sub-bass rumble that reaches down to 20 Hz.
- you are happy to use EQ: our preset lifts its Harman match by about 20 points.
Skip it if
- you want to buy it new: it is discontinued.
| Released | 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.09 dB standard deviation |
| Driver Type | Planar Magnetic |
| Drivers | 1 x 14.8mm planar magnetic |
| Form Factor | In-ear |
| Harman Preference Score | 71 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 102 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.4 dB at 30 Hz) |
| Tonal Tilt | -0.53 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 91 out of 100, up from 71.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.1 dB | 0.70 |
| High shelf | 10,000 Hz | -5.6 dB | 0.70 |
| Peak | 167 Hz | -2.3 dB | 1.03 |
| Peak | 1,696 Hz | -2.2 dB | 3.45 |
| Peak | 2,878 Hz | +1.7 dB | 4.79 |
| Peak | 3,565 Hz | +6.0 dB | 1.92 |
Neutral target
Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 92 out of 100, up from 34.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.6 dB | 0.70 |
| High shelf | 10,000 Hz | -5.6 dB | 0.70 |
| Peak | 154 Hz | -2.2 dB | 0.79 |
| Peak | 1,700 Hz | -2.2 dB | 3.51 |
| Peak | 2,878 Hz | +1.7 dB | 4.78 |
| Peak | 3,565 Hz | +6.0 dB | 1.91 |
Studio flat target
Set a preamp of -6.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 92 out of 100, up from 16.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.7 dB | 0.70 |
| High shelf | 10,000 Hz | -0.4 dB | 0.70 |
| Peak | 163 Hz | -4.1 dB | 0.78 |
| Peak | 688 Hz | +1.2 dB | 2.33 |
| Peak | 1,664 Hz | -1.9 dB | 3.16 |
| Peak | 2,600 Hz | +2.2 dB | 6.00 |
| Peak | 3,219 Hz | +6.0 dB | 1.81 |
| Peak | 4,020 Hz | +2.2 dB | 6.00 |
| Peak | 6,236 Hz | -1.9 dB | 3.03 |
Warm target
Set a preamp of -5.5 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 94 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -0.9 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 162 Hz | -2.1 dB | 1.18 |
| Peak | 678 Hz | +1.5 dB | 1.94 |
| Peak | 1,721 Hz | -2.5 dB | 3.50 |
| Peak | 2,772 Hz | +1.4 dB | 6.00 |
| Peak | 3,430 Hz | +5.3 dB | 3.12 |
| Peak | 4,200 Hz | +1.9 dB | 6.00 |
| Peak | 7,614 Hz | -3.5 dB | 2.32 |
Bass target
Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 92 out of 100, up from 75.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.7 dB | 0.70 |
| High shelf | 10,000 Hz | -5.6 dB | 0.70 |
| Peak | 171 Hz | -2.3 dB | 1.11 |
| Peak | 1,696 Hz | -2.3 dB | 3.44 |
| Peak | 2,877 Hz | +1.7 dB | 4.80 |
| Peak | 3,565 Hz | +6.0 dB | 1.92 |
Bright target
Set a preamp of -6.3 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 92 out of 100, up from 25.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.7 dB | 0.70 |
| High shelf | 10,000 Hz | -2.9 dB | 0.70 |
| Peak | 154 Hz | -2.3 dB | 0.81 |
| Peak | 651 Hz | +1.2 dB | 2.11 |
| Peak | 1,676 Hz | -2.6 dB | 3.13 |
| Peak | 2,957 Hz | +2.5 dB | 4.74 |
| Peak | 4,035 Hz | +6.0 dB | 1.15 |
V-shaped target
Set a preamp of -6.1 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 87 out of 100, up from 72.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.3 dB | 0.70 |
| High shelf | 10,000 Hz | -2.0 dB | 0.70 |
| Peak | 1,622 Hz | -2.5 dB | 2.43 |
| Peak | 2,902 Hz | +2.6 dB | 6.00 |
| Peak | 4,148 Hz | +6.0 dB | 1.03 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Letshuoer S12 2024 Edition 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 6 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 6 measurements from the squig.link databases of achoreviews, aden, audioamigo, cqtek, musicafe and sl0the. Thanks to each of them for publishing their work.