The LETSHUOER Soloist ranks #621 out of 1253 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 16, 2026 at 5:46 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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#621 LETSHUOER Soloist: $219 Discontinued eBay
Pros: A broadly balanced tuning with a preference score of 71 against the Harman target. About 3 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end.
Cons: An uneven response, 2.0 dB standard deviation from target. Discontinued.
Is the LETSHUOER Soloist right for you?
Buy it if
- you like extra bass (about +3 dB below 150 Hz versus the target).
- 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.
| Back | Closed |
|---|---|
| Connection | Wired (3.5mm) |
| Deviation From Target | 2.00 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 Dynamic (78mm Kevlar cone) |
| Form Factor | In-ear |
| Harman Preference Score | 71 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.2 dB at 30 Hz) |
| Tonal Tilt | -0.60 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -3.4 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 3 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 | -2.8 dB | 0.70 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 185 Hz | -4.4 dB | 0.83 |
| Peak | 802 Hz | +1.6 dB | 2.67 |
| Peak | 3,654 Hz | -3.1 dB | 1.83 |
| Peak | 6,115 Hz | +4.0 dB | 6.00 |
| Peak | 7,185 Hz | +2.0 dB | 5.41 |
Neutral target
Set a preamp of -3.4 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 93 out of 100, up from 32.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.3 dB | 0.70 |
| High shelf | 10,000 Hz | -2.4 dB | 0.70 |
| Peak | 174 Hz | -4.2 dB | 0.70 |
| Peak | 796 Hz | +1.7 dB | 2.53 |
| Peak | 3,654 Hz | -3.1 dB | 1.84 |
| Peak | 6,114 Hz | +4.0 dB | 6.00 |
| Peak | 7,182 Hz | +2.0 dB | 5.50 |
Studio flat target
Set a preamp of -2.5 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 89 out of 100, up from 14.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 168 Hz | -6.4 dB | 0.70 |
| Peak | 814 Hz | +1.6 dB | 2.47 |
| Peak | 2,422 Hz | +1.6 dB | 5.49 |
| Peak | 4,306 Hz | -4.2 dB | 4.65 |
| Peak | 4,872 Hz | -1.4 dB | 6.00 |
| Peak | 6,499 Hz | +2.6 dB | 3.60 |
Warm target
Set a preamp of -1.5 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 91 out of 100, up from 75.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.5 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 180 Hz | -4.2 dB | 0.88 |
| Peak | 805 Hz | +1.9 dB | 2.62 |
| Peak | 1,809 Hz | -1.1 dB | 2.61 |
| Peak | 3,654 Hz | -4.8 dB | 1.63 |
| Peak | 4,633 Hz | -1.7 dB | 6.00 |
| Peak | 6,192 Hz | +3.7 dB | 5.97 |
Bass target
Set a preamp of -3.4 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 92 out of 100, up from 77.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.0 dB | 0.70 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 188 Hz | -4.4 dB | 0.87 |
| Peak | 804 Hz | +1.6 dB | 2.71 |
| Peak | 3,654 Hz | -3.1 dB | 1.82 |
| Peak | 6,115 Hz | +4.0 dB | 6.00 |
| Peak | 7,184 Hz | +2.0 dB | 5.40 |
Bright 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 89 out of 100, up from 23.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.3 dB | 0.70 |
| High shelf | 10,000 Hz | +1.0 dB | 0.70 |
| Peak | 174 Hz | -4.2 dB | 0.70 |
| Peak | 788 Hz | +1.6 dB | 2.90 |
| Peak | 2,988 Hz | -1.4 dB | 1.50 |
| Peak | 5,810 Hz | +6.0 dB | 5.39 |
| Peak | 7,968 Hz | +1.5 dB | 2.97 |
V-shaped target
Set a preamp of -5.9 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 85 out of 100, up from 72.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.7 dB | 0.70 |
| High shelf | 10,000 Hz | +1.9 dB | 0.70 |
| Peak | 180 Hz | -3.0 dB | 0.92 |
| Peak | 5,754 Hz | +6.0 dB | 4.78 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the LETSHUOER Soloist 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 3 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 3 measurements from the squig.link databases of hbb, hobbytalk and tonedeafmonk. Thanks to each of them for publishing their work.