The LETSHUOER x Z Reviews Z12 ranks #288 out of 1118 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Shuoer
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#288 LETSHUOER x Z Reviews Z12: $159 Discontinued eBay
Pros: A broadly balanced tuning with a preference score of 76 against the Harman target.
Cons: Discontinued, so it is mainly found used. An uneven response, 1.9 dB standard deviation from target.
Is the LETSHUOER x Z Reviews Z12 right for you?
Buy it if
- you want the tuning most listeners prefer in blind tests out of the box (Harman score 76).
- you want sub-bass rumble that reaches down to 20 Hz.
Skip it if
- you want to buy it new: it is discontinued.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.85 dB standard deviation |
| Driver Type | Planar Magnetic |
| Drivers | 1 x 14.8mm planar magnetic |
| Form Factor | In-ear |
| Harman Preference Score | 76 (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 (-0.2 dB at 30 Hz) |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -4.4 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 Harman match with this EQ: 90 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 159 Hz | -2.6 dB | 1.01 |
| Peak | 697 Hz | +1.5 dB | 2.04 |
| Peak | 1,961 Hz | -2.5 dB | 2.72 |
| Peak | 3,091 Hz | +1.5 dB | 6.00 |
| Peak | 3,798 Hz | +4.4 dB | 3.23 |
| Peak | 7,534 Hz | -4.2 dB | 6.00 |
Neutral target
Set a preamp of -4.3 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 Neutral match with this EQ: 93 out of 100, up from 46.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.3 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 139 Hz | -2.6 dB | 0.76 |
| Peak | 686 Hz | +1.5 dB | 1.98 |
| Peak | 1,968 Hz | -2.5 dB | 3.03 |
| Peak | 3,093 Hz | +1.6 dB | 6.00 |
| Peak | 3,764 Hz | +4.4 dB | 3.59 |
| Peak | 7,540 Hz | -4.2 dB | 4.84 |
Studio flat target
Set a preamp of -5.6 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: 95 out of 100, up from 30.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.9 dB | 0.70 |
| Peak | 164 Hz | -4.5 dB | 0.82 |
| Peak | 715 Hz | +1.4 dB | 2.18 |
| Peak | 1,773 Hz | -1.5 dB | 3.60 |
| Peak | 2,726 Hz | +1.0 dB | 6.00 |
| Peak | 3,303 Hz | +5.5 dB | 3.36 |
| Peak | 4,044 Hz | +1.8 dB | 6.00 |
| Peak | 7,399 Hz | -4.4 dB | 2.59 |
Warm target
Set a preamp of -2.4 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 Warm match with this EQ: 91 out of 100, up from 70.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.5 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 147 Hz | -2.4 dB | 0.98 |
| Peak | 693 Hz | +1.7 dB | 1.96 |
| Peak | 1,983 Hz | -3.2 dB | 3.15 |
| Peak | 2,390 Hz | -1.4 dB | 6.00 |
| Peak | 3,677 Hz | +2.9 dB | 3.74 |
| Peak | 7,549 Hz | -6.6 dB | 2.91 |
Bass target
Set a preamp of -4.4 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 Bass match with this EQ: 92 out of 100, up from 66.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.0 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 159 Hz | -2.6 dB | 1.01 |
| Peak | 697 Hz | +1.5 dB | 2.04 |
| Peak | 1,961 Hz | -2.5 dB | 2.72 |
| Peak | 3,091 Hz | +1.5 dB | 6.00 |
| Peak | 3,798 Hz | +4.4 dB | 3.23 |
| Peak | 7,533 Hz | -4.2 dB | 6.00 |
Bright 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 Bright match with this EQ: 91 out of 100, up from 39.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.4 dB | 0.70 |
| High shelf | 10,000 Hz | -3.0 dB | 0.70 |
| Peak | 142 Hz | -2.7 dB | 0.76 |
| Peak | 1,962 Hz | -2.7 dB | 2.86 |
| Peak | 3,204 Hz | +1.8 dB | 5.80 |
| Peak | 4,130 Hz | +6.0 dB | 2.03 |
V-shaped 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 V-shaped match with this EQ: 88 out of 100, up from 71.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.7 dB | 0.70 |
| High shelf | 10,000 Hz | -1.7 dB | 0.70 |
| Peak | 1,939 Hz | -2.4 dB | 2.66 |
| Peak | 3,240 Hz | +1.9 dB | 4.74 |
| Peak | 4,196 Hz | +6.0 dB | 1.63 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the LETSHUOER x Z Reviews Z12 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 ankramutt, atechreviews, audioamigo, hbb, hobbytalk and vsg. Thanks to each of them for publishing their work.