The Harmonic Empire Cai Wenji ranks #956 out of 1369 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Harmonic Empire
Prices on this page were last checked October 17, 2026 at 6:04 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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#956 Harmonic Empire Cai Wenji: 1.99 Shenzhen Audio eBay
Pros: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Cons: Treble about 5 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones. An uneven response, 2.6 dB standard deviation from target.
Is the Harmonic Empire Cai Wenji right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 5.3 dB below 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 22 points.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.58 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm PEEK+PU dynamic driver |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz |
| Harman Preference Score | 65 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 114 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.9 dB at 30 Hz) |
| Tonal Tilt | -0.81 (negative is warmer, positive brighter) |
| Weight | 0 lbs (3.9 g) |
EQ Presets
Harman 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 86 out of 100, up from 65.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.5 dB | 0.70 |
| High shelf | 10,000 Hz | -0.7 dB | 0.70 |
| Peak | 150 Hz | -2.1 dB | 0.82 |
| Peak | 704 Hz | +1.0 dB | 2.31 |
| Peak | 1,817 Hz | -2.0 dB | 2.49 |
| Peak | 3,549 Hz | +2.6 dB | 4.41 |
| Peak | 5,345 Hz | +6.0 dB | 1.07 |
| Peak | 6,887 Hz | -2.7 dB | 5.39 |
Neutral 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 87 out of 100, up from 31.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.0 dB | 0.70 |
| High shelf | 10,000 Hz | -0.7 dB | 0.70 |
| Peak | 138 Hz | -2.1 dB | 0.66 |
| Peak | 690 Hz | +1.1 dB | 2.10 |
| Peak | 1,822 Hz | -2.0 dB | 2.52 |
| Peak | 3,547 Hz | +2.6 dB | 4.35 |
| Peak | 5,345 Hz | +6.0 dB | 1.07 |
| Peak | 6,887 Hz | -2.7 dB | 5.38 |
Studio flat target
Set a preamp of -6.5 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 86 out of 100, up from 12.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.6 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 170 Hz | -3.9 dB | 0.73 |
| Peak | 696 Hz | +1.0 dB | 2.63 |
| Peak | 1,735 Hz | -2.0 dB | 2.62 |
| Peak | 3,573 Hz | +6.0 dB | 1.13 |
| Peak | 5,712 Hz | +3.8 dB | 5.83 |
Warm target
Set a preamp of -5.3 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 91 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.8 dB | 0.70 |
| High shelf | 10,000 Hz | -3.9 dB | 0.70 |
| Peak | 149 Hz | -1.9 dB | 0.92 |
| Peak | 703 Hz | +1.3 dB | 2.12 |
| Peak | 1,842 Hz | -2.4 dB | 2.89 |
| Peak | 3,464 Hz | +2.1 dB | 4.28 |
| Peak | 5,345 Hz | +5.3 dB | 1.41 |
Bass 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 87 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.3 dB | 0.70 |
| High shelf | 10,000 Hz | -0.7 dB | 0.70 |
| Peak | 27 Hz | +1.0 dB | 1.33 |
| Peak | 150 Hz | -2.0 dB | 0.89 |
| Peak | 712 Hz | +1.0 dB | 2.48 |
| Peak | 1,814 Hz | -2.0 dB | 2.46 |
| Peak | 3,549 Hz | +2.6 dB | 4.41 |
| Peak | 5,345 Hz | +6.0 dB | 1.07 |
| Peak | 6,887 Hz | -2.7 dB | 5.39 |
Bright target
Set a preamp of -6.5 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 74 out of 100, up from 18.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.1 dB | 0.70 |
| High shelf | 10,000 Hz | +1.4 dB | 0.70 |
| Peak | 143 Hz | -2.1 dB | 0.65 |
| Peak | 683 Hz | +1.0 dB | 2.14 |
| Peak | 1,882 Hz | -2.4 dB | 2.20 |
| Peak | 3,807 Hz | +6.0 dB | 1.26 |
| Peak | 5,586 Hz | +3.6 dB | 4.58 |
V-shaped 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 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 69 out of 100, up from 56.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.9 dB | 0.70 |
| Peak | 1,726 Hz | -2.2 dB | 1.96 |
| Peak | 3,807 Hz | +6.0 dB | 1.18 |
| Peak | 5,578 Hz | +3.3 dB | 4.78 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Harmonic Empire Cai Wenji 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, bassaudio, csi-zone, dvewlsh, fernandagunsan, hbb and soundignity. Thanks to each of them for publishing their work.