The Harmonic Empire GuoJia ranks #1000 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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#1000 Harmonic Empire GuoJia: $119.00 Tangzu $119.00 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 6 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 GuoJia right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 5.6 dB below target).
- you are happy to use EQ: our preset lifts its Harman match by about 18 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $95 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.59 dB standard deviation |
| Driver Type | Dual Dynamic |
| Drivers | 2 x 10mm dynamic drivers (solid wood sliced diaphragm + PET diaphragm) |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz |
| Harman Preference Score | 64 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 20 ohms |
| Sensitivity | 114 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.0 dB at 30 Hz) |
| Tonal Tilt | -0.68 (negative is warmer, positive brighter) |
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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 82 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.6 dB | 0.70 |
| Peak | 266 Hz | -1.2 dB | 0.88 |
| Peak | 2,005 Hz | -1.3 dB | 3.31 |
| Peak | 3,527 Hz | +1.8 dB | 3.08 |
| Peak | 5,345 Hz | +5.9 dB | 1.02 |
| Peak | 6,758 Hz | -2.9 dB | 6.00 |
Neutral 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 79 out of 100, up from 36.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.0 dB | 0.70 |
| Peak | 4,642 Hz | +6.0 dB | 1.20 |
Studio flat target
Set a preamp of -6.6 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 82 out of 100, up from 17.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.6 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 23 Hz | -1.7 dB | 2.61 |
| Peak | 67 Hz | +1.1 dB | 1.89 |
| Peak | 206 Hz | -2.8 dB | 0.62 |
| Peak | 487 Hz | -0.7 dB | 2.56 |
| Peak | 1,907 Hz | -1.5 dB | 3.21 |
| Peak | 3,573 Hz | +6.0 dB | 1.01 |
| Peak | 5,643 Hz | +3.4 dB | 5.80 |
Warm target
Set a preamp of -5.7 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: 87 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.8 dB | 0.70 |
| High shelf | 10,000 Hz | -2.9 dB | 0.70 |
| Peak | 2,003 Hz | -1.6 dB | 4.16 |
| Peak | 3,302 Hz | +1.6 dB | 4.69 |
| Peak | 5,345 Hz | +5.7 dB | 1.52 |
Bass 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 82 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.3 dB | 0.70 |
| Peak | 51 Hz | +1.0 dB | 1.57 |
| Peak | 266 Hz | -1.2 dB | 1.00 |
| Peak | 2,004 Hz | -1.3 dB | 3.31 |
| Peak | 3,527 Hz | +1.8 dB | 3.08 |
| Peak | 5,345 Hz | +5.9 dB | 1.02 |
| Peak | 6,757 Hz | -2.9 dB | 6.00 |
Bright 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 70 out of 100, up from 22.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 266 Hz | -1.2 dB | 0.66 |
| Peak | 1,999 Hz | -1.6 dB | 2.93 |
| Peak | 4,056 Hz | +6.0 dB | 1.14 |
| Peak | 5,672 Hz | +2.7 dB | 6.00 |
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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 66 out of 100, up from 51.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.8 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 70 Hz | +0.9 dB | 0.82 |
| Peak | 1,939 Hz | -1.5 dB | 2.17 |
| Peak | 3,807 Hz | +6.0 dB | 1.08 |
| Peak | 5,579 Hz | +3.0 dB | 5.13 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Harmonic Empire GuoJia 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 audioamigo, bassaudio and csi-zone. Thanks to each of them for publishing their work.