The HiBy Zeta ranks #1068 out of 1398 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: HiBy
Prices on this page were last checked October 19, 2026 at 10:32 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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#1068 HiBy Zeta: $999.00 HiBy $999.00 eBay
Pros: A tribrid flagship with one dynamic driver, four balanced armatures and four electrostatic drivers per side, with sub bass reaching fully to 20 Hz and bass about 3.8 dB above target for a full, weighty low end. Lower mids and the 1 to 2 kHz range sit within 1 dB of target, so voices sound natural.
Cons: Upper bass is also about 4 dB high, which thickens the sound, and a 6 dB dip near 6.1 kHz followed by peaks near 7.9 and 10.6 kHz makes the treble uneven. Its preference score of 62 is ordinary for $999, and the ThieAudio Monarch MKIII scores far higher at a similar price.
Is the HiBy Zeta right for you?
Buy it if
- you like extra bass (about +4 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 23 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $975 less.
| Released | Feb 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.57 dB standard deviation |
| Driver Type | Tribrid |
| Drivers | 1 x 10mm liquid silicone dynamic + 4 x balanced armature + 4 x electrostatic |
| Form Factor | In-ear |
| Harman Preference Score | 62 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 9 ohms |
| Sensitivity | 112 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.7 dB at 30 Hz) |
| Tonal Tilt | -0.95 (negative is warmer, positive brighter) |
EQ Presets
Harman 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 85 out of 100, up from 62.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -3.1 dB | 0.70 |
| High shelf | 10,000 Hz | -1.6 dB | 0.70 |
| Peak | 158 Hz | -4.2 dB | 0.88 |
| Peak | 3,220 Hz | +3.4 dB | 4.16 |
| Peak | 5,783 Hz | +6.0 dB | 4.49 |
Neutral 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 87 out of 100, up from 23.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.6 dB | 0.70 |
| High shelf | 10,000 Hz | -1.6 dB | 0.70 |
| Peak | 145 Hz | -4.0 dB | 0.74 |
| Peak | 3,219 Hz | +3.4 dB | 4.15 |
| Peak | 5,782 Hz | +6.0 dB | 4.49 |
Studio flat 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 85 out of 100, up from 5.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 151 Hz | -6.5 dB | 0.78 |
| Peak | 3,012 Hz | +5.3 dB | 2.44 |
| Peak | 4,532 Hz | -2.6 dB | 6.00 |
| Peak | 5,892 Hz | +4.3 dB | 6.00 |
Warm target
Set a preamp of -3.3 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 90 out of 100, up from 69.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.8 dB | 0.70 |
| High shelf | 10,000 Hz | -5.2 dB | 0.70 |
| Peak | 154 Hz | -4.0 dB | 0.90 |
| Peak | 669 Hz | +1.7 dB | 2.58 |
| Peak | 1,703 Hz | -1.7 dB | 2.22 |
| Peak | 3,264 Hz | +2.2 dB | 5.87 |
| Peak | 4,546 Hz | -2.1 dB | 6.00 |
| Peak | 5,897 Hz | +4.3 dB | 6.00 |
| Peak | 8,000 Hz | -4.2 dB | 6.00 |
Bass 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 86 out of 100, up from 74.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.7 dB | 0.70 |
| High shelf | 10,000 Hz | -1.6 dB | 0.70 |
| Peak | 161 Hz | -4.2 dB | 0.92 |
| Peak | 3,220 Hz | +3.4 dB | 4.17 |
| Peak | 5,783 Hz | +6.0 dB | 4.50 |
Bright target
Set a preamp of -4.7 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 84 out of 100, up from 13.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.6 dB | 0.70 |
| High shelf | 10,000 Hz | +1.7 dB | 0.70 |
| Peak | 145 Hz | -4.1 dB | 0.71 |
| Peak | 4,885 Hz | +4.5 dB | 1.03 |
V-shaped target
Set a preamp of -5.0 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 83 out of 100, up from 66.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.4 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 147 Hz | -2.9 dB | 0.98 |
| Peak | 4,708 Hz | +4.8 dB | 0.97 |
- Links
- Reviews, Comparisons and Sound Samples
Frequency Response
How the HiBy Zeta 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 4 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 4 measurements from the squig.link databases of bedrock, eliseaudio, hu-fi and practiphile. Thanks to each of them for publishing their work.