The KZ Sonata ranks #933 out of 1291 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: KZ
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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#933 KZ Sonata: $179.99 Linsoul $179.99 eBay
Pros: A broadly balanced tuning with a preference score of 65 against the Harman target.
Cons: An uneven response, 2.9 dB standard deviation from target.
Is the KZ Sonata right for you?
Buy it if
- you are happy to use EQ: our preset lifts its Harman match by about 26 points.
Skip it if
- you want more bass (about 2 dB below target).
- you want the best value: the higher-rated EPZ G10 costs about $156 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.86 dB standard deviation |
| Driver Type | Balanced Armature |
| Drivers | 14 Balanced Armature drivers per side (28 BA total) |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz |
| Harman Preference Score | 65 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 24 - 28 ohms (standard 22 ohms) |
| Sensitivity | 111 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-5.7 dB at 30 Hz) |
| Tonal Tilt | +0.47 (negative is warmer, positive brighter) |
| Weight | Not specified |
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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 91 out of 100, up from 65.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.3 dB | 0.70 |
| High shelf | 10,000 Hz | -4.5 dB | 0.70 |
| Peak | 25 Hz | +1.7 dB | 1.28 |
| Peak | 80 Hz | -0.9 dB | 2.87 |
| Peak | 159 Hz | -4.4 dB | 0.84 |
| Peak | 784 Hz | +0.7 dB | 2.07 |
| Peak | 2,630 Hz | -2.6 dB | 6.00 |
| Peak | 4,170 Hz | +1.5 dB | 4.44 |
| Peak | 5,345 Hz | +5.8 dB | 2.74 |
| Peak | 7,638 Hz | -2.7 dB | 6.00 |
Neutral target
Set a preamp of -5.8 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 93 out of 100, up from 59.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -4.2 dB | 0.70 |
| High shelf | 10,000 Hz | -4.5 dB | 0.70 |
| Peak | 25 Hz | +1.2 dB | 1.50 |
| Peak | 76 Hz | -0.8 dB | 2.89 |
| Peak | 154 Hz | -4.5 dB | 0.77 |
| Peak | 749 Hz | +0.7 dB | 1.66 |
| Peak | 2,630 Hz | -2.6 dB | 6.00 |
| Peak | 4,168 Hz | +1.5 dB | 4.42 |
| Peak | 5,345 Hz | +5.8 dB | 2.74 |
| Peak | 7,638 Hz | -2.7 dB | 6.00 |
Studio flat target
Set a preamp of -3.8 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 93 out of 100, up from 42.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -6.8 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 23 Hz | +0.8 dB | 1.11 |
| Peak | 165 Hz | -6.5 dB | 0.82 |
| Peak | 2,893 Hz | +0.9 dB | 0.77 |
| Peak | 5,345 Hz | +3.4 dB | 1.71 |
| Peak | 7,515 Hz | -3.6 dB | 6.00 |
Warm 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 91 out of 100, up from 62.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.5 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 25 Hz | +1.7 dB | 1.29 |
| Peak | 80 Hz | -0.9 dB | 2.84 |
| Peak | 156 Hz | -4.2 dB | 0.88 |
| Peak | 779 Hz | +1.0 dB | 2.03 |
| Peak | 2,635 Hz | -3.4 dB | 3.71 |
| Peak | 4,444 Hz | +1.5 dB | 6.00 |
| Peak | 5,507 Hz | +3.8 dB | 3.96 |
| Peak | 7,693 Hz | -3.8 dB | 6.00 |
Bass target
Set a preamp of -6.3 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 83 out of 100, up from 50.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.8 dB | 0.70 |
| High shelf | 10,000 Hz | -4.5 dB | 0.70 |
| Peak | 57 Hz | +1.2 dB | 2.32 |
| Peak | 184 Hz | -4.2 dB | 1.13 |
| Peak | 2,629 Hz | -2.6 dB | 6.00 |
| Peak | 4,173 Hz | +1.5 dB | 4.48 |
| Peak | 5,345 Hz | +5.8 dB | 2.74 |
| Peak | 7,637 Hz | -2.7 dB | 6.00 |
Bright target
Set a preamp of -6.3 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 88 out of 100, up from 48.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -4.3 dB | 0.70 |
| High shelf | 10,000 Hz | -1.1 dB | 0.70 |
| Peak | 25 Hz | +1.2 dB | 1.44 |
| Peak | 76 Hz | -0.8 dB | 2.95 |
| Peak | 154 Hz | -4.6 dB | 0.77 |
| Peak | 756 Hz | +0.6 dB | 1.98 |
| Peak | 2,605 Hz | -2.3 dB | 6.00 |
| Peak | 4,196 Hz | +2.2 dB | 4.39 |
| Peak | 5,345 Hz | +6.0 dB | 1.67 |
| Peak | 6,887 Hz | -1.3 dB | 5.04 |
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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 80 out of 100, up from 51.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.9 dB | 0.70 |
| Peak | 64 Hz | +1.2 dB | 2.72 |
| Peak | 183 Hz | -2.8 dB | 1.48 |
| Peak | 2,611 Hz | -1.7 dB | 6.00 |
| Peak | 4,049 Hz | +2.1 dB | 4.24 |
| Peak | 5,345 Hz | +6.0 dB | 1.48 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the KZ Sonata 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 5 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 5 measurements from the squig.link databases of audioamigo, hbb, jaytiss, koi and pw. Thanks to each of them for publishing their work.
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