The KZ EDS ranks #1045 out of 1369 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 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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#1045 KZ EDS: 5.00 Discontinued eBay
Pros: About 4 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end.
Cons: An uneven response, 2.5 dB standard deviation from target. Discontinued.
Is the KZ EDS 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 to buy it new: it is discontinued.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.47 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic driver (dual-magnetic circuit) |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz |
| Harman Preference Score | 63 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 23 ohms |
| Sensitivity | 114 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+3.3 dB at 30 Hz) |
| Tonal Tilt | -0.89 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -4.1 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 Harman match with this EQ: 86 out of 100, up from 63.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -3.6 dB | 0.70 |
| High shelf | 10,000 Hz | -5.3 dB | 0.70 |
| Peak | 175 Hz | -4.7 dB | 0.89 |
| Peak | 722 Hz | +1.9 dB | 2.22 |
| Peak | 2,103 Hz | -3.4 dB | 3.60 |
| Peak | 3,048 Hz | +1.5 dB | 6.00 |
| Peak | 3,556 Hz | +4.2 dB | 4.56 |
| Peak | 5,036 Hz | -2.4 dB | 6.00 |
Neutral target
Set a preamp of -4.1 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: 87 out of 100, up from 23.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.9 dB | 0.70 |
| High shelf | 10,000 Hz | -5.3 dB | 0.70 |
| Peak | 174 Hz | -4.5 dB | 0.75 |
| Peak | 705 Hz | +2.0 dB | 1.95 |
| Peak | 2,107 Hz | -3.4 dB | 3.67 |
| Peak | 3,048 Hz | +1.4 dB | 6.00 |
| Peak | 3,555 Hz | +4.2 dB | 4.53 |
| Peak | 5,036 Hz | -2.3 dB | 6.00 |
Studio flat target
Set a preamp of -5.2 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 80 out of 100, up from 5.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +0.7 dB | 0.70 |
| Peak | 161 Hz | -6.9 dB | 0.76 |
| Peak | 730 Hz | +1.8 dB | 2.36 |
| Peak | 2,015 Hz | -2.2 dB | 4.57 |
| Peak | 3,284 Hz | +5.7 dB | 3.71 |
| Peak | 5,089 Hz | -4.6 dB | 6.00 |
Warm target
Set a preamp of -2.1 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 Warm match with this EQ: 90 out of 100, up from 69.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -3.4 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 174 Hz | -4.5 dB | 0.93 |
| Peak | 721 Hz | +2.1 dB | 2.21 |
| Peak | 1,596 Hz | -1.0 dB | 3.09 |
| Peak | 2,105 Hz | -4.3 dB | 3.66 |
| Peak | 3,491 Hz | +2.8 dB | 4.10 |
| Peak | 5,066 Hz | -6.1 dB | 6.00 |
| Peak | 7,591 Hz | -3.4 dB | 6.00 |
Bass target
Set a preamp of -4.1 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: 87 out of 100, up from 74.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 10,000 Hz | -5.3 dB | 0.70 |
| Peak | 181 Hz | -4.7 dB | 0.97 |
| Peak | 723 Hz | +1.8 dB | 2.34 |
| Peak | 2,102 Hz | -3.4 dB | 3.58 |
| Peak | 3,046 Hz | +1.5 dB | 6.00 |
| Peak | 3,556 Hz | +4.2 dB | 4.56 |
| Peak | 5,036 Hz | -2.4 dB | 6.00 |
Bright 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 85 out of 100, up from 14.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.9 dB | 0.70 |
| High shelf | 10,000 Hz | -1.7 dB | 0.70 |
| Peak | 76 Hz | -0.8 dB | 2.14 |
| Peak | 174 Hz | -4.5 dB | 0.73 |
| Peak | 701 Hz | +1.9 dB | 1.96 |
| Peak | 2,097 Hz | -3.4 dB | 3.55 |
| Peak | 3,057 Hz | +1.5 dB | 6.00 |
| Peak | 3,683 Hz | +5.6 dB | 3.23 |
| Peak | 6,071 Hz | +4.0 dB | 6.00 |
| Peak | 7,518 Hz | +1.7 dB | 6.00 |
V-shaped target
Set a preamp of -6.0 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 84 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.8 dB | 0.70 |
| High shelf | 10,000 Hz | -0.3 dB | 0.70 |
| Peak | 174 Hz | -3.3 dB | 1.04 |
| Peak | 657 Hz | +1.5 dB | 2.34 |
| Peak | 2,033 Hz | -3.2 dB | 2.69 |
| Peak | 3,025 Hz | +1.8 dB | 6.00 |
| Peak | 3,491 Hz | +4.1 dB | 5.91 |
| Peak | 5,349 Hz | +3.3 dB | 0.82 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the KZ EDS 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 jacstone, melatonin and pw. Thanks to each of them for publishing their work.