The KZ EDCX ranks #661 out of 1061 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 15, 2026 at 5:41 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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KZ EDCX - ranked #661 of 1061 In-Ear Headphones · Editor's rating 3.5/5

Check price at Linsoul ($10.00) →

#661 KZ EDCX: $10.00 Linsoul $10.00 eBay

Pros: An ultra cheap single dynamic IEM. Measurements show full sub-bass to 20 Hz (score 67 across five measurements).

Cons: Bass sits about 3.0 dB above target, a bass heavy balance.

Is the KZ EDCX right for you?

Buy it if

you like extra bass (about +3 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 20 points.

Released	2022 (4 years ago)
Back	Closed
Connection	Wired
Deviation From Target	2.25 dB standard deviation
Driver Type	Dynamic
Drivers	1 x 10mm dynamic
Form Factor	In-ear
Harman Preference Score	67 (median of 5 squig.link measurements, calibrated to AutoEQ)
Sub-bass Extension	Within 6 dB of target down to 20 Hz (+1.8 dB at 30 Hz)
Tonal Tilt	-0.84 (negative is warmer, positive brighter)

EQ Presets

Target sound

Harman target

Set a preamp of -5.5 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 87 out of 100, up from 67.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-2.6 dB	0.70
High shelf	10,000 Hz	+1.3 dB	0.70
Peak	174 Hz	-4.2 dB	0.81
Peak	5,791 Hz	+6.0 dB	5.54

Neutral target

Set a preamp of -5.5 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 89 out of 100, up from 28.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-11.1 dB	0.70
High shelf	10,000 Hz	+1.3 dB	0.70
Peak	164 Hz	-4.0 dB	0.68
Peak	5,791 Hz	+6.0 dB	5.53

Studio flat target

Set a preamp of -4.5 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 87 out of 100, up from 10.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-12.0 dB	0.70
High shelf	10,000 Hz	+2.0 dB	0.70
Peak	163 Hz	-6.3 dB	0.72
Peak	739 Hz	+1.2 dB	2.65
Peak	2,562 Hz	+1.7 dB	3.24
Peak	4,225 Hz	-1.5 dB	6.00
Peak	5,861 Hz	+4.6 dB	5.66

Warm target

Set a preamp of -2.2 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 89 out of 100, up from 75.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-2.3 dB	0.70
High shelf	10,000 Hz	-1.2 dB	0.70
Peak	23 Hz	+1.0 dB	1.77
Peak	169 Hz	-4.0 dB	0.83
Peak	732 Hz	+1.5 dB	2.39
Peak	2,209 Hz	-0.9 dB	2.41
Peak	3,654 Hz	-2.4 dB	1.18
Peak	5,897 Hz	+3.3 dB	6.00

Bass target

Set a preamp of -5.5 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 88 out of 100, up from 76.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	+1.2 dB	0.70
High shelf	10,000 Hz	+1.3 dB	0.70
Peak	177 Hz	-4.2 dB	0.85
Peak	5,792 Hz	+6.0 dB	5.54

Bright 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 85 out of 100, up from 18.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	-11.1 dB	0.70
High shelf	10,000 Hz	+2.0 dB	0.70
Peak	164 Hz	-4.1 dB	0.67
Peak	710 Hz	+1.3 dB	2.56
Peak	2,219 Hz	-0.7 dB	1.94
Peak	5,461 Hz	+6.0 dB	2.85

V-shaped target

Set a preamp of -6.2 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 81 out of 100, up from 67.

Filter	Frequency	Gain	Q
Low shelf	105 Hz	+1.9 dB	0.70
High shelf	10,000 Hz	+2.0 dB	0.70
Peak	23 Hz	+1.1 dB	1.64
Peak	165 Hz	-2.9 dB	0.89
Peak	5,368 Hz	+6.0 dB	2.45

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Reviews, Comparisons and Sound Samples
- Frequency response measurements of the KZ EDCX by 5 squig.link measurers

Frequency Response

How the KZ EDCX 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.

KZ EDCXHarman target

Measurement data: median of 5 measurements from the squig.link databases of hbb, hore, ianfann, practiphile and suporsalad. Thanks to each of them for publishing their work.

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