HIFIMAN HE-X4 Review: Ranked #33 of 308

Last updated: October 13, 2026

The HIFIMAN HE-X4 ranks #33 out of 308 total Over-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: HIFIMAN

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HIFIMAN HE-X4 - ranked #33 of 308 Over-Ear Headphones · Editor's rating 4.3/5

#33 HIFIMAN HE-X4 Discontinued eBay

Pros: Measured response gives it an excellent Harman preference score of 88 with a 2.03 dB spread.

Cons: Discontinued, so it is mainly found used. Sub-bass is 8.4 dB short at 30 Hz, so deep bass lacks rumble.

ReleasedMay 2021 (5 years ago)
BackOpen
ConnectionWired
Deviation From Target2.03 dB standard deviation
Driver TypePlanar magnetic
Form FactorOver-ear
Frequency Response20Hz - 20kHz
Harman Preference Score88 (measured by oratory1990, via AutoEQ)
Impedance25 ohms
Sub-bass ExtensionFalls 6 dB below target at 47 Hz (-8.4 dB at 30 Hz)
Tonal Tilt-0.09 (negative is warmer, positive brighter)
Weight0.9 lbs (420g)
EQ preset to match the Harman 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 AutoEQ from its measured frequency response.

FilterFrequencyGainQ
Low shelf105 Hz+6.5 dB0.70
Peak73 Hz-2.7 dB1.15
Peak1,909 Hz+5.4 dB2.30
Peak909 Hz-2.6 dB2.50
Peak236 Hz-2.1 dB0.75
High shelf10,000 Hz-3.9 dB0.70
Peak4,259 Hz+2.5 dB4.20
Peak3,059 Hz-1.1 dB3.88
Peak5,435 Hz-0.9 dB5.85
Peak6,777 Hz+1.3 dB5.95

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