HIFIMAN HE400se Review: Ranked #15 of 134

Last updated: October 10, 2026

The HIFIMAN HE400se ranks #15 out of 134 total Over-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: HIFIMAN

Prices on this page were last checked October 10, 2026 at 5:37 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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#15 HIFIMAN HE400se: $109.00 Amazon eBay

Pros: A preference score of 89 and a neutral tilt make this an accurate sounding planar for the money. Treble is within a fraction of a dB of target and the air band is only 1 dB high, so the top end is smooth and free of sharp peaks, with the largest at about 2.4 dB near 11.9 kHz. It matches the rating of the Beyerdynamic DT 880 at a lower price, with a modest 396 g weight.

Cons: Sub-bass is about 5 dB light and bass from 60 to 200 Hz is about 1 dB under target, so low end impact is limited. The low mids are about 1.6 dB elevated while a 4.8 dB dip near 2 kHz and a 2 dB upper mid shortfall can push vocals slightly back. At 91 dB/mW sensitivity it benefits from a headphone amp, and the open back leaks sound and provides no isolation.

ReleasedMar 2021 (5 years ago)
BackOpen
ConnectionWired
Deviation From Target1.98 dB standard deviation
Driver TypePlanar magnetic
Drivers1 x planar magnetic
Form FactorOver-ear
Frequency Response20Hz - 20kHz (Manufacturer specified)
Harman Preference Score89 (measured by oratory1990, via AutoEQ)
Sensitivity91 dB/mW
Tonal Tilt+0.05 (negative is warmer, positive brighter)
Weight0.9 lbs (396 g)
EQ preset to match the Harman 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 AutoEQ from its measured frequency response.

FilterFrequencyGainQ
Low shelf105 Hz+6.7 dB0.70
Peak1,968 Hz+5.1 dB2.37
Peak861 Hz-2.3 dB1.86
Peak101 Hz-2.4 dB0.32
Peak1,619 Hz+1.1 dB3.53
High shelf10,000 Hz-2.6 dB0.70
Peak138 Hz+0.7 dB1.98
Peak64 Hz-0.7 dB1.95
Peak251 Hz-0.4 dB2.33
Peak29 Hz+0.5 dB2.63

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