HIFIMAN RE400 Review: Ranked #57 of 68

Last updated: October 10, 2026

The HIFIMAN RE400 ranks #57 out of 68 total In-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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#57 HIFIMAN RE400: $19.99 Amazon eBay

Pros: A very low price makes it an easy backup pair or first wired earphone. The single 8.5mm dynamic driver, 32 ohm impedance and 102 dB/mW sensitivity work fine straight from a phone or laptop. Crinacle’s measurement shows a slightly bright tilt of about 0.6 dB, which gives a lean, light presentation for those who dislike bass-heavy sound.

Cons: A preference score of 60 with a 3.29 dB deviation from the target means the response is quite uneven, so some instruments and vocals will sound colored. There is no built-in microphone, so it cannot take calls. The KZ ATE and SoundMAGIC E50C are rated higher at a similar price.

BackClosed
Built-in MicrophoneNo
ConnectionWired
Deviation From Target3.29 dB standard deviation
Driver TypeDynamic
Drivers1 x 8.5mm dynamic
Form FactorIn-ear
Harman Preference Score60 (measured by crinacle, via AutoEQ)
Impedance32 ohms
Sensitivity102 dB/mW
Tonal Tilt+0.63 (negative is warmer, positive brighter)
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+6.0 dB0.70
Peak3,850 Hz+7.0 dB2.19
Peak170 Hz-2.3 dB0.43
Peak2,033 Hz-3.6 dB1.58
Peak801 Hz+1.9 dB1.59
High shelf10,000 Hz+1.7 dB0.70
Peak6,033 Hz-4.6 dB6.00
Peak4,799 Hz+2.1 dB4.73
Peak3,186 Hz+0.9 dB6.00
Peak3,794 Hz-1.0 dB6.00

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