HIFIMAN HE-R9 Review: Ranked #159 of 165

Last updated: October 10, 2026

The HIFIMAN HE-R9 ranks #159 out of 165 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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#159 HIFIMAN HE-R9: $79.00 Amazon eBay

Pros: Listeners who want a big bass boost get one, with the 60 to 200 Hz range about 8 dB above target and sub-bass extending to 20 Hz with no roll-off. The closed back keeps sound in and outside noise out. At 32 ohms it runs straight from a phone or laptop.

Cons: A preference score of 28 in oratory1990’s measurement reflects a heavily skewed tuning, with bass and low mids swelling over the midrange so voices sound muffled and boomy. A 7.6 dB peak near 8 kHz next to a 4.8 dB dip near 10 kHz makes treble uneven. At 328 g it is heavy for a closed headphone, and the Logitech G Pro X carries a higher rating.

ReleasedFeb 2022 (4 years ago)
BackClosed
Built-in MicrophoneNo
ConnectionWired
Deviation From Target4.30 dB standard deviation
Driver TypeDynamic
Form FactorOver-ear
Frequency Response15Hz - 35kHz (Manufacturer specified)
Harman Preference Score28 (measured by oratory1990, via AutoEQ)
Impedance32 ohms
Sensitivity100 dB
Sub-bass ExtensionWithin 6 dB of target down to 20 Hz (+1.0 dB at 30 Hz)
Tonal Tilt-2.05 (negative is warmer, positive brighter)
Weight0.7 lbs (328 g)
EQ preset to match the Harman target

Set a preamp of -6.1 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+5.9 dB0.70
Peak127 Hz-7.4 dB0.18
Peak1,761 Hz+6.8 dB0.80
Peak448 Hz+6.6 dB1.69
Peak57 Hz-3.1 dB0.69
High shelf10,000 Hz-3.5 dB0.70
Peak4,215 Hz+3.4 dB1.24
Peak3,235 Hz-5.0 dB3.16
Peak258 Hz-1.6 dB4.22
Peak205 Hz+1.2 dB3.57

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