Astell & Kern Odyssey Review: Ranked #763 of 865

Last updated: October 13, 2026

The Astell & Kern Odyssey ranks #763 out of 865 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: Astell & Kern

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Astell & Kern Odyssey - ranked #763 of 865 In-Ear Headphones · Editor's rating 2.2/5

#763 Astell & Kern Odyssey Discontinued eBay

Pros: Bass is lifted about 4.5 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. Lower mids sit within about 0.7 dB of target, keeping voices and guitars natural. It uses 2 x W9+ dynamic subwoofer + 5 x balanced armature + 2 x electrostatic tweeter + 1 x bone conduction with an easy 2.1 ohm load.

Cons: Discontinued, so it is mainly found used. Presence sits about 5.6 dB low with a 7.7 dB dip near 5.2 kHz, so vocals and instruments lose some bite. The 4.5 dB bass lift can sound boomy and mask midrange detail. A Harman score of 52 places it in the lower part of the in-ear rankings.

ReleasedSep 2022 (4 years ago)
ConnectionWired
Deviation From Target3.32 dB standard deviation
Driver TypeHybrid
Drivers2 x W9+ dynamic subwoofer + 5 x balanced armature + 2 x electrostatic tweeter + 1 x bone conduction
Form FactorIn-ear
Frequency Response5Hz - 100kHz
Harman Preference Score52 (measured by HypetheSonics, via AutoEQ)
Impedance2.1 ohms
Sensitivity100 dB/mW
Sub-bass ExtensionWithin 6 dB of target down to 20 Hz (+3.1 dB at 30 Hz)
Tonal Tilt-1.43 (negative is warmer, positive brighter)
EQ preset to match the 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 AutoEQ from its measured frequency response.

FilterFrequencyGainQ
Low shelf105 Hz-3.8 dB0.70
Peak176 Hz-4.2 dB0.88
Peak4,993 Hz+3.7 dB1.35
Peak749 Hz+2.4 dB1.97
Peak3,389 Hz+3.9 dB3.43
High shelf10,000 Hz-2.1 dB0.70
Peak9,716 Hz+2.3 dB2.62
Peak1,811 Hz-1.4 dB2.52
Peak62 Hz+0.5 dB2.14
Peak1,043 Hz+0.4 dB2.29

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