Audio-Technica ATH-IEX1 Review: Ranked #118 of 148

Last updated: October 10, 2026

The Audio-Technica ATH-IEX1 ranks #118 out of 148 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: Audio-Technica

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#118 Audio-Technica ATH-IEX1: $1,200.00 B&H Photo Video eBay

Pros: A hybrid design pairing two dynamic drivers with two balanced armatures, and its 102 dB/mW sensitivity makes it easy to drive from a phone. It is rated above the Fidue A91 Sirius and FiiO FA7S.

Cons: A preference score of 54 in crinacle’s measurement places its tuning far from what most listeners prefer, a weak result for a flagship in ear. The Audio-Technica ATH-CK2000Ti is rated higher and costs less.

ReleasedNov 2019 (6 years ago)
BackClosed
Built-in MicrophoneNo
ConnectionWired
Deviation From Target3.30 dB standard deviation
Driver TypeHybrid (2 dynamic + 2 balanced armature)
Drivers1 x 9.8mm dynamic + 1 x 8.8mm dynamic + 2 x balanced armature
Form FactorIn-ear
Frequency Response5Hz - 50kHz (Manufacturer specified)
Harman Preference Score54 (measured by crinacle, via AutoEQ)
Impedance5 ohms
Sensitivity102 dB/mW
Tonal Tilt-0.55 (negative is warmer, positive brighter)
EQ preset to match the Harman target

Set a preamp of -6.9 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-2.4 dB0.70
Peak641 Hz+5.0 dB1.22
Peak1,454 Hz-7.5 dB1.77
Peak5,117 Hz+7.4 dB1.56
Peak3,198 Hz-6.2 dB3.37
High shelf10,000 Hz+0.8 dB0.70
Peak154 Hz-2.2 dB1.07
Peak67 Hz+1.0 dB1.34
Peak373 Hz+1.2 dB2.14
Peak6,320 Hz+0.9 dB6.00

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