ESS 422H Hybrid

How do they sound? Just glorious! Improved from about 500Hz and up in every way, they still take no prisoners in the bass region. The Art of AMT Sound Technology.

High-End Sound at an Entry-Level Price

ESS 422H Headphones Review

The ESS 422H passed the Miles Davis test… I heard texture and breathiness

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ESS 422H Heil AMT Headphones

Easy to spot, more comfortable, better looking, and way less expensive at an introductory price of $199

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ESS 422H Headphones Review

The 422H offers stunning details, balance, and a fun, natural sound.

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The 422H Heil AMT Hybrid Headphones, with two drivers, one being the first Heil driver ever utilized in headphones, is downright scary good. The 422H is not only head of its class, but is its only occupant! Who could have seen this leap in technology? Sound as clear as light? ESS has boosted the fun factor and affordability in headphones by a country mile.


  • Art of AMT Sound Technology
  • Speaker Size:
    50mm Dynamic Orientation
  • Frequency Response:
    20Hz – 20KHz
  • Sensitivity:
    107 +/- 3dB at 1KHz 1mW
  • Impedance: 32 +/- 15% Ohm
  • R & L Balance:
    <3dB (20Hz – 10KHz 1mW)
  • Rated Input Power: 30mW
  • Maximum Input Power: 50mW
  • Carrying Case and Cables Included

HEIL Sound Technology

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