Headphones and Earphones

Audio-Technica ATH-AD900X Over-the-Ear Headphones


Introduction to the Audio-Technica ATH-AD900X Headphones

Audio-Technica has been around for over 50 years making professional microphones, phono cartridges, and headphones. Given that it is nearly impossible to research audiophile headphones and not come across Audio-Technica in some fashion, I felt it imperative that I review a pair. Outside of brief, less than ideal listening at trade shows, the ATH-AD900X is the first headphone from Audio-Technica that I have used. In today's vast ocean of headphones, Audio-Technica's claim to fame is offering audiophile sound quality at an affordable price. The ATH-AD900X is the successor to the ATH-AD900 and unfortunately I haven't listened to the AD900 so this review will focus purely on the new ATH-AD900X. The only thing I will mention with regards to the model differences would be the subtle visual differences in the design. The open air cage that covers the back of the drivers is more spaced out on the newer AD900X, so much so in fact, that the insides are easily visible – a neat aspect. Also the logo and markings are in gold rather than the silver of the older model.


  • Design: Open-air Dynamic
  • Driver Diameter: 53 mm
  • MFR: 5 Hz – 35 Khz
  • Maximum Input Power: 1,000 mW
  • Sensitivity: 100 dB/mw
  • Impedance: 38 Ohms
  • Weight: 0.5 Pound
  • Cable: 3.0 Meters (9.8')
  • Connector: 3.5 mm (1/8") Mini-Stereo, Gold-plated
  • Accessory Included: Detachable 1/4" (6.3 mm) Adapter
  • MSRP: $299.95 USD
  • Audio Technica
  • SECRETS Tags: Headphones, Audio