We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black open-back headphones with large ear cups and wing headband

Audio-Technica

Audio-Technica ATH-AD900x 53mm Open-Back Headphone

SKU CH-BRKC-59FHY MPN ATH-AD900x

Open-back headphones with 53 mm drivers deliver a wide 5 Hz to 35 kHz response and comfortable 3D wing support for long listening sessions

  • Driver size53 mm
  • Frequency range5 Hz-35 kHz
  • Impedance38 ohms
  • Power supply1,000 mW
  • Audio sensitivity100 dB/mW
  • Connection3.5 mm
  • Spacious open-back design creates natural soundstage
  • 53mm drivers with CCAW coils deliver wide 5Hz–35kHz response
  • 38-ohm impedance suits portable and desktop sources
  • 3D Wing Support adjusts automatically for pressure-free comfort
  • 0m cable with 3.5mm plug gives flexible connectivity

Audiophile Open-Air Headphones

The Audio-Technica ATH-AD900x is an open-back headphone built for critical listening. Its 53mm drivers with CCAW voice coils produce a wide 5Hz–35,000Hz frequency response. The lightweight honeycomb aluminum casing and self-adjusting 3D Wing Support housing remove pressure from the head. A 3.0m cable terminates in a 3.5mm plug.

Listeners Who Want Natural Spaciousness

The open-air design creates an airy soundstage suited to acoustic music, classical recordings and long mixing sessions where ear fatigue matters. The 38-ohm impedance works well with portable sources and desktop amplifiers alike. Buyers who need isolation from background noise or a closed-back presentation for recording booths should look at a different design.

Consistent Output Over Long Sessions

Large-aperture drivers and the open baffle dissipate heat naturally, so tonal balance stays stable during extended use. The CCAW voice coil keeps the moving mass low, preserving transient response without compression at 1,000mW input. The suspension system maintains a constant seal around the ears, preventing bass drift as the pads warm up.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $238.99
Pricier than about 90% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameAudio-Technica
Model nameATH-AD900x
Product typeHeadphone
Audio & video
Driver size53 mm
Frequency range5 Hz-35 kHz
Impedance38 ohms
Audio sensitivity100 dB/mW
Ports & slots
Connection3.5 mm
Power
Power supply1,000 mW
Size & build
Cord length3.0 m (9.8')
Shipping weight1.36 kg
Package size432 × 356 × 127 mm

Questions about this item

What source output impedance should I pair with the 38 ohm input impedance for proper damping?

A source with an output impedance of 3.8 ohms or lower will provide a damping factor of at least 10:1 with the 38 ohm load, keeping bass control tight and frequency response flat.

Will the 3.0 m fixed cable reach my desktop amp if the jack is on the rear panel?

At 3.0 m (9.8 ft) the cable spans most desk-to-rear-panel distances; if your amp sits farther away you will need a 3.5 mm extension cable.

How can I confirm the 53 mm drivers are reproducing the full 5 Hz – 35 kHz range after setup?

Play a logarithmic frequency sweep from 5 Hz to 35 kHz; you should hear continuous output without gaps, sudden volume drops, or audible distortion at either extreme.

More in Earbuds & Over-Ear Headphones

Similar items