Audio-Technica ATH-PACK4



Pure. Professional. Performance.

The ATH-PACK4 gives you a set of four M-Series headphones to cover all your professional monitoring and mixing needs – and at a reduced price, too. The pack includes one pair of ATH-M40x professional monitor headphones, which are tuned flat for incredibly accurate audio monitoring across an extended frequency range. An excellent choice for the engineer on a session, the M40x headphones feature 90° swiveling earcups, a collapsible design and two detachable cables (1.2 m – 3.0 m coiled and 3.0 m straight). The PACK4 also includes three pairs of ATH-M20x professional monitor headphones that can be used by musicians or others participating in a session. Tuned for enhanced low-frequency performance, the M20x headphones are conveniently designed with a single-sided cable and, like the M40x, feature robust construction and circumaural earcups for excellent sound isolation and comfort.

More About the M-Series Headphones

Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tight for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree, M-Series is an unmatched combination of audio and build-quality that gets the job done. Hour after hour, year after year.


  • Studio headphone pack includes one pair of ATH-M40x headphones and three pairs of ATH-M20x headphones
  • Cutting-edge engineering and robust construction
  • 40 mm drivers with rare earth magnets and copper-clad aluminum wire voice coils
  • Circumaural design contours around the ears for excellent sound isolation in loud environments
  • For professional studio tracking and mixing



Type Closed-back dynamic
Driver Diameter 40 mm
Magnet Neodymium
Voice Coil CCAW (Copper-clad aluminum wire)
Frequency Response ATH-M40x: 15 – 24,000 Hz
ATH-M20x: 15 – 20,000 Hz
Maximum Input Power ATH-M40x: 1,600 mW at 1 kHz
ATH-M20x: 700 mW at kHz
Sensitivity ATH-M40x: 98 dB
ATH-M20x: 96 dB
Impedance ATH-M40x: 35 ohms
ATH-M20x: 47 ohms
Weight ATH-M40x: 240 g (8.5 oz), without cable and connector
ATH-M20x: 190 g (6.7 oz), without cable and connector
Cable ATH-M40x: two interchangeable cables: detachable 1.2 m – 3.0 m (3.9′ – 9.8′) coiled cable and detachable 3.0 m (9.8′) straight cable
ATH-M20x: 3.0 m (9.8′) straight cable
Accessories Included ATH-M40x: Protective carrying pouch, 6.3 mm (1/4″) screw-on adapter
ATH-M20x: 6.3 mm (1/4″) snap-on adapter