imgAnaheim, CA (January 24, 2014)—Audio-Technica has updated its M-Series line of professional monitor headphones, releasing the new ATH-M20x, ATH-M30x and ATH-M40x.

All feature 40mm drivers with rare earth magnets and copper-clad aluminum voice coils, as well as a circumaural design that contours around the ears for sound isolation in loud environments. The ATH-M50x (featuring 45mm drivers) reportedly has the same sonic signature as the original ATH-M50 and adds refined earpads and three detachable cables. Both the ATH-M20x and ATH-M30x feature a single-side cable exit with a permanently attached 3m cable.

The ATH-M40x professional headphones are tuned flat for audio monitoring across an extended frequency range. They include swiveling earcups for convenient one-ear monitoring, professional-grade earpad and headband material, a collapsible design, and two detachable cables (a 1.2m-3m coiled cable and 3m straight cable). The M40x is intended for professional studio tracking and mixing, as well as DJ monitoring.

The ATH-M50x features the same sonic signature as the original ATH-M50, with the addition of refined earpads and three detachable cables (a 1.2m-3m coiled cable, 3m straight cable and 1.2m straight cable). The ATH-M50x is available in black, white (ATH-M50xWH) and limited-edition blue (ATH-M50xBL).

The ATH-M20x, ATH-M30x, ATH-M40x and ATH-M50x Professional Monitor Headphones will be available February 2014.