Coleman Audio is a New York–based pro audio company founded in 1988 by Glenn Coleman, a senior tech engineer at Atlantic Records Studios who recognized a need for purpose-built switching, monitoring, and metering gear in professional recording and mastering workflows. The company designs and manufactures rack and desktop hardware aimed at studio installations rather than consumer use, with a reputation for build quality reminiscent of classic analog consoles.

The product line centers on monitor controllers and signal routing tools, including the M3PH passive monitor controller (known for its 47-position stepped attenuator), the TC4 Mastering Transfer Console that combines monitor control with hardware insert switching, the TB4M stereo monitor controller with cue and talkback, the LS3 line-level selector, and the CA500EQ 500-series equalizer. Analog VU meters, speaker switchers, and other utility boxes round out the catalog.

Coleman Audio gear is widely used in mastering rooms and tracking/mixing studios for its transparent passive signal paths and precise level matching. The brand is carried by retailers such as Vintage King, Sweetwater, Alto Music, Red Beard Pro Audio, and KMR Audio, and is a familiar presence at AES and NAMM trade shows.

Coleman Audio has 7 products cataloged on Equipboard, including Active & Passive Monitors, Studio Monitor Management, and Accessories. Their gear is featured by 4 artists, with the strongest followings in Electronic and Rock. Notable users include Eddie Van Halen, DJ Ashba, and Knife Party.