Sensaphonics is a Chicago-based maker of custom-fit in-ear monitors and hearing protection, founded in 1985 by audiologist Michael Santucci. The company built its reputation on a hearing-health-first approach to stage monitoring, pioneering soft-silicone custom IEMs in the early 1990s as an alternative to hard-acrylic shells, with the goal of giving performers better isolation and clearer monitoring at safer listening levels.

The product line centers on custom-molded earphones for touring musicians, broadcast professionals, and motorsport drivers. Models include the 3DME Custom Tour Gen2 ambient-monitoring system, the multi-driver 2MAX and 3MAX, the 2X-S and D2 custom-fit earphones, the 321 Custom IFB earphone for broadcast cueing, the TC-1000 intercom headset, and the e-Racer for motorsports. Sensaphonics also offers in-house audiology services and hearing-conservation programs alongside the IEM business.

The company has supplied custom monitors to a wide range of touring acts and institutions, including the Chicago Symphony Orchestra, and is frequently cited in the live-sound community for its emphasis on safe stage volumes and hearing preservation rather than purely on transducer specs.

Sensaphonics has 4 products cataloged on Equipboard, including Headphones & In-Ear Monitors. Their gear is featured by 7 artists, with the strongest followings in Pop, Rock, and Funk / Soul. Notable users include Chris Martin, Jonny Buckland, and Guy Berryman.