Jim Coles (born ca. 1980), professionally known as Om Unit, is a Bristol-based electronic producer and DJ known for his work in electronic music and drum and bass. Originally producing jungle as a teenager in the 1990s, he then turned to turntablism under the name 2tall. and released several Albums under this moniker in the 2000s. It wasn't until 2009 that the Om Unit alias came about with his debut release on a compilation for Fabric entitled 'encoder' which was swiftly followed by a white-label remix of Joker's classic 'Digidesign' and an EP called 'The Corridor EP' on Plasticians label Terrorhythm

in 2011 he found a more permanent home, with the record label Civil Music taking up release and management duties, releasing 3 EP's namely. The Timps, Transport and Aeolian, followed by a full length LP entitled "Threads" to critical acclaim. During this time he worked on a one-off EP with Machiendrum entitled 'Reworkz' under the alias 'dream continuum' for Planet Mu. and arguably was one of the first people to fuse the style of Chicago footwork with classic jungle music under the alias 'Philip D Kick', which led to be a highly influential project both to modern drum n bass producers and footwork producers alike.

In Parallel to these ventures, Om Unit started his own record label Cosmic Bridge in 2011 which has since released music from the likes of Kromestar, DJ Madd, Boxcutter, TMSV, Graphs, Danny Scrilla, J(ay) A.D. Neuropol, Moresounds and J:Kenzo as well as himself with his own 'Torchlight' series of EP's and his series of 'Cosmology' compilations featuring exclusive tracks and remixes from artists from the label.

Following on from the exploration of his Jungle roots with projects like Philip D Kick, Om Unit set about working with seminal Drum N Bass label Metalheadz and releasing one EP and a full length LP in 2014 entitled Inversions which came about through a creative relationship with Goldie, who allowed him access to original DAT tapes containing samples from his personal archive. Alongside this he has also released 3 EP's with fellow Bristolian Sam Binga, the first of which was released on DBridge's label Exit Records.

in 2016 he was involved with a group project for Exit under the alias "Richie Brains", with an LP of works from himself, Sam Binga, Alix Perez, Chimpo, Fixate, Fracture, and Stray who collaborated over a series of sessions to put together a collection of works that became the full album.

Om Unit is also known for his eclectic DJ sets, playing in most major countries around the world on a regular basis, and has helped create a circuit for like-minded artist and peers in the field of left-field drum n bass and electronic music.