GX Jupitter-Larsen (born 1959 in Denver, Colorado) is a musicien and a sound designer who has been active in a number of underground art scenes since the late 1970s. He has been involved in punk rock, mail art, cassette culture, the noise music scene, and zine culture. His best known work is as the founder of the American radical noise noise act The Haters. During the 1990s he was the sound designer for the performances of
Mark Pauline's Survival Research Laboratories.