XOL DOG 400 is a German hardcore techno music project, mostly publishing gabber and terrorcore tracks. XOL DOG 400 was founded in 1992 in Berlin as successor of the electronic body music act "Le Nokto Vezyn". In contrast to the short lifetimes typical of early techno projects, XOL DOG 400 has continued its activity through to the present (2008). XOL DOG 400 has published several CDs and vinyl recordings, as well as contributing many tracks on samplers such as the Terrordrome compilations.