Dillinja, (born Karl Francis, 1974, Clapham, South London, United Kingdom) is a Drum & Bass DJ, record producer and entrepreneur. Arguably the most prolific producer within the Drum & Bass scene (with over 500 releases produced since 1991), Francis subsequently set up Valve Recordings in partnership with long-term collaborator Lemon D, with whom he also designed and built the Valve Sound System. As well as the record label and sound system, Francis and King have also opened a specialist mastering and vinyl cutting studio, Ear2ground.