Lemon D, (real name Kevin King) is a Jungle and drum and bass DJ and producer from Brixton in South London. He set up Valve Recordings in partnership with long-term collaborator Dillinja, with whom he also designed and built the Valve Sound System, purported to be the most bass-heavy system in the world (contrary to rumour, it is not the loudest). It is the only sound system purpose-built for drum and bass. Albums include Big Bad Bass and The Killa-Hertz with Dillinja.