Martin Damm has been releasing records since 1990 under various project names, the most recurrent ones being Biochip C., Speedfreak, and Search & Destroy. Starting off making German-style EBM techno, he soon became part of the Cologne school around Walker, and released on labels such as Monotone, Force Inc., and Dj.ungle Fever. After his increased popularity, especially with the Dutch gabber scene in 1994 and 1995, Mokum and Shockwave became his home labels.