Czech group from Prague, one of the first industrial bands in former Czechoslovakia.

Formed in around 1987 by members of Veselí Filištínové and Brusičova Parta. Later transformed to experimental death metal group M.A.C. OF MAD (Maximum allowable concentration of mad).

Members: Petr Trpák, Jan Duspěva, Irena Kraftová (Trpáková), Elen Řádová, Zdeněk Buchal, Mojmír Pukl, Michal Brabec, Miloš Filař (drums), Marek Schnierer (vocals)