Recording together as Hardfloor since 1991
Oliver Bondzio and Ramon Zenker have written German techno history. Their first EP for Sven Väth's fledgling
Harthouse label, '
Hardtrance Acperience' pioneered their trademark simultaneous use of multiple Roland TB-303 synthesizers and became so successful it even entered the UK charts. Their remix of Robert Armani's '
Circus Bells' became another landmark hit, and many successful albums and singles followed over the course of two productive decades.