Mark Ernestus is a Berlin-based producer and label founder born in 1963. In 1989 he opened Hard Wax, an influential record store that became central to the city's electronic music scene. Working primarily with collaborator Moritz von Oswald, Ernestus produced seminal work under the Basic Channel and Rhythm & Sound projects throughout the 1990s and 2000s, helping pioneer dub techno and minimal techno. Since 2011 his focus has shifted toward West African mbalax music, founding the Ndagga label and touring internationally with the live ensemble Ndagga Rhythm Force. His output across three decades has spanned electronic club production, dub reggae collaboration, and world music documentation.