Musician, sound engineer, producer, music publisher and studio owner. He became well known as producer of Scorpions who were signed to him between 1975 and 1988. Before that time he had already successfully established Hamburg-based band Atlantis in the US. Between 1969 and 1975 numerous albums of the "Krautrock" era were produced at Dierks Studio. From 1975 onwards more and more international artists started booking his state-of-the art sound and TV studios.