
Dopplereffekt are a Detroit Techno group which is thought to be composed of Gerald Donald, Kim Karli, Rudolf Ellis Klorzeiger and William Scott. However, they have never given an interview and very rarely perform
live, with the members hiding behind German pseudonyms. They have released albums on the Dataphysix, International DeeJay Gigolo Records and Rephlex labels
Their sound is very personal to
them, the only influence being
Kraftwerk, being very eclectic with song titles and lyrics that draw upon science, sex and politics. Together with Drexciya (which shares Gerald Donald) they were highly influentual in the electro scene. The members of
Dopplereffekt are thought to be the same as
Der Zyklus, each different pseudonym allowing a slightly different style of techno to be released.