Dr. Hans-Werner Steinhausen

Dr Hans-Werner Steinhausen joined Deutsche Grammophon in 1950 as Technical Director. It was he (with acoustician Heinrich Keilholz) who defined the very strict rules governing record production. For example, one side of a 33 rpm record was never allowed to exceed 28 minutes – this was the only way to ensure that the grooves were sufficiently wide to allow reproduction of a broad dynamic range.