From 1986 development and production of the danholt boomerang drive and market launch in 1987. 

The boomerang is a turntable for analogue records. The discovery of geometric resonance optimisation as a design and construction principle in this context was to find further application in the future. In a 1988 test, the magazine confirmed the outstanding metrological values due to the geometry.

The concept of the danholt Boomerang and a number of details of its still unique and innovative design have been copied several times by other manufacturers in the years since.