Ultraphon

Ultraphon is both the name of a historic device to play recordings and a record label of the late 1920s.

== Device == The inventor Heinrich J. Küchenmeister (1893–1966) from Berlin developed the Ultraphon in the early 1920s as a device to play records. In a round housing, it had with two sound boxes, two tone arms and two speakers at a right angle. As both needles ran at a fixed distance in the same groove, the effect was a gain in volume and a pseudo-stereo.