Definitions for "Quadraphonic"
Keywords:  bbc, circa, seventies, defunct, rival
of or relating to quadraphony; "his quadraphonic sound system"
Surround-sound reproduction involving the recording and playback of four channels of sound.
Four channel audio. Various rival quadraphonic audio formats including QS, SQ and CD4 were proposed in the Seventies. Many broadcast companies experimented with four channel FM transmission, the BBC, for example, favoring a format known as Matrix H. No quadraphonic format survived as a viable commercial entity into the digital age. : Symbol for resistance or resistor