Of or for a four-channel sound system in which speakers are positioned at all four corners of the listening space, reproducing signals that are independent of each other.
Designating or of sound reproduction, as on records or tapes or in broadcasting, using four channels to carry and reproduce through separate speakers a blend of sounds from separate sources.
(of a sound system) Employing four independent channels or speakers.
Origin of quadraphonic
- quadri- + phonic