Quadraphonic sound was a commercial failure when first introduced due to a variety of technical issues and format incompatibilities. Four channel audio formats can be more expensive to produce than standard two-channel stereo. Playback requires additional speakers and amplifier channels.

What happened quadraphonic stereo?

The early-stage surround sound technology quietly died in the late 1970s, and was ultimately supplanted by innumerable other spatial audio technologies. In its heyday, it was used by the likes of Pink Floyd and The Who. Quadraphonic sound was all about 4-speaker surround sound (technically 4.0 surround sound).

What is the difference between stereo and quadraphonic?

As adjectives the difference between stereophonic and quadraphonic. is that stereophonic is of or pertaining to sound reproduction using two channels to give a more natural two-dimensional sound distribution while quadraphonic is (of a sound system) employing four independent channels or speakers.