The popular history of quadraphonics (4-channel sound from LP records, tapes, and radio broadcasts) chronicles a spectacular failure. The major record labels, led by CBS/Columbia and JVC/RCA, invested millions in ill-fated schemes to convince music lovers to ditch 2-channel stereo for 4-channel surround sound. The concept was killed, so the story goes, by competing and incompatible LP formats, high prices on the better-sounding discrete-channel reel tapes, and a collective shrug by the buying public.
That story is mostly true, though the format thrived for a while in Japan and Germany, and it never fully died. Now, modern tech has made possible rereleases of 1970s quad albums on relatively common formats: multichannel SACD and Blu-ray discs (BD). No more "meh" LP formats, no more fussy 1970s-tech decoders.
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