Those wonderful folks who gave you stereo are at it again. Now they want to put four speakers and new amplifying equipment in your living room and introduce a new term into the vocabulary of the sound buff—quadraphonics, or four-channel sound.
Quadraphonics have been available on tape since 1969. But for home hi-fi sets, the mass consumer market has continued to prefer stereo disks to tape by sales ratios of more than 5 to 1. Mindful of that fact, Columbia last November came out with the first four-channel record, calling it SQ (for Stereo-Quadraphonic). The new SQs cost a dollar more than...
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