Many of the so called "quiet" quadraphonic albums are QS encoded but completely unmarked as to being quad/encoded (the Tommy movie soundtrack from ~1975 is probably the most famous example).
Are there any quiet quad albums that were revealed [magazine article, for example] to be SQ encoded (but are completely unmarked)?
Kirk Bayne
Are there any quiet quad albums that were revealed [magazine article, for example] to be SQ encoded (but are completely unmarked)?
Kirk Bayne