Sample from side two
Popular Science Test Record
To Set Up/Calibrate/Check Out Quadraphonic System
Total Sound PR401 SQ
Popular Science Magazine promotion produced by Enoch Light and Jess Hest. Side one of this record features a variety of "tests". Jumped to side two and listen to the music. All I can say is that all "stereo" records should sound this good! Light's engineering was always superb! The sound is amazing.