I don't really remember much how it sounded, but a system that put a major impression on me was a studio that was located not too far from where I live now. It used to be GM Studios, in what was formerly known as East Detroit. I believe it was on 9 Mile Rd., and was adjacent to a body shop. (The studio even had its own little record label called Bumpshop Records.) My cousin was still working there at the time, and he took me, my parents and my mother's cousin on a tour of the studio. Not just a tour, but he showed us how a single was made. Saw the wide tape, the mixing desk, even a cutting lathe (and I still have that lacquer he cut). This was 1972, and they were predicting that this song would be a million seller. (This was Gallery's hit single "Nice To Be With You.") After he moved away a year or two later for the south (Muscle Shoals, then Hialeah FL, before finally settling in Nashville), he would occasionally send me a few pro audio magazines. I never did go into engineering as I'd hoped, though.