Stereo Shoppe (I know, I know) in Ann Arbor, long since defunct. B&W 801's, no idea if series I or II. Before that a taster with the large DCM Timeframes.
When was the first time that you heard great sounding speakers?
For me it was 1977 at Purchase Radio in Buffalo NY. My brother and I were putting together a system that we would share at our parents house. The song was Aja by Steely Dan on a pair of Altec 19's that blew my mind at the time, I'll never forget it. They were a little out of our price range at the time. The system ended up being a Sherwood receiver, KLH speakers, a Technics SL-1950 and a cassette deck that I can't remember the make. Great memory!