Went to a Bose dealer 1978 or so advertised special one night show. It was in Tempe, AZ. Huge Macintosh mono blocks and preamp. A Revox B77 (?) rtr for source playing a master tape at 15 ips. It sounded awesome, but not enough for me to give up my ESS Heil AMT4s. Only song I remember was RS Sympathy for the Devil. Never owned a pair of Bose speakers. One of my 10-inch woofers blew out, went down to the local speaker recone shop. He took one look at the very cheap ESS woof and brought out a pair of Bose 10's. Price was right, they were a lot better than the OEMs and were good for another 15 years. Rankaudio Magnepans are very picky about their location in the room-4 to 5 feet from back wall, 3 feet from side walls. Imagining has always been very good.