All I have left is the 300 B amps. They're the best I've heard except for true Western Electric gear. At 72 it was time to start downsizing. That was a 21'x21' room, the speakers are 7'x32"x34". They live in New Mexico now. That system won Best of Show' at the Capital Audio Fest in Rockville Md. PMing a video."Used" as in past tense? You don't have that gorgeous system any more?