Hello, I came across this site while searching for info on my OLD audio equipment. It has set idle for the last 20 plus years. I wanted to hear what I had been missing. I had 4 low freq. drivers re-foamed,and cleaned all the rotary controls with Deoxit. Went to several stores asking for a rack mount cabinet and you thought I was talking a different language! I found a couple old RCA stereo cabinets in Canfield but had to buy both. I fitted them with rack rails from Hank at "Get Off My Case" in Ellwood City, and started to resurrect the old stuff. I got a Carver tuner and cd player from VHF. It was a neat experience....good people! When all hooked up my M400 cube had issues,took it to the store to get repaired and left with a Hafler 500 to try! It sounds very good,I'll probably buy it. Crown D150a x 2,Crown IC150a ,Crown OCa,JBL L300 Summit,JBL L65,Carver M400(with issues),Carver TX 11b tuner,Carver PSD 36b cd player,DBX 1BX,and soon to be mine Hafler DH 500