I have just scored this Power Amp off of Kijiji and for free. I hooked it up to my book shelf Acoustic Profiles with a equalizer and played off of the web and dame so clear and powerful, then I took my Cerwin Vega E710s and hooked them to this baby and wow I cant believe the quality of sound I own two Brand new receivers and they don't even compare to this amp that was made in the 80s well got to say that if you have a chance to buy this amp do it even if it needs repair it would be worth it for the clarity in it