Call 919-355-0010 and ask for a tech. Gerald Walsh is very helpful. Ask what the bias should be set at. Sometimes it differs a little from the manual. Speakers should be hooked up. How hot do they run? I just traded in a Cary V12R amp (they run very hot) that I really enjoyed on a new Cary 120S amp. I still can't beleive how good it sounds. The bias on the V12R was set at 238 and the 120S is set at 150 and has the meters built in so you just need a screwdriver. Be careful not to turn the screws much. 1 or 2 degrees makes a big change, so call Cary to get the right specks. If the amps are good, you're going to love them. Good luck. polk432
