How to test a used amp?


I have a used Sony Ta-N80es amp on it's way to me and I was wondering what if any testing I should do to it upon reciept. The seller said he tested it but I am wondering if there are any quick tests I could do to it before i really start using it. I have a multimeter.

Mark
mhedges
I don't know of any tests off hand,but hook it up to speakers that are disposable ,and may have a fuse protecting them first.Even if the seller is honest,who knows what it went through in shipping.The monkey that grabs your baggage in a commercial comes to mind.Don't blow out your prized best speakers!♫
You mentioned a multimeter,checking each speaker output on AC and DC setting sure can't hurt.On a amp that has a slight hum,I get under 1 volt (it needs a new cap).A good amp was giving almost 0 millivolts with no speaker load.A tech may have better ideas.Tube amp people,make sure you have a load resister on.
Both good suggestions, thanks.

Mark
You can also short the inputs, NOT OUTPUTS, and, with speakers connected, that will tell you the ambient noise level of the amp.