Adcom GFA 7500 Find Can It Be Ran In Two Channel..

Can the 7500 be ran in two channel with a regular pre hooking it up to the fronts, and the rears individually. Tested separately. I found one in my local thrift, but had no way to test it. They sold it to me for $15 because of the lack of being able to test it. It powers up, but at the moment that's all I have done with it. Any insight would be greatly appreciated.

Thanks.