I got back into town late last night, and my wife helped me carry the new EP800 downstairs, then bring the old one up. I forgot how heavy these things are! I just had time to hook it up and listen for about 10 mins or so, and everything seemed good so far. I'll have some time to listen to it a bit this weekend, and I'll tell you all how it goes.
I did notice that after 10 mins of playing last night, the back plate did not get hot at all (it was actually barely warm).