Need a 2 channel amp for rear speakers 7.1

You could by another Theta and biamp your L & R mains and center with one. And the rest with the other. If I am not mistaken you can buy the Thetas with 2 to 5 channels.

I use a Bel Canto S-300 for my surrounds, excellent sounding amp with 150wpc from the size of a dictionary and doesn't get hot. Size allows placement anywhere and performance will be tough to be for the price range.

Perhaps I wasn't clear about my system. When listening to music, I almost always listen to a dedicated 2 channel tube system.

Also the Dreadnaught can with the push of a button become a 2 channel amp.
That's one of the cool things about it. That huge power supply which is capable of handling 5 channels is cruising on 2.

Thanks for all your responses.

Jon

My father has a Lexicon system and added a Rotel for the center back speakers.