If you tap the "Straight" button on the remote, the receiver will be in 2.1 channel mode if you have have a sub, or 2.0 if you don't. "Pure Direct" bypasses YPAO and there will be no sub output. If your source material is 2 channel there will be no up-mixing in Straight. But if you use Dolby Surround, the receiver will up-mix to however many speakers you have connected. I agree with what is stated above, the 2060 has a good power supply so you shouldn't run into clipping issues (of course this is dependent on speaker impedance, room size, and how loud you listen.