It won't affect the unit negatively if that is what you are worried about. However, if you want just a great 2-channel performer, you might want to check this out:
http://www.outlawaudio.com/products/rr2150.html
It is what I would buy for a 2-channel rig.
You would also get more responses if you put this in the (Amps, PrePros, & Receivers) forum.