I am considering either purchasing the ROTEL RB-1070 2-ch or ROTEL RMB-1075 5-ch amp. I noticed that generally speaking the 2-ch specs are better than the 5-ch. My question is whether when listening to 2-ch stereo will it make much of a difference? Here are some examples of the spec differences.... Damping factor - 1070 = 500, 1075 = 180 S/N Ration - 1070 = 120db, 1075 = 115db Power - 1070 = 2x130w (8 ohms), 1075 = 5x120w (8 ohms) Other than getting additional channels from the 1075, what do you think? Monkey any opinions?