Hi all, I currently have a NAD T 742, rated at 5 x 50W. I want to buy some Paradigm 60's, for mains, which I don't think it can run. So I need more power in my system. I can either upgrade to a bigger receiver, such as a NAD 773, 7 X 110W, or add a poweramp like the NAD 272, 2 X 150W, to power the front speakers and use the NAD 742 to power my other channels. What I'd like advice on is whether using the 742 / 272 combo is going to produce sound which is as good as the 773 alone. I'm concerned that the pre-amps on the 742 might weaken the sound. Also, does anyone know if is possible to bi-amp the 773? If so, that would seem to be clearly the better choice.