Would 100 wpc at 8 ohms and more at 4 ohms be enough for "background" listening. My room that the Nuprime was used in was over 6500 cubic feet and I stretched it out. It would have done "background" listening at a quarter volume.
Downsizing, I want a smaller system in term of size not quality. My Karan pre-amp has a separated power supply (same size of the pre) and my amp is of the size of the diablo 300.