Ah sorry...my bad. I am going to totally seperate the HT and stereo stuff. So I want to keep the Yamaha as part of the HT, and get something else for pure stereo.
I do have a sub...Athena AS P400...which I think will work well enough with the Maggies. Actually I very seldom find it's needed...just on material that's not well recorded.
I did think about using the Yamaha as a pre amp and getting a seperate power amp...but then I'd have to replace it in HT anyway. Plus...I THINK on the Yammie, it doen't output to the sub without the processor in line. Its really amazing how the imaging degrades when it's not running direct stereo mode.