If possible try the Parasound P5. I had one and for the money it just may do the trick.
Is Rotel RMB-1075 a good match for B&W N804
I have a B&W N804 driven by RMB-1075 primarily being used for HT. I listen to music on my headphones, only just recently have started to listen to music on the 804's. There seems to be little bass & midrange , not sure if it is the rotel, I've even bi-amped but found just a little improvement in the bass & midrange.