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.
bandilaj
The Oppo has its own volume control. Try plugging it directly into the amp so that you bypass the Yamaha. You should hear a very big difference.
Home theatre receivers, in general, tend to perform very poorly as preamps. The Yamaha would definitely be a major problem for sure.