I bought a Denon AVR-1905 receiver to match to Ascend CBM-170 bookshelves a few months back. I love the sound they give for movies, but my love is listening to music in 2.1. So......here's my problem. I find that something about this combination leaves me wishing my speakers had more midbass and midrange presence. The combination is very accurate, but kind of has a hollow sound. I know that denon's aren't the warmest of receivers, and that the Ascend bookshelves are VERY neutral or even a bit on the bright side to some. Is this combination doomed to lack warmth? Would it be a better idea to change speakers or my AVR? Also, for the ascend guys, would switching to the 340's for mains give me more of what I want? I'm pretty aggravated, since I'm a college student I don't have the money to just go switch out everything. Let me hear your ideas. Thanks guys. Also, feel free to suggest some warmer sounding bookshelves or receivers.