i would also invest in a set of sound anchor stands for the 803's. i have had these speakers and getting them up helps open the midrange as well as improving the bass. the speakers at a higher height will improve the soundstaging. this is the first thing i would do so you would get a better understanding of how your equipment sounds. moving the center channel down is also a great improvement as well. solid state amps work better with b&w speakers.
bill

