For the $500 range pick up the used REL Q100E for sale on Audiogon for $450. A REL will integrate with anything. The A100E is the Home Theater equivalent to the REL Stratus. Just as musical and more slam for movies (there is a Slam/Depth switch to change the response).
Also consider the Hsu VTF-2.
Also consider the Hsu VTF-2.