How about adding a good 2-channel amp to the pre-outs on your receiver? i added a B&K stereo amp to the pre-outs on my Denon receiver and the difference in sound was pretty much night & day. i have the Studio 80's and they REALLY opened up after adding the B&K (ST2140). Plus I still have surround capabilities.
good luck!
-chris
good luck!
-chris