What amp for Paradigm Studio 60 v.2?

I recently bought some Paradigm Studio 60 v.2 speakers and just can not believe how good they sound! After my ears adjusted, I realized that my Denon 3802 may not be giving these speakers what they deserve to sound right. Will moving to a 2ch amp for music listening really improve the sound? even if I use the Denon as the pre-amp? I kind of feel like the Studio 60s need more power. Paradigm's site says a max amp of 180 wpc. Does this mean a 200 or 220 watt amp is too large? I mostly listen to jam southern blues rock and some acoustic music. My curretn room size is 26'x15'x9', but these speakers will eventually be moved into a smaller room. I was wondering opinions on the best amp under $1000 used for the Studio 60s? would you also suggest the same amp for the Studio 20s and 40s? I have been looking at the Rotel and B&K amps, but have not had a chance to audition any of them.