Currently I have a fairly nice Yamaha rx-v3000 receiver. My speakers are moderately prices Polk Audio speakers (except for the monster CS1000p top of the line center speaker).

Right now, I think it sounds quite good, but I'm curious about just how much the sound would improve if I were to user my Yamaha as a preamp and hook up an Outlaw770 power amp.

Will I really get dramatically better sound with all that power? In total I spent about $2000 for all my speakers. Is it a waste to get such a powerful amp if my speakers are not "audiophile" grade?

I'd really appreciated any comments you may have.