I have a Denon 3805 hooked to PSB Image 6t's for the mains and an PSB 9c for the center. I'm thinking of adding 3 of these amps for the fronts and the center. I"ll let the denon power the PSB Image 4t's (rears) and the 10s's (side surrounds). I'm curious if this investment will improve the sound to make it worth it. What kind of improvements can I expect.