Amps/AVproc/pre forRevel Ultima Salon 2 5.1 system

Hi! I have just purchased a Revel Ultima Salon2, voice2 and Gem 2 5.1 system w/ 2 JL audio subs. The S2' and center run at 500w continuous and much higher peaks. The rears run at 250w.

Can anyone suggest a decent amp/pre/processor combo other than Levinson, Krell etc that can afford-ably handle the requirementsand quality?

I am brand new to this and don't want to be naive.
Thanks for any assistance
T