I have RF-7 fronts and RF-5 rears, and am upgrading from a denon 2805 to an anthem avm 30 pre-pro and a krell kav-2250 for my fronts, undecided on what amp I will get for center and rears. I would not recommend the 2805 with klipsch reference speakers. unfortunately most of my recommendations are well outside your price range, but wanted you to be aware of what i have experienced after numerous home demos over the past year with my speakers. while klipsch speakers are known for their efficiency, the more quality power i have provided them the better they have sounded, at any volume. I demoed a rotel stereo pre-pro, rotel's top cd player and a rotel 1080 amp, and with the klipsch horns it was far too bright. cary cinema 6 pre-pro and cinema 5 amp sounded fantastic for music, but I thought the cary pre-pro features were not as good as the anthem avm 20 pre-pro, and the avm-20 sounded better than the cary in virtually any DSP mode for music. krell amps are a good match with klipsch, as is B&K for the price, but the krell was worth the increased cost at least to me. i also demoed a b&k stereo pre-amp and b&k 125.2 amp, which sounded good but not as good as the avm 20 & the krell amp.
i have heard several in store demos of the yamaha 2600 w/ RF-7's and could not really distinquish the sound from the denon 2805, but the listening sessions were fairly short. also recently heard the 1500 msrp pioneer receiver w/ a pair of vienna accoustics bach speakers which sounded incredible, but the store didn't carry klipsch so couldn't compare.
the least bright sound i have heard was either the cary audio gear or the avm 20 & the krell, both of which produced great music with the RF-7 in a direct analog mode, but the avm 20 was better for cable tv & any DSP mode for music.