Amp selection for someone on a modest budget...

I own and enjoy a Wyred 4 sound power amp, 2 ch, 250wpc.  They also make multichannel amps 5 and 7 Channel.  As a bonus they are considerably below your budget and on sale right now at about a 20% discount.  

In line with jl35 and his odyssey suggestion, w4s offers upgrades for almost all of its equipment.  They also offer 30 day trial so not much to lose by trying.  

if you are willing to consider tubes, for the $$ and within your budget, IMO the Rogue M-180 mono blocks are superb. FWIW I drove my Revel Studio II's with a pair to sonic perfection.

tesi Amp selection for someone on a modest budget

I’m looking to add a power amp next. Revel Performa3 F208 speakers

Best bang for buck at the moment is a single Schiit Vidar @ $699, and should drive those Revels nicely. Maybe later get the Freya pre as well.
http://www.schiit.com/products/vidar

Stereophile test on the Revel F208:
" The impedance ranges between 4 and 7 ohms for most of the audioband, though there are dips to 3.6 ohms at 100Hz and 3.2 or 3.7 ohms at 2.9kHz, depending on whether the HF control switch is set to its maximum or minimum, respectively. The phase angle is generally low, or high only when the impedance is also high, ameliorating its effect. However, the combination of 5 ohms and –50° at 25Hz means that the F208 will need to be driven by a good 4 ohm-rated amplifier."

https://www.stereophile.com/images/714R208fig1.jpg

Cheers George

George:
Thanks for the suggestion on the Schiit equipment, I'll take a look at it. The Stereophile article information is also very helpful! Much appreciated...

There's a McCormack DNA500 and Clayton M100 monoblocks for sale here now that would be worth a look.  If one becomes available maybe a Plinius SA103.  What amp are you using currently?  Best of luck.