Take a look here for discounted B stock or refurbished 2 channel receivers. This Yamaha R-S500 is in your budget-

YAMAHA R-S500 Natural Sound Stereo Receiver | Accessories4less

as does this Onkyo-

Onkyo TX-8050 2-Channel Network Stereo Receiver | Accessories4less

Either one would be great and would be better than going with a multi channel receiver.