I've been looking for a receiver to use as a pre/pro. I have 5 channels of Parasound power. I've looked at Yamaha, Sony, and Denon. My criteria includes multi-room with the ability to assign two of the receivers amps as the power for the 2nd room. I thought I would try the Sony 4ES after a 10 year Sony boycott. The salesman at Ultimate Electronics said the 4ES had all the same goodies as the 3ES, plus some. Well, after bringing the beast home and reading the manual nowhere does it state that two of the internal amps can be used to power a second room. The 3ES can do it, why not the 4ES. Sony let me down again, simply amazing. I'm not yet sold on the Denon (not a Denon fan-boy) and none of the Yamahas have the powered multi-room capability except the real expensive RXZ1. Why does Sony take features away on the newer receivers? I now either must go Denon (not a Denon fan-boy) or get the 3ES which has less surround processing. Will I miss the newer surround processors if I only currently have five channels? Any thoughts? BTW, $1000.00us is the limit.