Hi all. I am in the market for a new receiver. I have narrowed it down to a few choices. They seem to be pretty even in terms of features and specs/ However I am wondering about the difference in sound each manufacturer may have. What I am looking for is warmth, depth and a balanced overall sound... not too treble-y, not too bass-y. Here is what I am considering: Harman Kardon-AVR325 Yamaha-RXV740 Denon-AVR2803 These models stretch my budget to the limit, what do you all think of the next model down for each? Such as the RXV640, AVR230 and AVR1803. Thanks!!!