This is my first post here, so I would like to start by saying hello to everybody. Hello. Now to the topic at hand...the two receivers that I am most interested in (and are in my price range of $400-500) are the Denon 1803 and the Harman 320. The Denon has 80 watts/channel vs. the Harman's 55, but considering that my speakers have a relatively high sensitivity this should not be too much of an issue. Personally, I prefer the looks of the Harman and like that it has actual bass, treble, and balance knobs. Additionally, the Harman gives me more choices on the low frequency cutoff to the mains....the Denon allows 80 or 100 Hz whereas the Harman gives me 40, 60, 80, and 100 Hz. I would be most likely to use the 80 Hz setting anyway but I think I might also like to experiment with the 60 Hz setting considering that the AR15 speakers go down to 39 Hz. Which receiver should I go with? The Harman will end up costing $80 more but it seems to be worth it. BTW, the speakers I will be using on this are Acoustic Research AR15s and an Acoustic Research PR1212 sub. I will probably upgrade the system to include two more AR15s for the rear and an AR2C for the center channel.