Well, I just bought the Anthem MCA30 and it's a big difference - very happy with it. The only nitpicky thought is that.. OMG - This thing is huge and really, really heavy. I have it sitting on the ground for now until I get a new rack.
As for the sound - the speakers seem to be doing everything effortlessly now - not as bright, more stable at higher volumes, more bass. I'm pretty new at this, so I don't know the proper terminology.
The amp itself is silent when it runs.
I don't really know what else I can say....
haha.. actually, that's just an excuse. I wanna go back and listen to more music.
Thanks for the help everyone. When the receiver gets upgraded I'll report again!
Oh...does it matter how good the RCA cables are? I don't even know what kind of cables I'm using.