@loomisjohnson -- shame on you man. Your AVR’s preamp section sounded good COMPARED TO WHAT? It’s a $3400 AVR that includes multichannel amp, signal processing, tuner, preamp, DAC, internet connectivity, etc. etc. With all that, how much money do you think they have to dedicate to the stereo preamp section? Think they put some high-level quality parts in there do ya? I think not. And how well shielded do you think the stereo pre is from the rest of the electronic morass going on all around it? No, IT’S CRAP. At this price it can’t be anything BUT crap, especially relative to any half-decent stereo pre or integrated. And to me, letting the OP think the pre section of his AVR’s is anything more than CRAP is doing him a great disservice. You gonna tell me putting in a better 5-channel amp is gonna do anything close to improving his stereo performance compared to putting in a good integrated amp instead? PHOOEY! But I bet those rear surrounds are really gonna sing with all that high-quality, expensive power from the 5-channel amp. What a waste. The Rotel is more than fine for that. Comes down to that -- you want to feed those surrounds with lots of expensive power, or would you rather get a huge boost in stereo performance by feeding the C20s with both a high quality amplifier AND preamp? To each his own, but I choose the latter 7days a week and twice on Sunday.
@danimaz -- hey man, sorry if I’m coming off like a jerk, but I’m (and a few others here) sincerely trying to help you here rather than just telling you what you want to hear. Sometimes the better thing to do isn’t the easiest or most obvious thing. I guarantee you if you slip a decent integrated amp into your system you won’t believe what comes out of your Dyn C20s. They’re great little speakers and will reward you hugely the better the electronics with which you feed them. Maybe you can borrow or demo one just to see what you could potentially have? Once you hear it, you’ll know.
So you guys keep feeding the guy 5-channel amps he can blow his money on. I firmly stand by my recommendation as someone who was in the exact same position as the OP many years back. If he had mediocre L/R speakers I wouldn’t care so much, but his speakers are capable of providing so much more I think it’s sad to choke them off with the pre section of a mass market AVR. Peace out.