Well I don't have the experience of these other guys, but I'm in your same boat (except without the sub). Most audiophiles it seems will push the 2 channel system above all else, and I'm sort of leaning that way. A great point someone on here made to me was that you are not as picky with the sound in your home theater because you are also watching the screen, whereas for audio that's all you've got.
So I'm thinking (for me) get a separate amp/pre or integrated and bypass my receiver for music, and then passthru the same integrated for 2 channel during movies (powering center and rears through receiver). The other option I am considering is a 3 channel amp, which adds the difference that the center will get good power, even if the receiver's pre-amplification for the center isn't ideal.
Hope this helps somehow. Good luck.
So I'm thinking (for me) get a separate amp/pre or integrated and bypass my receiver for music, and then passthru the same integrated for 2 channel during movies (powering center and rears through receiver). The other option I am considering is a 3 channel amp, which adds the difference that the center will get good power, even if the receiver's pre-amplification for the center isn't ideal.
Hope this helps somehow. Good luck.