I am wondering what integrated amp with av pass through I should get. I have a Marantz sr-9300 receiver but would like to add a separate two channel amp to get top-notch stereo sound (not that the Marantz is any slouch). I know Arcam produces some fine amps. Would they provide an improvement over the Marantz? What about Krell? SimAudio? Any other suggestions? Also, to what extent do the amps in the integrated amp need to sound similar to those in the receiver? For multichannel music and movies, in particular, I imagine the amps need to be similar. Any advice would be gratefully received.