I'm using and Adcom 750 for 2 channel. It has a processor loop with unity gain which makes it easy to integrate with home theater processor. It may be a little complicated if you have small children or wife that doesn't like having to turn on an additional component. I love the Adcom 750...very clean sound, active or passive mode and absolutley dead quit, no hiss, and no popping when changing sources or activating switches.