Bulldogger- how would you compare the CAL to a good tube pre like a BAT or ARC? I've been fantasizing about merging my 2 channel and HT, but would hate to give up the sound of a good tube preamp. Had the opportunity to watch a demo of that unit once. Its was a DVD of an Imax film about Mario Andretti in a good sound room, it was awesome on movie sound. Just wondering about 2 channel.