I have an old, beautiful 2 ch. tube preamp and a Lexicon DC-1. I run my CD player direct into the preamp for no-compromise straight audio. For HT, I run the DVD's digital output into the Lexicon and the Lexicon's L & R analog output into the Aux input on the preamp, same as any other source. To balance the channels, I set the volume on the preamp at exactly noon (pick anything you want) and use the Lexicon's internal noise sequencer. When I switch to HT viewing I put the volume back to that spot, change the input to Aux, and then everything is controlled through the Lexicon. To listen to CD I switch the input to CD and adjust the volume where I want. HT listening is (very) slightly compromised by this setup, but 2 channel is glorious.