When it comes to Cd music played on HT 5.1, 6.1 etc--- how do most of you do this? I will assume you have your mains and 2 rear and a center channel spkr and a sub. Do you use DSP? Since the Cd medium is mostly 2 channel stereo, what content will the rear speakers play, either with or without DSP? What are your results and opinions and how do you set-up your system...any advice on this? Thanks, Jack