Well, I am considering an upgrade and would like some assistance in evaluating a couple of alternatives. My current setup is 5.1 - Def Tech BP2002 front left & right, a CLR2002 center, BP1X rear left & right, and a 20-39PC sub. Option 1 (6.1 system) is BP2000TLs (new) for front l/r, CLR2000 (new) for front center, move BP2002 to rear l/r, move CLR2002 to rear center. Option 2 (7.1 system) is BP2000TLs (new) for front l/r, CLR2000 (new, trade-in CLR2002) for front center, move BP2002 to rear l/r, move BP1X to rear surround l/r. What are your opinions in regard to the rear setup? I am interested in the B&K Ref 30 which shows the 7.1 setup in its manual. I don't know yet if they support a 6.1 setup as I skimmed the manual and only the 7.1 setup was diagrammed. Has anyone tried/demo'd both types of surround, and which did you prefer? Additionally, what are thought regarding having powered subs at most locations. I could use a CLR3000 and thus have powered subs for front l/r, center, and rear l/r. In the other direction I could use BP30s for front l/r and only send the LFE channel to the SVS. The BP2002s in the rear would still be full range, they just wouldn't get the LFE signal. Thanks for any assistance!