I have recently upgraded to THX/7.1 and currently have all Wharfedale setup 2xDiamond 7.1(70w), rear & side 4 bipoles (70w) but my Center is only 30W from my previous system. I have not connected my system yet, and I would like to know if I should upgrade my center speaker? (I also have 8" Eltax sub) 1) Can I stick with my center and allow the Pioneer Autosetup (MACC) to take care of it? 2)Upgrade my center to Wharfedales only (I have read a lot about tonal balance?!!!) 3)Buy any other matching center - pls recommend I will use the system for movies & TV mainly at low volumes - Thanks.