hello everybody peeps. this is my first post and hopefully not my last(the doctor was a bit sheepish this morning ) i have a b&w set up 602 s2 floors at h the front,601 s2 at the rear,and a b&w series one at the front being driven by a yammy dsp620.i think. now the speech and centre isnt too clear any idea why would be great help. i was considerin swappin mi centre for an s2. i am fairly new to home cinema so there probably is a fair amount of ignorance thanks fer listnin mick.