I run identical dedicated 250w subs for each front speaker as well as identical 150w subs for each surround. All four subs are in line with the speakers. My processor is setup as "large L/R, SL, SR & sub=no". My center is set to "small" since I would NEVER use dedicated sub for a center(yeh I'm gulty of trying it though:b). This setup works great for me and gives my surrounds a MUCH fuller sound. Also if I ever went with SACD or DVD-A, I'd technically have full range speakers all around with the exception of the center. Do any of you guys use a setup like this?