Thanks, I will look at PDX also then. You mentioned later versions, I'm unfamiliar with the PDX since I hadn't considered them thus far. How do I determine the later versions? I'm trying to save a few $$ so I'm going to look at used.
In either case, my plan was 4x150w on fronts and under seats. 100w x2ch on biamped center, 100w on rears, 500w (or 300w if PDX) on Sub. What do you think of this power allocation? Better than my existing?