Given that you didn't like the sound of the subs in the corners, PB-4000s would probably have been better for you anyway. The PC-2000's advantage is that they can be more evenly distributed around the room which might have made for a flatter response, but I think you prefer the sound of the subs in near-field. This probably gives them a bit more mid-bass at the expense of deep bass, so the subs might seem punchier instead of rumblier in your current position.