Nick, I have found the addition of two 500s to the existing 800 gave me more than spatially smooth bass. It unmasked bass details and three dimensionality that either did not exist or was only hinted at with the 800.
That is what I said. With a single sub, regardless of the size, you will end up with peaks and nulls. More subs evens out the effect across more room nodes. More subs and smoother response across more area will end up giving greater detail than a single sub.
So what you and I are describing are the same even if described differently. The overall statement here is that more subs = better sound across more seats.
