Exactly; I was toying with doing two or three EP 500's or an EP 500 and one more of either the 600 or 800. My thinking is that even though the 500's don't go as low, they will round out the space better and do a better job of filling the voids, even if the response isn't down to 12 hz. Not sure how much I need that super low energy vs. having a very full slightly higher range of bass response. I guess I shall see. It's why I wanted to start with one 500 and see how it interacts with the Model T's which by themselves have a lot of dynamic power.