Well I got it unboxed and set up. After just a few attempts, I think I got it the way I like it, but I may mess around more later to see if it can be even better. As you can see in the pictures, I'm coming from a little Onkyo HTIB sub, so straight out of the box the 15h sounded better. My wife has already rolled her eyes multiple times and reminded me that it can be heard out side as well, so not to play it too loud. So far I've gone through my favorite parts of Tron and Transformers, and then checked out the noted times of War of the Worlds and Master and Commander from the Master list of bass thread. Good times!
Please excuse the poor picture quality and the visible cords and stuff everywhere. This is a temporary theater until I can finish our basement for a dedicated room.
View of the area from the back wall riser
From above to show depth difference between new and old