I attached a pdf of my layout that I sent to Dr. Hsu. He recommended a vtf3.5 in the corner near the tv. After doing a the subcrawl, I identified the corner to the left on the couch (in the pic) as a good place for the sub. I have since moved the SC4000 there and am now left deciding between several HSU subs, the vtf 3.5, 15H, or even the ULS-15. The sealed option looks very appealing to me. I always liked sealed subs in my cars, but that may have been because of the cabin gain. With either of the VTF's I could experiment with those options and see which I like.