What would that conclude? Rw-12 already sounds amazing. I have no doubt that XV15 would sound even better. The main dilemma is that what is so different in this room that makes it sound so well as compared to theater room. Braveheart and others pointed out that I'm getting reinforcement from the rear wall and that I'm sitting at the peak point. Even if I move away from that point (5 feet front and 5 feet side), it sounds great. Even if I pass the breakfast area in another room and go to kitchen, I can still hear low bass there. I very highly doubt if my theater room can give that graph with two subs. I took a lot of readings in different way and never had that kind of graph. Yes it will produce certain frequencies higher but that's where the meat is. The graph in beteew 20-80 as one dip of 8db and even then it reads at 72 db. the rest is producing great bass. I still have to play some dvds to see how they sound here to compare with theater room.