So I've asked in another thread. I have the QS4's and have been thinking about moving up to the 8's. Room is about 22 x 30 with half of it being used for HT, the other for a pool table. The 4's sound good but would it be worth movingup to the 8's? Right now the 4's are mounted to a wall 4 feet back from the listening area about 6 .5 feet up. Would I notice a major change by going to the 8's?