Okay here is my situation. I have dual 16-46CS pluses. I had them separated in the 2 front corners of my room. In this setup, I had wonderfully smooth bass and very non localizable. It was as the subs almost imaged between the speakers. The problem was that the output was not what I wanted and the woofers strained a good bit at higher levels. To solve this I moved both to the left corner. This semi-solved my problem. I did gain about 2-3db more output but still not enough. The woofers still strain a good bit. I also have a more localizable sound now. I would love to purchase 2 more subs and put them in the other corner but I cannot. I am thinking of purchasing just one more 16-46 now as my wallet can handle that. I am wondering what the effects will be using one in the right corner and two in the left corner? Anyone out there have this type of setup? How much more output will I get? How would I balance the subs' output levels so one is not working alot harder than the other? I am hoping that the increased headroom I get by adding the additional sub will help overall but I am concerned about the balance. Any help will be appreciated. PS: I have a BFD on the subs and run a fairly flat house curve. About 7-8db 20-80hz.