Ive decided on my subs. After deliberating over music priority vs movie priority, I decided on music. Ill put one sub next to each main so there is not much delay effect. I know I wont get the output as much as 2 tumults in one sealed box in the corner, but I am kinda anal when it comes to my HT. OK very anal. I just want to be sure I have the right calculations. From what I get, I can have a 4 cu ft box for each driver and get 16Hz only 4 -4.5 db's down. not bad. Am I doing this right?