I finally got my speaks, amp, and bazooka tube installed yesterday. But I'm a bit dissapointed with the bazooka, it doesn't produce the tight punchy bass that I want. I'm thinking two 8's or two 10's in a sealed box will do it ... and when I replace the bazooka tube I will have 100w to run two subs. What should I get? BTW, the amp is a 6 channel a/d/s ph15.2