I am going to buy a sub. The room size is about 14x20 with 8' ceiling. But their is also a lagre opening into another room that is about 14x14. I like the idea of the cylinder over the box, like being differnet. But I wont trade performance just to get the tube. So that said anyone have any comparison of these 2? The PB12 has a bigger amp and twin drivers, but does that mean that it is any better? Also have considered twin Rocket UFW-10's, but haven't heard much about them and want to get it right the first time. Oh and this is mainly for home theator. I am looking for tight quick bass so you can feel thoose sound effects.