I am buildng a box right now for 2 12's. Subs up and centered in the box and port back in the middle of the box. This is going in a SUV with about 8000 watts rms. But before I finish the box I am wondering about the port. The box is a 2 chamber design but instead of running 2 separate ports has anyone combined the ports say half way. So essentially you have two ports but when looking at the box it looks like one unless you look into the port and then you can see the 2 separated ports inside the box. Hope that makes sense. What I am trying to do is gain the control of a 2 chamber box so I do not have to worry about cancellation and backwave control but have some of the benefits of a single chamber single port box. How would I tune a box like this? Does it work? The vehicle is used for daily groundpounding, competing and just listening to musically. I know I am asking for the perfect box, but I just looking for input on something like this.