Hi im new here and I just got 2 12 W3V3's, and am going to construct a ported box for them. My first q is is there any pros/cons of having 1 chamber and 1 port for them both, or seperate chambers/ separate ports? My second question is what should I tune them to. JL recomends 30 hz, but is this too low? I want a little more DB's, preferably) . And my final question is about sealing. Once the box is put together, how do I seal the inside of the port walls if they are like 1.5 inches wide, even the smallest and girliest of arms couldnt't fit in there to seal it. In case it matters, they are running off a Kicker zx750.1, and the external maximum dimensions are 34 wide x 14 tall x 18-22 deep.