I'm building a ported box for 2 sa8v3. In a single cab gmc. I currently have a custom box for 1 sa8 ported that I don't like. The back of the box will be fiberglass. Is it possible to do slot port? Or would an aero port be better ? Should they be in their own chambers? I want them to be tuned at 34-35hz. The bottom depth is 9 inches. Top depth is 7inches. Didn't get the total width of the box. But here's a picture. This is one is sealed for 2 12s. We also made this box, mine will be the exact same but 2 8s ported instead of 12s