Ok, I have 2 12" Hifonics HF12D4's, and I'm trying to build a box that'll fit into my car. I'm wanting to tune it to 34Hz but can't seem to figure out this whole thing. Box is 36" wide, 14" high, and 14.5" deep. I have the subs in seperate chambers, and 2 slot ports (1 for each chamber). Anyway, here's what I got...
