Single sub back of a 06 Jetta need box designs. I am struggling and overwhelmed! SPL based low end is what I am shooting for I have about 33x33x14.5. If I have to do cutting I will to squeeze that massive cutout diameter for it. Sealed, slot ported, aero ported, cubes, I am lost with this box lol. BC3500 @ 1-ohm. Help me out guys. suggest people too I will pay!