i need a box for my subs and i dont know what to get. I either need a box that will hold 2 12 inch subs, or a box that holds 1 12 inch sub. i dont want the box to be huge either. i am getting 2 12inch comp vr's or 1 12inch comp vr. my back seat is tilted so i might need a box that is slanted on the back. what subs box to do reccemend for these comp vrs????