Trying to make some plans for my kicker 15 L7, based on opinions from this board Ive decided to do 5 cu ft @40 but Im still open to changing that.. anyways There are no boxes this size in the pre-made plan section and I tried used woofer's.com but can't find the xmax and sub displacement #s for this sub? Anyways if someone knows these numbers or can make plans for this box that would be awesome. I need it to be width of 36", height 18" and then whatever the depth would be then... Thanks