I have a 12" sony xplod xs-l122p5 sub that I want to build a limited space enclosure for. I can't find any of the t/s parameters in the duamax definition to flug into websites I've found that will calculate the ideal set up for this speaker. I measued the old box that it was in ( with another 12" ported in middle), it equaled 1.55 cubic feet. My space limitations are no larger than 14" tall x no wider than 10-12" deep x rather unlimited width.