i need help on a design. i have 2 soundspliter 18's and want the port firing to the hatch of my tahoe and the subs upward. i tried to design one but the only one that i can design is subs firing towards the hatch and port to the hatch. i tried flipping the diminsions but 47 inches is to high,lol so i need a design bad. i would like 12 cubes and between 30hz - 32 hz. if somebody can hook me up that would be good plus a cut out sheet. hope to get some hits
