We offer a monstrous 18" slot ported subwoofer enclosure designed to handle the biggest baddest subs around. This enclosure is build from 1" MDF all around which means it can handle years of heart stopping bass without having to worry about the box flexing or leaking air later down the road. Our boxes are made from precision cuts of MDF. They are then liquid nailed, nailed and completely sealed. We then wrap them with high quality carpet that matches most vehicle interiors. All Boxes feature high grade spring loaded terminal cup(s) for the absolute best connection possible. We guarantee you will not only see a difference in the quality of the boxes we build, but you will hear the difference and that is what is it is truly all about.