I want to build 2 slotted boxes for 2 8's. In the center is a L5. Is there anywhere that shows how to make it or to give me an idea. The tallest it can be is 14 in. and 10 in. wide. The depth doesnt really matter. I want lower bass. They are kicker comp vr's 400 watt each and i will be pushing them with a 800 watt pioneer amp i just got. Thanks erik