i need help builing a ported enclosure for 1 12" l7. i was thinking about 3- 3.5 c.f tuned at 30hz.the box cant be any larger than 14 x 14 , but the width can be up to 48".could someone help me design it with the correct port size and maybe a drawing.i only wan't to do this once so i wan't it to be right.thanks
