box aero ports 15

so can anyone help me design a box for 2 hds215s, i need a box tuned to around 34 hz and 10 cubes before displacement. wanting a big aero port 8 - 10 in. going in a van so it can be big. anything is helpful

I have 3 boxes made for a 15'. They are cut out for a 12'' aero port on the side. I don't use them any more, and i hate seeing them sit in my garage. I will post the dimensions on here when i get home or tommorow. Facebook