trying to design a box for 4 12" audiobahn AWC12T. Using WinISD i am trying to get the gain as level as possible(within -3db to 0db) and get as low(Hz) as possible. What i have right now puts the gain at 21.3Hz -3db, peaks at 50Hz at .92db then gradually levels off to about 0db. this puts the box at 19.388cubes tuned to 23.1. So let the comments rain in.