Calling all speaker builders. I downloaded winISD and I am just now learning how to use this program (I think). I want to know if I am missing something here. When I enter all the info needed from the spec sheet on the speaker and go to the box disign section it tells me I need a box volume of 3.87ft. I know I was recomended by DukeLeJeune to use about a 1ft box. Just wanting to know how to calculate a smaller box volume? Also the port size it gives me is crazy. It will say 4" dia and 1/2" length. So I am all confused. I am reading the help section but have not found anything yet. Let me know if I am missing something or need to try a different program.