i imagine this has been asked before but i need help finding out what my box is tuned to. i tried a couple programs i found on the internet but just got confused. could someone figure it out for me or does anyone know a good program? i have a 15" eclipse ti in a box with inside dim. of 28" wide x 16.5" deep x 16.5" tall and the inside port dim. are 15" tall x 3" wide x 18" deep.