this is my first box build and i'm going ported. i need all the help i can get. i'm using an audiopipe txx be15 that will be powered by an audiopipe apsm1500. just got them both delivered this week. i'm not impressed with the box "design" that came with the sub manual, so i'm turning to all of you that can/will assist me. thank you for any help... believe me, it will be appreciated! dying to cut into this sheet of mdf, lol.