I just thought I'd post some pic of the work Ive got done so far. Its a 8.5 CF enclosure with a 6" port. Its going to be a down firing subwoofer kind of like the sonotube type design. The port is 26.6" long for a 17hz tune. I will be putting an RL-P 15 D2 in the enclosure and powering it with an EP 1500. The measurements are going to be 20.25" X 20.25" X 48" then Im going to add a piece of 3/4" MDF to the top and two more to the bottom with 1.25" X 5" legs and a 1.5" bass plate. Its realy starting to come together, sure is going to be heavy though . What do you guys think.