Solo-baric L7???

[CBFryman]

BCAE1.com

And ill look for a place to download WinISD for you. Download.com may have it. it can calculate port length for you...much past that it isnt a very accurate tool for designing an enclsoure.

Tuning means the frequincy at which the air in the port is providing the most resistance to the driver moving...well that isnt what it actually means but that is what happens. it is the frequincy at which the enclosure is tuned, just like how you change the tone of a trombone, you lengthen and shorten the "port" to change the pitch.

it seems like you dont have that much experence. if you can have the local audio shop build the enclosure for you. if you are a good carpender ngsm13 deisgns custom enclosures for a small fee. he can enter some specs into his program and give you the exact cut out for each peace and how they go togather.

otherwise, id reccomend sealed unless you want to go throuhg a BIG learning experence...