I am trying to get around 3.5 cubic feet tuned to 35Hz per what eD requires. This is what I am using...
http://www.edesignaudio.com/product_info.php?t=2&products_id=37
and this...
http://www.edesignaudio.com/product_info.php?t=2&products_id=44
Using Torres' Box program I came up with this
Is this somewhat in the ballpark? I will be doing some bracing of course.