Hi all,

I am now in the middle of planing a box to my new SPL's SPLW-12 sub.
I try very hard to stick to the manuals specs' and recommendations (volume,
port size....) but i cannot seem to find a way to do so. there are some
physical parameters that i cannot change which are the external diameter of
the sub, its depth, the box volume (recommended by SPL) and the port's
dimentions (they recommend 2 ports of 4" in diameter and 16.75" of length).
any recommendations any one? what happens if i double the volume (i dont
have area problems)?
thanks every one.
yol.