I wish I understood better how that all works exactly, but I can never seem to find the time to get into that aspect of all this. The problem here is the major amount of fill used in those cabinets which screws the math all up. I would use the 'speaker wizard' at partsexpress if you want to find something inexpensive for those boxes. I don't know the T/S parameters for the woofers, and I'm not sure anyone does anymore.
