Most know that Brian has a 15", Ultra-MegaWoofer that is used in the VSS Subwoofer.
Well he has also decided to make the 12" Ultra-MegaWoofer which is currently only used in the VLA available too for those of you who have 12" woofer VMPS Models (RM-2 owners, and Original Sub owners)
They are priced at $225 each plus shipping.
Those who purchase the RM2 models can also add these as an option for $225 per pair over the standard megawoofers. On the RM2jr, the price is $350 per pair to upgrade from the Polycone 12".