Just got the email from Jess Quintana from AV123 regarding the new X-plosive sub that hasn't hit the market yet.
It is a 10" driver with a 12" passive radiator. They had it at the Rocky Mountain Audio Festival and it played down to 20Hz in-room, in a standard Marriott Hotel room.
They will be shipping in late January, and are currently accepting pre-orders. $299 in Satin black, $389 all other finishes.
I'll be interested to see the reviews: