Unfortunately this site http://www.servodrive.com/ is down. ServoDrive uses belt driven motors to actuate their cones. These are not self powered or crossed over and they require much less power. Ask around, these are the loudest cabinets by a large margin.
Meyer Sound has a nice selection of bins and powered units. There stuff sounds much better than their specs would have you believe.
Bag End ELF systems are typically in sealed enclosures and they also require less power and come in many sizes. Their designs may seem dated but they go lower than most anything out there, they simply work. There were two 18" cabinets, processor, and an amplifier for sale here for $1200.
12K for a sub is a joke. Do your homework. Whatever you select use a Velodyne SMS-1 then let any HT room correction take it from there.
Meyer Sound has a nice selection of bins and powered units. There stuff sounds much better than their specs would have you believe.
Bag End ELF systems are typically in sealed enclosures and they also require less power and come in many sizes. Their designs may seem dated but they go lower than most anything out there, they simply work. There were two 18" cabinets, processor, and an amplifier for sale here for $1200.
12K for a sub is a joke. Do your homework. Whatever you select use a Velodyne SMS-1 then let any HT room correction take it from there.