Wow. That system in Japan blew me away. The ultimate in audio excess. When I thought of designing the room I thought of basic acoustics to prevent standing waves, blah blah blah. These f**ker built a friggin bass horn as part of the foundation of the listening chamber- he is got cojones. I don't think he will be able to get any money for it on ebay later, unless he transfers title to the land/building as part of the transaction, though. "Custom made subwoofer - house included"
Great site - thanks for exposing it here.
Pepe