why is this here twice? Well, then. let's make this worth it since I can't delete this post.
http://www.royaldevice.com/10amello.jpg
This is The RD Audio Room during set-up: Woofer mounting phase into the SUBHORN compression chamber. The woofers are mounted in the floor with a gigantic horn load scheme.
Rest of the page is here:
http://www.royaldevice.com/custom.htm