Dear All
This has been done before, If you look at
www.pukstudio.dk studio 1 and click on the picture it is there. The total studio design was done by the now closed SLT (owned by the former owner of GAMUT, ole lund christensen) even though the design specifics was done by other people.
BTW the woofers used are 30" fostex. just to give you a size scale to compare with.
There is an AES paper from 85
Paper Number: 2312
AES Convention: 79 (October 1985) which I think describes the system
in detail.
Cheers
Andreas