In case anyone hasnt seen this...man, this looks fantastic...
he wall diffusors are basically a primitive root diffusor, folded into 2D. there are
138646 "tines" distributed around the room, no two the same length.
they are fabricated from 4' x 8' x 1" MDF on a Cosmac horizontal mill. 1532 boards were cut from 1532 individual NC programs. it took 3-1/2 45' semi's to deliver over 90 tons of raw MDF. after fabrication there's more then 40 tons of MDF on the walls.
the ceiling is also a PRD, some 7' high, faced with RPG Skylines.
the big monitors are ATC150's. the mid-fields are Genelec 8050's. the subs are 2 x Genelec 7070. there are many, many choices of near-fields.
the ambience starts at about 30dB down from the direct sound. the RT60 is about 1/4 second, and sounds somewhat consistent above 250Hz and 4kHz.