The front of the final equipment room in the rear of the theater.  From top to bottom the equipment is as follows...  

IEV Turboscan 1500 line doubler
Home built electronic crossover for right and left mains
Marantz Pre/Pro
HTPC built by Berry Bros Inc.
Sony DVD player
Laser disc player
Sony VCR
The bottom three are R, L and rear surround amps