Middle Atlantic SBX 7U 17-Inch Depth Fixed Wall Rack 100878214 or in multiple cabinet clusters

or in multiple cabinet clusters

so you can use lenses from manufacturers such as Canon

Mono: Sums the left and right outputs to mono

70 Hz – 18 kHz frequency response

Middle Atlantic SBX 7U 17-Inch Depth Fixed Wall Rack 100878214 or in multiple cabinet clustersMiddle Atlantic SBX 7U 17In Depth Fixed Wall Rack 17" D X 15 1 2" H Features: Removable backpan simplifies installation Includes locking front door that swings open a full 180 on a rugged hinge Ventilation slots on each side promote passive thermal management Laser and electrical knockouts at top, bottom, and rear for cable pass through Standard heavy gauge, 10 32 threaded rackrail with marked spaces Specifications: Finish: Textured Black Powder Coat