MBC Metal Back Box – Masonry

MBC Back Box

Use the MBC wood and metal back boxes for installing Stealth’s invisible speakers into masonry, hat channel, or other instances where a support structure is needed for Stealth invisible speakers. MBC boxes can be installed before masonry work is completed, or cut and fitted into existing masonry work.  The wood portion of the box provides a stable and secure attachment point for the speaker while the outer metal shell provides protection from the surrounding masonry.

Constructed of 1.2 mm thick metal, MBC back boxes are shipped fully assembled. Convenient knockouts for conduit are provided, 1 each on the top and bottom of the box. The knockouts will accept 1/2” (13 mm) conduits and loom clamps. The MBC back box is lined on all four edges with 3/4” (19mm) plywood to provide solid mounting surfaces for the speaker panel.

Includes

  • Light Insulation
  • Screw package

Downloads

Specification Sheet
Application Detail
Quick Start Installation Guide
View Instructions
LineaRadiance Brochure

Specifications

Model For Speakers Width Height Depth Ship Weight
MBC-30 LR430, LR30WLRX-85-LF*, B30g* 16-1/8″(409 mm) 30-1/8″(765 mm) 3-15/16”(98 mm) 18 lbs.(8.2 kg)
MBC-24 LR324, LR224, LR224S, LR24W 16-1/8″(409 mm) 24-1/8″(613 mm) 3-15/15″(98 mm) 15 lbs.(6.8 kg)
MBC-22* LRX-83*, LR8g*, SLR8g*, B22g* 16-1/8″(409 mm) 22-1/8”(562 mm) 3-15/16”(98 mm) 14 lbs.(6.4 kg)
MBC-16 LR116 16-1/8″(409 mm) 16-1/8″(410 mm) 3-15/15″(98 mm) 13 lbs.(5.9 kg)
MBC-12 LRX-85-HM, LR6g 16-1/8″(409 mm) 12-1/8″(308 mm) 3-15/15″(98 mm) 10 lbs.(4.5 kg)

*Legacy Model