
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, LR30W, LRX-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