UL Listed Metal Back Box (adjustable width)_|_Fits Speaker: LR430, LR30W, LRX85-LF (MBA30)

The versatile, UL listed MBA back boxes are built to adapt to whatever framing configuration you may have on the job site. MBA back boxes are recommended for installations:

1. Where the space behind the speaker is open;
2. Where a metal closure is required and the mounting distance between the framing members is less than 16” (406 mm) on center;
3. When using metal studs or hat channel/suspended hard lid ceilings.

MBA series back boxes are constructed of 1.1 mm thick metal and are shipped unassembled, ready for your custom configuration needs and UL listed. Convenient 1/2” (13 mm) and 3/4” (19 mm)knockouts for conduit are provided.