Boston Acoustics

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Fire-Rated Back Boxes offer new levels of performance

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Specifically designed for our existing line of advanced 6" in-ceiling loudspeakers, these Fire-Rated Back Boxes offer new levels of performance, reliability and convenience in a variety of commercial and residential loudspeaker applications.

The FRB models meet the following agency requirements:

  • UL 2043
  • ATSM E119
  • NFPA251
  • ULC CAN/UNLC S101/M89
  • UBC 7-1
  • Fits all Boston 6" in-ceiling speakers
  • Standard 3/8" knockouts for the two supplied ULM connectors
  • Color coded raised flange around the speaker opening to aid location after drywall installation, blue for 6" speakers
  • Can be mounted in 12", 16" or 24" stud bays
  • Adjustable support bars are supplied that allow easy installation in drop tile ceilings
  • An integrated safety tab is mounted on the back of the cabinet for an installer-supplied safety cable
  • internal mountings for 70V/100V transformers

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