Backbox for B&W CI 600 6" in-ceiling speakers.The back box increases sound insulation to adjoining rooms and provides the fire safety barrier sometimes required by building regulations. Use it in solid construction to define a suitable working volume for the speaker, which may need to extend beyond the boundaries of the wall frame.This B&W In-ceiling speakers backbox can be used for: All B&W CI 600 6" & 8" in-ceiling speakers Meeting fire safety building regulations Reducing unwanted sound leak to rooms above Further Improving sound performance In drywall construction, the back box increases sound insulation to adjoining rooms and provides the fire safety barrier sometimes required by building regulations to prevent any fire present in the wall cavity from spreading into the room. Use it in solid construction to define a suitable working volume for the speaker, which may need to extend beyond the boundaries of the wall frame.
