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Ceiling speakers acoustic insulation.
Option number one for soundproofing ceiling speakers is to have backer boxes.
The back in most times they are installed without a cover or a shield.
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In ceiling speakers can come in contact with insulation because the insulation is fireproof by design.
This is because the speakers are located very close to the exterior wall.
We basically fill empty cavities with our soundproofing insulation.
Sound also migrates from the in wall speaker to the adjacent room and from the in ceiling speaker to the room above.
Unfortunately most places built in the 1970 s or newer tend to have fiberglass insulation installed in their walls or ceiling and we can not inject additional insulation into these cavities.
All we offer is cellulose insulation injected into walls ceilings or floors.
Normally when installing speakers on a ceiling the back of the speaker goes into the ceiling.