The back in most times they are installed without a cover or a shield.
Ceiling speakers acoustic insulation.
A friend of mine had installed speakers in the wall which had a baby s room on the other side.
In ceiling speakers can come in contact with insulation because the insulation is fireproof by design.
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.
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You can do a quick and easy install with a lot of insulation contact that may muffle higher pitches but preserve a good bass response.
All we offer is cellulose insulation injected into walls ceilings or floors.
Sound also migrates from the in wall speaker to the adjacent room and from the in ceiling speaker to the room above.
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We basically fill empty cavities with our soundproofing insulation.
This is because the speakers are located very close to the exterior wall.
Normally when installing speakers on a ceiling the back of the speaker goes into the ceiling.