Get some that is at least as thick as the speaker is deep.
In ceiling speakers sound insulation.
Take one piece cut a hole place it around the speaker.
Your backer box should not be more than 3 inches deep for in wall speakers and 5 inches for in ceiling speakers.
If you want to do it on the cheap i would use regular fiberglass bat insulation.
The ready made solutions are great if you want fast but old bed sheets are much cheaper.
If it s worth doing what s the best kind of insulation to use.
There s a garage on the other so not worried about sound transmission.
Can i install these speakers if i have blown in insulation.
This is because most walls inside the room have 2x4 framing and the ceilings have 2x6 framing.
In ceiling speakers can come in contact with insulation because the insulation is fireproof by design.
They might perform best without any enclosure at all e g.
To protect open back ceiling speakers from insulation or other debris you can just use cotton cloth like a cut up old bed sheet.
When placed in a ceiling that has an attic above without any insulation covering the speakers.
Installed over the speaker and secured through the dry wall hole.
You can use window screen mesh or use a piece of batting style insulation as a way to hold the insulation back without inhibiting the proper air flow.
However there may be impacts on the sound quality of the speaker depending on how much contact there is.
The wall speakers are 3 5in deep so almost right on the other side of the wall.
What are the rules of thumb for installing cabinet insulation.
Is it worth re insulating a 40 year old box if the insulation is missing or in poor condition.
Take a second piece place it over the first.
The sheetrock will be 5 8in so a slight gap behind.
This is for a 7 1 4 setup and the ceiling is made up of 2x8 joists and the speakers are about 5 5 inches so about 2 in of gap behind.
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.
I went with dynaboxes for the in ceiling speakers to control exterior sound in the scuttle area and hopefully provide a more focused fuller bass sound from the speakers.