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Best way to decrease the internal volume of a sealed speaker?

I have a very fine sealed 0.75 cu foot cabinet that I would like to reduce the internal volume to about to about 0.45-0.65 cu feet. There is limited space to add things like bricks, pavers etc inside.
I am thinking of using some plastic containers with lids glued to the inside cabinet. Should they be filled with sand?

ozzy


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Showing 2 responses by pbnaudio

pbnaudio's avatar
pbnaudio
1,534 posts
 
Styrofoam will do exactly what you need it will  not absorb no need to coat it and best of all you can infinitely tweak by cutting off material  until you have the correct volume before you make anything permanent. 

Best of luck

Peter
pbnaudio's avatar
pbnaudio
1,534 posts
 
Use Styrofoam blocks - easy to install and easy to remove too

Best of Luck

Peter
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