Built your own Sub Box (Step in)
material as in polyfill? not needed. it just tricks the sub into thinking its in a larger box by slowing down the sound waves.
(haven't built my box before, but this is just general knowledge)
(haven't built my box before, but this is just general knowledge)
You would only need Polyfill if you are trying to save space and need a box to act bigger than it actually is. If thats your case then add a lil, listne to it and then take out or put in until you get the sound your like.
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