fiber fill....

[phockey10 10+ year member]

has anyone had used this stuff? my friend used it in his car and said it makes your subs "think" your box is larger?.?.. He gave me some that he had left over, and im a little skeptical about this before i go putting stuff in my box with my subs

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[audioholic 5,000+ posts]

Do a search on this site for 'polyfil' and you'll get all the answers you need.

 

[Cabin_Pressure 10+ year member]

Do a search on this site for 'polyfil' and you'll get all the answers you need.

x 2 This has been done to death.

 

[phockey10 10+ year member]

lol thanks

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[n2audio 5,000+ posts]

google "tom nousaine polyfill"