Poly-fil opinions

[Fluentsarcasm1]

I am thinking about stuffing all the holes that I can find behind the panels in the interior and trunk of my car to reinforce and improve sound quality. Thoughts?

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[soloXgt 10+ year member]

why not just use proper sound deadening material?

 

[Fluentsarcasm1]

I did. Just wanted to kind of seal off and make everything solid

 

[PSturmer 10+ year member]

poly-fill is used to increase the apparent volume seen by a speaker. in sound quality this has the effect of smoothing out the response. however, it also lowers the efficiency of speakers. meaning, put some in a sub box and the sub may sound smoother, get lower, but it won't get as loud. sounds to me you need sound deadening more than poly-fill.

 

[mlstrass 5,000+ posts]

will not add strength at all....