Tuning and fiberfill

[ajbrickyard 10+ year member]

I'm a newbie and can someone tell me does fiberfill change port tuning? i want to put a TS-W3004SPL in a ported box the box size that will fit in my trunk is 1.3cu. and tuned to 32Hz I want to add fiberfill to make it 1.6-1.7 would this work?

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[PowerNaudio 10+ year member]

poly fill, fiber fill what ever you call it, what it does is slow down the air inside the enclosure, so it makes the sub feel like its in a bigger box. it also lowers the tuning a little bit, again since its slowing the air down.

 

[PV Audio 5,000+ posts]

Indeed, poly-fill does do that, however, other box fills (open or closed cell foam, Dacron, fiberglass, etc.) have different effects and are used for different reasons. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif