poly fill?

[spike_e 10+ year member]

just out of curiosity what is it and why do you benifit puttin it in a sealed box?

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[CRAZYCORNUTS18 10+ year member]

it makes the box seem bigger cuz it takes the air longer to get to the box walls

some correct me if im wrong

 

[blimblam 10+ year member]

its what are in pillows. it tricks the sub to make it seem it is in a bigger box.

 

[Tmx20SC 10+ year member]

You might even get lower lows.

 

[audiobahnuser18 5,000+ posts]

Basically makes the sub think that the box is bigger. usually used to hit better low's .

 

[THUMPPER 10+ year member]

pollyfill eats up inner volume /alters tunning, lowers out put

and it also traps heat..

used correctly it reduces standing waves in a cube shaped enclosure

all in all I'm not a huge fan of pollyfill but that's just my

opinion....

I have seen reports on testing pollyfill in enclosures in Autosound magazine

and the results claimed little or no audiable difference in a positive way

try it and see what happens

 

[spike_e 10+ year member]

where can i get it?

 

[mobeious 10+ year member]

they say 1lb of polyfill = 30% more encloser volume all i can say is that i do not use it much. only in situation that the box is a tad bit small like trying to do a stealth or OEM install where space is not avalible but try it and see how u like and see if u notice a difference

 

[Trixter 10+ year member]

where can i get it?

walmart, bedding section.

 

[Rich B 5,000+ posts]

they say 1lb of polyfill = 30% more encloser volume /QUOTE]

1lb per cubic foot.

But I've never been comfortable trying to cram that much polyfill into a box, as 1lb is a lot of fill since it weighs nearly nothing.

Maybe at the most I've gotten 3/4lb per cu ft into boxes.

 

[HelloImBob 10+ year member]

they say 1lb of polyfill = 30% more encloser volume /QUOTE]

1lb per cubic foot.

But I've never been comfortable trying to cram that much polyfill into a box, as 1lb is a lot of fill since it weighs nearly nothing.

Maybe at the most I've gotten 3/4lb per cu ft into boxes.

I was just thinkin the same thing, that stuff is like lighter than feathers lol I used to have a big bag of it and it still felt empty... at one pound per ft^3 I would imagine the box would be like all polyfill

 

[ShakesAllDay 10+ year member]

I just stuffed about 2/3 of a 20oz (about 14oz) bag of poly-fill into a 1.0^3 and I was thinking it seemed like too much. I could still push my hand through to the back of the box without the polyfill getting very stiff, so I assume it is okay.

I waiting on the good thumps after a couple weeks of break-in... it already sounds great (Kappa 124.7w on a Alpine M450).

 

[bigbang 10+ year member]

I hope the polyester fiber fill at wall mart still doesnt have pictures of teddy bears and dolls on the bag lol. Also it causes sound to decay faster in the enclosure as sound waves cause internal friction and movement within the fill, producing heat. Makes the sound disapear quicker after the note is played instead of echoing in the enclosure and reflecting back on to the cone, a good thing.

 

[amedeuce 10+ year member]

http://www.soundsolutionsaudio.com/forum/index.php?showtopic=7168

 

[ShakesAllDay 10+ year member]

I hope the polyester fiber fill at wall mart still doesnt have pictures of teddy bears and dolls on the bag lol. Also it causes sound to decay faster in the enclosure as sound waves cause internal friction and movement within the fill, producing heat. Makes the sound disapear quicker after the note is played instead of echoing in the enclosure and reflecting back on to the cone, a good thing.

Yup.. teddy bears. I got the good stuff (Fairfield), not the Wal-Mart brand (probably doesn't matter, but at $3 for 20 oz, I wasn't breaking the bank). I'm digging the sound that my polyfilled enclosure is putting out right now. Seems tight and deep (hahahaha).

http://www.soundsolutionsaudio.com/f...showtopic=7168

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