hey i was walking through walmart (i work there, but i wanst really doing much work)
and i saw the poly-fil that ive heard mentioned.

i was curious to what its used for exactly. like what does it do? is it noticable, and how much would you use for 2 kicker solobarics? 12s.

 

i know people stuff it in boxes to make the sub "think" the box has more air space than it actually does. I guess this is a good way to save space while meeting airspace requirements. I've never had to do it so i don't know if it really makes that much of a difference.

how much you put in depends on how much you need to "expand" the box

 

i think you use it to stuff pillows.....

 

origionally it is used for pillows....but it is a good idea to put inside any sub box......it will make the subs "act" like they are in a bigger box because the sound waves are slowed down.......in a ported box it will also help to eliminate port noise....use about a pound of stuffing per cubic foot.......that's what is recommended

 

oh, sweet thanks guys

 

no prob Man......I've always used it in all my enclosures......it helps clean up the sound so you don't have as many sound waves going crazy inside the box....

 

i use this all the time in sealed boxes, and i could hear the difference. it gives off a louder and deeper note when the bass hits. the general rule in using this stuff is, one pound of poly fill to one square foot of air space.

 

sweet deal...its like 2.50 and tax at walmart...but is there anywhere online i can get it cheaper...im not one to pass up a deal...even if its only a buck and change lol

and im tearing up any pillows either

 

wal-mart will probably be your best bet......unless you have like a hobby lobby or something....but it will all be about the same.......

 

oh wait i get 10% discount at walmrt! sweet

 

you can always shave all the neighbor hood cats and use catfur-fil.

 

lol......thats kinda creepy

 

no its not, it won't stay in there, it will get blown out of the port. Goho put some in mine to show me when I asked about it

 

so wait...if i put some in a ported box...itll come out the port?

 

you can really pack it in there and it might still come out, I don't know. but if you are packing it that tight, it would plug your port, and if you don't care about that why do you have a ported box?

 

well...originally i was askin its uses..and no one specified on what box to use\not use it with

 

You don't need to pack in the polyfill in a vented box like you would a sealed box. I would use polyfill mat over just the fill since you can adhere it to the box directly so it wont blow out the port.

 

wouldnt poly-fil affect the port tuning? Would it go up in hertz or down?

 

also....cant i just use dynamat insted (in the box i mean)

 

Yes. It will decrease your tuning since the sub "sees" a larger box due to the polyfill.