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Discussion Starter #1
I've got a couple of push pull subs and I'm thinking they would benefit from some polyfill as the enclosure isn't that big considering it has dual drivers.


Do you think this would be beneficial for this sub design? If so how would I go about filling it? Since the driver on the bottom of the cabinet is facing up inside the cabinet I'm guessing I'd want to avoid having any polyfill on top of it.


Cheers for any help.
 

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Discussion Starter #3
Won't pillows be detrimental since they are made of cotton and form a barrier between the enclosure and the polyfill?
 

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Quote:
Originally Posted by Mrkazador  /t/1416588/polyfill-in-a-push-pull-subwoofer/0_100#post_22149728


Use a net to keep the polyfill from the drivers.
What he said, or cheap cloth stapled inside to hold it in place. If you can place the cloth over your mouth/nose and breathe through it easily, it's fine.
 

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Quote:
Originally Posted by RTSW  /t/1416588/polyfill-in-a-push-pull-subwoofer#post_22149329


Won't pillows be detrimental since they are made of cotton and form a barrier between the enclosure and the polyfill?
A fabric pillow cover is invisible to long wavelengths.
 

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Quote:
Originally Posted by Bill Fitzmaurice  /t/1416588/polyfill-in-a-push-pull-subwoofer#post_22150044


A fabric pillow cover is invisible to long wavelengths.
. . . which is why Yoda wears a pillow cover.
 
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