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A little study of what polyfill really does in sealed and ported boxes

 

Gold Member
Username: Insearchofbass

Post Number: 1502
Registered: Jun-04
Read and learn
the results suprised me from what i had read in the past.

http://web.archive.org/web/20020808224043/integra.cyberglobe.net/caraudio/resour ces/fiberfill/
 

Gold Member
Username: James1115

Wilton, Ct

Post Number: 2437
Registered: Dec-04
interesting article but if it fools your sub into thinking its that much bigger, wouldnt you lose out on SQ? I mean in a sealed box up to .25cu/ft really wont make that much of a difference but they are talking bigger gains then that so it makes me think you would have to lose SQ.
 

Gold Member
Username: Insearchofbass

Post Number: 1505
Registered: Jun-04
it all depends on the subwoofer in my opinion......run a few diferent subs on a program and youll see what i mean
 

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 7719
Registered: Dec-03
fiberfill gives the impression of a box that's 10% larger than actual size.
that's it.
extends low end response a bit. doesn't really do anything to increase SPL.
what else is there to know? that's about it in a nutshell.
if ya want it, use 1lb/cubic foot of enclosure volume.

 

Gold Member
Username: Insearchofbass

Post Number: 1510
Registered: Jun-04
all i was showing glass was that actual tests werent that cut and dry to 10 percent boost in box size as was thought before his test results show that to not be a hard and fast rule as per spl changle im not sure i agree in every case but I also know you know your stuff.
 

Gold Member
Username: Insearchofbass

Post Number: 1511
Registered: Jun-04
i understand your wanting to keep things simple but to the person who wants to get into the finer details this article helps a bit
 

Silver Member
Username: Tpizzle

Post Number: 129
Registered: Apr-05
do you guys think its worth stuffing your box? how much is the fiberfill, lets say for 1 lb for 1 ft3
 

Gold Member
Username: Insearchofbass

Post Number: 1514
Registered: Jun-04
its like $2.50 a bag at wallmart not sure how much is in a bag but as far as what it will do for your box you can try it ....what subs do you have in a 1 cf box? sealed or ported?
 

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 7727
Registered: Dec-03
polyfill is about $3/bag. its cheap. it's friggin pillow stuffing.
only useful if you have a small box and need to compensate.. which was why I didn't mention it for larger boxes anyway.
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