Pillow Stuffing in Box, Myth or Fact?

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spmpdr

Copper - Posts: 456

Joined: March 22, 2009

Location: Oregon, United States

Posted: March 26, 2009 at 10:04 AM / IP Logged

hey everyone, does anyone know if this is true: using pillow stuffing inside your sub box to slow down the air movement thus "tricking" the sub into thinking its in a larger area than it truly is.

-A vision without a plan is just a hallucination-

lspker

Silver - Posts: 503

Joined: November 23, 2003

Location: Canada

Posted: March 27, 2009 at 9:05 PM / IP Logged

and it gives it a dreamyer sound!

davo12662

Member - Posts: 6

Joined: March 28, 2009

Location: Michigan, United States

Posted: March 28, 2009 at 5:02 AM / IP Logged

i bought a kicker L5 a fewyears back and if i recall i thought it mentioned it in the owners manual.. hmm, maybe i just read it up someplace online too. i dont see how it can hurt anything but i didnt notice anything dramatically different from any other setup ive had.

interesting idea however hah

KPierson

Platinum - Posts: 3,527

This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: March 28, 2009 at 7:10 AM / IP Logged

Kicker, for as long as I can remember, has always recomended polyfill inside their enclosures.

I don't know if it helps or not, but I've always had it in my enclosures.

Kevin Pierson

truebassjunkie7

Member - Posts: 20

Joined: March 25, 2009

Location: Pennsylvania, United States

Posted: April 15, 2009 at 4:40 AM / IP Logged

Polyfill is the shizznit lol. It worked in many boxes I built.

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ckeeler

Gold - Posts: 1,461

Joined: June 20, 2008

Location: New Mexico, United States

Posted: April 15, 2009 at 9:22 AM / IP Logged

polyfil works by creating a longer path for the air inside the enclosure to travel over, thus making the driver act as if in a larger enclosure. not much larger though, it only adds up to a 10% perceieved increase in space to the driver.

bellsracer

Silver - Posts: 703

Joined: January 14, 2006

Location: United States

Posted: May 07, 2009 at 4:39 PM / IP Logged

And in order to achieve that sound, about 40% of the airspace needs to be filled. Typically, that is about 1lb. for ever cubic foot of airspace in the box.

But hey, that 10% "increase" might be just the thing one needs for the dreamy sound they wanted.

Ganbatte ne!

~~~~~~~~

ps. Hi Kevin... How have you been?

Never send your ducks to eagle school.

The difference between ordinary and extraordinary is that little extra.

The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.

bigjohnny

Copper - Posts: 293

Joined: September 23, 2008

Location: Ontario, Canada

Posted: May 07, 2009 at 8:01 PM / IP Logged

I know from experience that stuffing your box will give you a much richer sounding bass, much tighter. sounds cleaner. An empty box resonates, and you can hear it at the right frequencies.

I will always stuff my boxes, or line them with some padding, like 1/4" felt.

97beast_dodge

Member - Posts: 1

Joined: September 21, 2009

Location: Texas, United States

Posted: September 21, 2009 at 10:42 AM / IP Logged

does this work in ported boxes as well as sealed? which would sound better with 4 10" kicker cvr's?

icearrow6

Copper - Posts: 497

Joined: February 02, 2009

Location: California, United States

Posted: September 21, 2009 at 12:18 PM / IP Logged

kicker's prefab enclosures have about 40% polyfil in them from factory... Its not terribly expensive so just try it out!!! The road to audio bliss is a long and expensive one....

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