Polyfill in SVT sub box - confirmation? - Focus Fanatics
Focus Fanatics Ford Focus Forums
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Model Specific Discussions > Car Audio, SYNC, MyFord Touch & Electronics

Car Audio, SYNC, MyFord Touch & Electronics The Forum for the Ford Focus audiophiles. The place to chat about automobile sound systems, security systems, or show off your I.C.E.!
Sponsored By: GT Sound Control


Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 04-14-2013, 05:09 PM   #1
TommyTooHi
Focus Enthusiast
 
TommyTooHi's Avatar
 
Join Date: Oct 2011
Fan#: 90859
Location: Seattle, WA
What I Drive: 2004 Red Focus SVT

Posts: 198
FF Reputation: 1 TommyTooHi Good Standing Member
Buy-Sell-Trade Rating: (0)
Polyfill in SVT sub box - confirmation?

Ok, while looking around for an upgrade I found other references to stock factory sub boxes being stuffed with polyfill.

Wife was 'recycling' some old pillows, and I thought what the heck?

I stuffed the 'audiophile' sub box with it, and I'll be danged if my first impression is "That's better!" as in more bass - punch and depth.

Anybody want to back that up and/or try it and verify?
I haven't done a good drive yet, but initial guess is it helped.

Thoughts?

-T_T


__________________
Aw, heck - you mean what I know...

Mods: Caffeinated nut behind the steering wheel
TommyTooHi is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 04-14-2013, 05:28 PM   #2
sam fisher
I hate dents!
 
sam fisher's Avatar
 
Join Date: Aug 2012
Fan#: 103137
Location: royal oak, MI
What I Drive: 2006 silver zx4 ses

Posts: 2,933
FF Reputation: 3 sam fisher Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by TommyTooHi View Post
Ok, while looking around for an upgrade I found other references to stock factory sub boxes being stuffed with polyfill.

Wife was 'recycling' some old pillows, and I thought what the heck?

I stuffed the 'audiophile' sub box with it, and I'll be danged if my first impression is "That's better!" as in more bass - punch and depth.

Anybody want to back that up and/or try it and verify?
I haven't done a good drive yet, but initial guess is it helped.

Thoughts?

-T_T
Just make sure it isnt in a position to fall into the speaker basket . I used it on one of my older systems and it did seem to help as well

Sent from my LG-LG730 using FF Mobile
sam fisher is offline  
    Reply With Quote
Old 04-15-2013, 10:44 AM   #3
jdetzel
Focus Enthusiast
 
Join Date: Aug 2012
Fan#: 102548
Location: Austin, TX
What I Drive: 2012 White Titanium Hatchback

Posts: 281
FF Reputation: 1 jdetzel Good Standing Member
Buy-Sell-Trade Rating: (0)
Did it to mine and I think it sounds better.
jdetzel is offline  
    Reply With Quote
Old 04-16-2013, 05:34 PM   #4
freemind
Vince your Moderator
 
freemind's Avatar
 
Join Date: Jul 2009
Fan#: 67513
Location: Seattle, WA
What I Drive: 2002 ZX3 and a 2010 Focus SE (Work)

Posts: 3,620
FF Reputation: 20 freemind Great Standing Member
Buy-Sell-Trade Rating: (17)
Polyfill is a very old trick to make a speaker that is in a too small of an enclosure think that it is a bigger bigger enclosure. The fill slows down the backwave. Be warned though, it only goes so far. The formula is 1lb of poly = 1 cuft of airspace. In a small enclosure .20 lbs or less should work. Remember to not pack it tightly.
__________________
133whp-126ftlbsTQ Eclipse CD8443,Eclipse PA5422, JBL GTO751EZ, PPI 356cs(Rebranded A/D/S), JBL p1024, SubThump enclosure, RAAmat BXT, Damplifier Pro

Hatch Nation #140
Caeci caecos ducentes
freemind is online now  
    Reply With Quote
Old 04-23-2013, 09:49 PM   #5
asting
Focus Enthusiast
 
Join Date: Apr 2012
Fan#: 98342
Location: Cleveland, OH
What I Drive: 2012, Tux Blk Met Focus 5d Sport

Posts: 462
FF Reputation: 1 asting Good Standing Member
Buy-Sell-Trade Rating: (0)
Wait, why would you use old pillows? It's like $5 for a giant bag of the stuff.
I got some quilt polyfil for my downfiring sub enclosure (so it stays off of the driver).
__________________
2012 SE Hatch - 5 Speed - Tuxedo Black
Engine: K&N Typhoon CAI, Magnaflow 2.25 exhaust 15072
Suspension: MS3 Springs, Focus electric RMM.
Audio: LC6i, Polk Audio db6501 front, db651s rear, db1040DVC sub, Rockford R600-5 Prime, Fatmat
asting is offline  
    Reply With Quote
Old 04-24-2013, 08:29 AM   #6
TommyTooHi
Focus Enthusiast
 
TommyTooHi's Avatar
 
Join Date: Oct 2011
Fan#: 90859
Location: Seattle, WA
What I Drive: 2004 Red Focus SVT

Posts: 198
FF Reputation: 1 TommyTooHi Good Standing Member
Buy-Sell-Trade Rating: (0)
Bo·he·mi·an

bohemian:
(usually lowercase) - noun:
A person, as an artist or writer, who lives and acts free of regard for conventional rules and practices.

Got it?

-T_T
__________________
Aw, heck - you mean what I know...

Mods: Caffeinated nut behind the steering wheel
TommyTooHi is offline  
    Reply With Quote
Old 04-25-2013, 03:22 PM   #7
Hempster
Focus Enthusiast
 
Hempster's Avatar
 
Join Date: Nov 2005
Fan#: 29310
Location: Lotusland, Canada
What I Drive: 2014 Tuxedo Black Focus ST3

Posts: 352
FF Reputation: 3 Hempster Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by TommyTooHi View Post
Ok, while looking around for an upgrade I found other references to stock factory sub boxes being stuffed with polyfill.

Wife was 'recycling' some old pillows, and I thought what the heck?

I stuffed the 'audiophile' sub box with it, and I'll be danged if my first impression is "That's better!" as in more bass - punch and depth.

Anybody want to back that up and/or try it and verify?
I haven't done a good drive yet, but initial guess is it helped.

Thoughts?

-T_T
I just replaced my sub with the JL 8W1V2-4 and found my enclosure already had the poly fil from the factory?
__________________
Tuxedo Black 2014 Focus ST3
CD Silver 02 SVTF, #1336 - R.I.P.

"Brace for the G's, and fast heel-toe work!"- Hunter S. Thompson
Hempster is offline  
    Reply With Quote
Old 04-25-2013, 05:49 PM   #8
TommyTooHi
Focus Enthusiast
 
TommyTooHi's Avatar
 
Join Date: Oct 2011
Fan#: 90859
Location: Seattle, WA
What I Drive: 2004 Red Focus SVT

Posts: 198
FF Reputation: 1 TommyTooHi Good Standing Member
Buy-Sell-Trade Rating: (0)
Yes, mine had a piece in there as well, sorta stuffed in the front - total area was probably less that 50% of the air space.

The polyfill is a much lighter material than what was in there as well, for whatever that's worth (?)

-T_T
__________________
Aw, heck - you mean what I know...

Mods: Caffeinated nut behind the steering wheel
TommyTooHi is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:43 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX. You can find all Ford Focus related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.