How much fluffy stuff in sub box? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
General Tech Have a question that is not covered by one of the other categories? This is the forum for all other items not specifically covered in other categories.

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 04-19-03, 06:26 PM Thread Starter
Registered User
 
Join Date: May 2002
Location: melbourne
Age: 35
Posts: 368
How much fluffy stuff in sub box?

Ive seen boxes that just have a layer lining all the walls and ive also sean boxes that are totally full of it. Which is the way to go and how does more or less effect sound?

THanks
Aaron

xespack is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 04-20-03, 07:05 AM
'95 EF GLi
 
Join Date: Apr 2003
Posts: 84
check out http://www.jlaudio.com/tutorials/index.html. there is heaps of info on subs.
BlueAvatar is offline  
post #3 of 8 (permalink) Old 04-20-03, 10:21 AM
Registered User
 
snavy's Avatar
 
Join Date: Jan 2002
Location: mebourne
Posts: 1,969
go to caraudioaustralia.com can find good help there. Thats where i learnt about car audio.

but seriously that fluffy stuff is meant to trick your subs into thinking the box is bigger than what it is.

but last time i read about this subject, it makes bugger all difference if the fluffy stuff is there or not.
snavy is offline  
post #4 of 8 (permalink) Old 04-20-03, 05:31 PM
mmmmm....kookyfudge
 
kooky's Avatar
 
Join Date: Jan 2003
Age: 41
Posts: 1,760
snavy is spot on dood i wouldnt bother with the dacron (fluffy stuff). If your internal volume is right you shouldnt need to worry. plenty of top line car audio installs dont have it, correct box volume should be the first priority and you have that now. Itching to hear the results mate. BTW make sure you use gap filler and make sure to fill every hole in the box if you dont it will whistle and it lessens the box's efficiency.

..........Black MY02 WRX..........

kooky is offline  
post #5 of 8 (permalink) Old 04-20-03, 07:32 PM
'95 EF GLi
 
Join Date: Apr 2003
Posts: 84
i thought the fluffy stuff was something to do with resonances and echos? i dunno... but check out what JL has to say because they have alot of good info on sub box designs.
BlueAvatar is offline  
post #6 of 8 (permalink) Old 04-25-03, 06:42 PM
Registered User
 
XESpakman's Avatar
 
Join Date: Mar 2003
Age: 34
Posts: 255
The stuffing is there to both make the box appear larger to the speaker and to stop internal resonances. The way it works is the air moving in a bare box moves in a straight line to the walls, in a stuffed box the air has to weave around the fibres, creating a longer path. In a sealed box (where the box should be loosly filled to the top) this can make the box appear up to 3 litres larger or more for big boxes, resulting in lower bass extension with minimal booming as the actual volume of air hasn't increased.
The fluff also absorbs the back wave, helping attenuate the reflected sound from coming out throuhh the cone, which results in cleaner sound. In a vented box, the result is the same, but you only line the walls with 1 to 2 inches of the stuff, and keep it away from the ports so the air can move freely.
Hope that helps...

XF died, Now It's a 6-cyl Cortina!
Rear ended 3 times, 4 close calls.
All while I was stationary, still counting the idiots..
XESpakman is offline  
post #7 of 8 (permalink) Old 04-26-03, 03:08 AM
'95 EF GLi
 
Join Date: Apr 2003
Posts: 84
Smile

finally! someone who knows the answer! thanks dude! that makes perfect sense to me!
BlueAvatar is offline  
post #8 of 8 (permalink) Old 04-26-03, 01:58 PM
Registered User
 
snavy's Avatar
 
Join Date: Jan 2002
Location: mebourne
Posts: 1,969
if you want to learn more about car audio go to caraudioaustralia.com, the people there are damn helpful! Its interesting stuff to learn about, also stops you from buying the wrong gear :)
snavy is offline  
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > General Tech


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Skaife's out!! ford.boy Ford Racing Across the Globe 24 10-03-02 03:37 PM
Newcastle Meetup Sunday 9th eb_5litre On the Road in Australia 40 06-10-02 04:50 AM
Happy Birthday Falchoon The Pub 9 02-24-02 12:33 PM
New brake pads marine1 Suspension | Wheels&Tires | Brakes 23 02-20-02 09:46 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome