Fiber fill vs. fiberglass vs. wool vs lined cabinet walls - Page 3 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 25th November 2012, 01:53 PM   #21
diyAudio Member
 
Join Date: Aug 2012
Quote:
Originally Posted by tvrgeek View Post
See my threads on stuffing tests. Summary: For a sealed box, I went back to plain old FG insulation packed pretty tight. Much tighter than I expected. Pillow stuffing was terrible. Cotton, wool, foam, and boutique stuffing worked about as well, but cost a lot more. All that hub-bub on activated carbon I consider just plain inappropriate as I want a speaker, not a de-humidifier. ( and my test showed it did not work anyway). I learned enough to not bother with more tests and no one else seemed willing to take up the next level, just argue with no facts. So I am back to working on other problems. Can't decide: Small three way with first order crossovers or another two way with the Satori and OM1.
Is there any rissue with the moving parts in a speaker and the harsh nature of fiberglass causing wear or damage?

Thx
  Reply With Quote
Old 25th November 2012, 03:14 PM   #22
diyAudio Member
 
Join Date: Nov 2008
A few questions.

Are the green sound absobing insulation batts from Home Depot the same as fiberglass. I will assume FG refers to the pink insulation?.

I have a fair number of Sorbothane sheets left over from another project. Can this be used as damping along the interior walls?.
  Reply With Quote
Old 26th November 2012, 03:07 PM   #23
diyAudio Member
 
Join Date: Aug 2009
Location: North Texas, USA
Not backed. They expand to ~ 2.5"

Quote:
Originally Posted by Pallas View Post
I can't tell from the website - is are the thin HD rolls backed with anything, or are they suitable as is to use as loose fill?
__________________
I was so much older then, I'm younger than that now.
  Reply With Quote
Old 26th November 2012, 03:34 PM   #24
Pallas is offline Pallas  Pakistan
diyAudio Member
 
Join Date: Aug 2004
Location: ATL
Quote:
Originally Posted by fastbike1 View Post
Not backed. They expand to ~ 2.5"
Thanks (ditto to Pano; your answers were different but no backing vs. easy-to-peel backing is all the same to me) and also for the heads up about their expansion. I have nowhere really to lay them out to expand - loft, with two ferocious mini-lions who I bet would love to rip this kind of stuff apart - so good to know to account for expansion during the installation.
__________________
Serious Audio Blog
  Reply With Quote
Old 26th November 2012, 04:43 PM   #25
ra7 is offline ra7  United States
diyAudio Member
 
Join Date: Feb 2009
Blog Entries: 1
Kooshball, here's some info that you might find useful:
Box colourations - really ?
Best sealed enclosure for completely supressing back wave
  Reply With Quote
Old 26th November 2012, 06:12 PM   #26
diyAudio Member
 
Join Date: Aug 2012
Btw, where do folks normally buy these materials like acoustic felt, rock wool, etc?
  Reply With Quote
Old 26th November 2012, 06:13 PM   #27
diyAudio Member
 
Join Date: Aug 2012
Quote:
Originally Posted by ra7 View Post
Kooshball, here's some info that you might find useful:
Box colourations - really ?
Best sealed enclosure for completely supressing back wave
Thanks, will check it out.
  Reply With Quote
Old 26th November 2012, 06:13 PM   #28
Pallas is offline Pallas  Pakistan
diyAudio Member
 
Join Date: Aug 2004
Location: ATL
Quote:
Originally Posted by fastbike1 View Post
Bonded Logic Ultra Touch recycled denim has close to the same properties as fiberglass and is a lot easier to handle.

In the U.S. the best deal is order 6 rolls online from Home Depot.
FWIW, they've relaxed their minimum for free shipping today. So a 6-pack of this stuff is free to ship today.
__________________
Serious Audio Blog
  Reply With Quote
Old 26th November 2012, 06:42 PM   #29
diyAudio Member
 
Join Date: Aug 2010
To reduce wall resonance, bitumen converts vibrations into heat.
Bathroom tiles glued with wisco elastic glue is also very good.
Felt or foam on the walls are menaingless!!

The air wave has no speed close to the wall.
Stuffing should be close to the speaker element!
Since the speed is highest near the membrane the stuffing works best there...
  Reply With Quote
Old 26th November 2012, 06:45 PM   #30
diyAudio Member
 
Join Date: Aug 2012
Quote:
Originally Posted by esl 63 View Post
To reduce wall resonance, bitumen converts vibrations into heat.
Bathroom tiles glued with wisco elastic glue is also very good.
Felt or foam on the walls are menaingless!!

The air wave has no speed close to the wall.
Stuffing should be close to the speaker element!
Since the speed is highest near the membrane the stuffing works best there...
Perhaps a system approach is the best? A heavy layer for resonance and a fiber layer to reduce reflections back through the driver?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sand filled cabinet walls question zmyrna Multi-Way 48 28th June 2012 09:55 AM
OB Wool vs 703 Fiberglass ? GregOH1 Multi-Way 2 27th May 2007 05:07 PM
FS: Long fiber wool mikebarney Swap Meet 1 8th February 2006 02:03 AM
Slot port. Using cabinet walls. How to correct? Help! tarnationsauce Subwoofers 3 22nd July 2005 08:53 PM
Method for attach fiberglass to MDF walls JC Fardo Multi-Way 7 13th April 2005 07:32 PM


New To Site? Need Help?

All times are GMT. The time now is 03:10 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2