Speaker Damping Material - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 15th January 2009, 05:44 PM   #1
diyAudio Member
 
Join Date: Dec 2008
Default Speaker Damping Material

Hi guys.

Hopefully someone can shed some light on this subject.

I'm about to install a pair of Full range Audio Nirvanas in a new set of cabinets.

The AN specs call for sound damping material on the upper half of the cabinet, no more than 1 inch thick.

Now, other than fiberglass, which I am not going to use, what other damping material will not hurt the bass response?

The AN people say NOT to use the egg crate type foam because it eats up the low frequencies. No good.

Would anyone have an online source?

Many thanks for any help.
Retro Rick
  Reply With Quote
Old 15th January 2009, 05:56 PM   #2
sarrisk is offline sarrisk  Greece
diyAudio Member
 
sarrisk's Avatar
 
Join Date: Aug 2008
Hi ,
In my DIY pair I used DYNAMAT in the wall behind the driver. You can take a look about DYNAMAT here : http://www.dynamat.com/index.html

costas
Attached Images
File Type: jpg sp-dynamat1.jpg (9.3 KB, 632 views)
  Reply With Quote
Old 15th January 2009, 06:16 PM   #3
Banned
 
Join Date: Jan 2008
Blog Entries: 2
I used a kind of glassfibre insulation substitute you can get here, it's made out of coke bottles.

I can't give you comparative data on it's performance tho' because I can't give up the use of the speakers long enough to mess around with it. Can't be that bad...

w
  Reply With Quote
Old 15th January 2009, 08:14 PM   #4
diyAudio Member
 
Join Date: Dec 2008
Thanks guys. I hear that "No Rez" is the way to go.
  Reply With Quote
Old 15th January 2009, 08:55 PM   #5
diyAudio Member
 
Join Date: Dec 2008
Location: Victoria, BC
Have you contacted David at Commonsense Audio? He's been quite helpful when I had questions about my AN speakers. He would probably have some suggestions for US-sourced materials.
I used 1" acoustic insulation material (yellow, fiberglass based?) and it seemed to work OK.
John
  Reply With Quote
Old 15th January 2009, 09:35 PM   #6
diyAudio Member
 
Join Date: Dec 2008
Default AN

John,

You say that it worked "OK". Were you less than happy with the results? Did you do the entire cabinet, or just the top half?
  Reply With Quote
Old 16th January 2009, 02:39 AM   #7
diyAudio Member
 
Join Date: Dec 2008
Location: Victoria, BC
Default Re: AN

Quote:
Originally posted by Retrosonic
John,

You say that it worked "OK". Were you less than happy with the results? Did you do the entire cabinet, or just the top half?
Rick-
I did just the top half, as per the suggestions from David at commonsenseaudio. I don't trust myself to detect much in the way of differences without setting up an A/B type of test, so I haven't experimented much with different materials (not having a 2nd pair of enclosures and speakers).
I'm happy with my AN10s- but again I don't have a wall of speakers for comparison.
Which AN speakers do you have? Which enclosure did you build?

Cheers
John
  Reply With Quote
Old 16th January 2009, 02:52 AM   #8
Cliff45 is offline Cliff45  United States
diyAudio Member
 
Join Date: Oct 2007
Location: Arizona, USA
Hello all-

I have used this type of material, made by Owens Corning, in quite a bit of acoustical treatments over the years:

SelectSound Acoustical Board

This material seems to work very well for "broadband" absorption, and I see no reason why it could not be used inside of a speaker enclosure as well. I have seen folks use what is commonly called "duct board" for this type of things as well, but that is a semi-rigid yellow "fiberglass" product that seems too dense (to me) to be of much use in broadband absorption applications.

A lot of the pro-audio speaker enclosures I have had apart over the years seemed to have a white, fluffy type of filling either loose or in blanket form inside. Some people seemed to call that stuff "Dacron fill", from what I remember.

I was able to order a minimum amount of that Owens Corning material from my local lumber yard, they deal in Owens Corning products.....

HTH
  Reply With Quote
Old 16th January 2009, 02:53 AM   #9
diyAudio Member
 
Join Date: Dec 2008
Default AN

Hi John.

I have the AN 10 inch cast frames. Right now they are in a pair of old advent cabs and I am NOT impressed, BUT I hear that in the right cabinet they can be great. The are certainly great in the mids. The bass is what I'm trying to get right.

I had the big 5.6 cabs built per their spec by a professional cabinet builder.
  Reply With Quote
Old 16th January 2009, 02:57 AM   #10
diyAudio Member
 
Join Date: Dec 2008
Default Absorb

Cliff, I think that stuff would be the last thing you would want inside a speaker enclosure, it would suck up the bass.

All youre looking to do with sound damping material is to eliminate standing waves so that they dont travel back thru the speaker cone and mess up the mid/bass.
  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
Damping material. bmxsummoner Full Range 0 21st August 2009 09:18 PM
New damping material? 454Casull Multi-Way 0 1st March 2004 03:40 AM
Damping Material Jhovis Multi-Way 5 29th September 2003 08:35 AM
Speaker Damping Material AudioFreak Multi-Way 12 7th January 2003 08:29 AM
Damping material. JoeBob Multi-Way 6 24th November 2001 02:23 PM


New To Site? Need Help?

All times are GMT. The time now is 04:31 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