Anyone using Dynamat?
Stellar HDF Member
Joined: Apr 2008
Posts: 3,002
Likes: 86
From: Charlotte Metro
I used Dynamat on a Dragonfly fairing I did couple years ago. I thought it helped and I wasn't concerned about weight considering Dynamat Wedge Pak is rated at 3lbs for 18"x32" sheet or 4sq ft. I am using DynaXorb 6"x6" panels positioned behind my speakers now in HD fairing and I think they do good job.
Cruiser
Joined: Mar 2007
Posts: 160
Likes: 0
http://www.secondskinaudio.com/vibra...damplifier.php
As an alternative to Dynamat.... look at this stuff. I have zero experience with it but I doing the research for a HK head unit swap, speaker swap and AMP addition. Came across this stuff in my research - might be lighter.
I currently have J&M 7.25 inch speakers and the J&M fairing mat. The mat they provided with my speakers is just an open cell foam - it helped some but I don't think the material was designed for use in acoustic applications.
As an alternative to Dynamat.... look at this stuff. I have zero experience with it but I doing the research for a HK head unit swap, speaker swap and AMP addition. Came across this stuff in my research - might be lighter.
I currently have J&M 7.25 inch speakers and the J&M fairing mat. The mat they provided with my speakers is just an open cell foam - it helped some but I don't think the material was designed for use in acoustic applications.
Extreme HDF Member
Joined: Apr 2006
Posts: 10,449
Likes: 46
From: Roswell, GA
Another Dynaxorb (made by Dynamat) user here and it does work; made a noticeable, but not a WOW, improvement. It definitely reduced the back wave described in Dynaxorb's website:
http://www.dynamat.com/products_car_audio_dynaxorb.html
My before and after testing was crude: put my hand on the outer fairing while playing the same CD music at the same volume before and after adding the Dynaxorb squares. After installation, the level of vibration in the outer fairing was noticeably reduced.
Carl
http://www.dynamat.com/products_car_audio_dynaxorb.html
My before and after testing was crude: put my hand on the outer fairing while playing the same CD music at the same volume before and after adding the Dynaxorb squares. After installation, the level of vibration in the outer fairing was noticeably reduced.
Carl
Had a high end system installer suggest polyfill. He said it would help "trick" the speakers into thinking they were in a larger enclosure there by producing a slight increase in bass. I haven't tried this yet. Anyone else try it? If so, what's your take?
Polyfill
Well, I put a single layer of polyfill behind each speaker in the batwing last night. I can say it seems to help with the bass, which I so wanted to hear. It doesn't give that thumping bass, but it made the Hawg Wired system sound even better going down the road. When I get back from my week long ride / vacation I'll spray some adhesive in the firing and do a better job. But for now I'm happy to report polyfill does help.
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,190
Likes: 5
From: Eastern Washington
I used Dynamat on a Dragonfly fairing I did couple years ago. I thought it helped and I wasn't concerned about weight considering Dynamat Wedge Pak is rated at 3lbs for 18"x32" sheet or 4sq ft. I am using DynaXorb 6"x6" panels positioned behind my speakers now in HD fairing and I think they do good job.
Another Dynaxorb (made by Dynamat) user here and it does work; made a noticeable, but not a WOW, improvement. It definitely reduced the back wave described in Dynaxorb's website:
http://www.dynamat.com/products_car_audio_dynaxorb.html
My before and after testing was crude: put my hand on the outer fairing while playing the same CD music at the same volume before and after adding the Dynaxorb squares. After installation, the level of vibration in the outer fairing was noticeably reduced.
Carl
http://www.dynamat.com/products_car_audio_dynaxorb.html
My before and after testing was crude: put my hand on the outer fairing while playing the same CD music at the same volume before and after adding the Dynaxorb squares. After installation, the level of vibration in the outer fairing was noticeably reduced.
Carl
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Road Captain
Joined: Aug 2010
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From: NYC
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Ultimate HDF Member
Joined: Jun 2009
Posts: 6,932
Likes: 4
From: 46th State, USA
Dynamat is designed for heat insulation and sound deadening. I don't think Dynamat will do anything for improving acoustics. I don't think it would ad much weight so the only way to find out is to try it. The last time I use Dynamat it was a bit exspensive.
Last edited by shortride; Jul 13, 2011 at 09:54 AM.
Extreme HDF Member
Joined: Apr 2006
Posts: 10,449
Likes: 46
From: Roswell, GA
Polyfil mat does the same thing--breaks up the back wave from the speaker as depicted in the Dynaxorb link I posted previously in this thread.
FWIW, I contacted the webmaster at "Basic Car Audio Electronics" and asked him if the Dynaxorb and polyfil really served their intended purposes; specifically, I was asking about stuffing Polyfil stranded product (as used for making pillows) in the CVO Street Glide speaker boxes installed in my vented lowers would help the audio quality. He confirmed that those products work.
I don't know if you would see any improvement using Dynaxorb in lieu of or in addition to the Polyfil mat you're currently using.
Carl