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internal sound deadening

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=73403
Printed Date: May 13, 2024 at 4:39 PM


Topic: internal sound deadening

Posted By: jlord16
Subject: internal sound deadening
Date Posted: February 24, 2006 at 6:19 AM

Im building a new FG enclosure and i was wondering what sound deadening the interior of this would do.  Would it help the driver perform/sound better if the rear and side walls of the enclosure were sprayed with sound deadener, in one or two sub manuals that ive read they say to use sound absorbing material on the inside of bandpass and ported boxes, just curious as to what wuld happen if it was implemented in a sealed box

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Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*



Replies:

Posted By: realitycheck
Date Posted: February 24, 2006 at 8:05 AM
I personally wouldnt think it would do much for you. Since in a bandpass or ported you have sound coming out of the box. But sealed you shouldnt have to worry about that. Right?   Maybe im completely retarded. I really know nothing about stereo equipment.

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Learning the trade one fiberglass creation at a time!




Posted By: darthness
Date Posted: February 24, 2006 at 11:28 PM
i do know someone that has done it with hushmat.. i'm not entirely sure the out come but it was a good thing :P




Posted By: bellsracer
Date Posted: March 02, 2006 at 12:13 AM

Applying sound  dampening material on the inside of the enclosure creates two effects that results in better quality sound. First, it absorbs stray waves within the box reducing any phasing that might get out through the boxes walls.

The second result is the reduction of vibration of the walls themselves resulting in a stronger (well more resilient) box. Both of these effects results in reduced phasing from stray vibrations in the box and to make it a little bit more stable to keep the speakers properly in phase. If well done, then it can sound a couple of decibles louder. It gives the driver a little less fight to get better sound. (but don't expect a night/day difference)



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Never send your ducks to eagle school.
The difference between ordinary and extraordinary is that little extra.
The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.




Posted By: jlord16
Date Posted: March 02, 2006 at 2:00 AM

I figured it would be sumthing along those lines as most home theatre system cabinetes are internally deadended.  I tried it out and im almost finished the box, with the majority if it coated in brush on deadener.  Here are the pics, or just use the thrid link to see the whole photobucket album

https://i18.photobucket.com/albums/b110/jlord16/3227dec8.jpg

https://i18.photobucket.com/albums/b110/jlord16/a0559968.jpg

https://photobucket.com/albums/b110/jlord16/



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Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*





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