internal sound deadening

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jlord16

Silver - Posts: 322

Joined: September 08, 2005

Location: Australia

Posted: February 24, 2006 at 6:19 AM / IP Logged

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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realitycheck

Silver - Posts: 751

Joined: September 09, 2004

Posted: February 24, 2006 at 8:05 AM / IP Logged

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.

Learning the trade one fiberglass creation at a time!

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darthness

Copper - Posts: 136

Joined: December 12, 2004

Posted: February 24, 2006 at 11:28 PM / IP Logged

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

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bellsracer

Silver - Posts: 703

Joined: January 14, 2006

Location: United States

Posted: March 02, 2006 at 12:13 AM / IP Logged

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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jlord16

Silver - Posts: 322

Joined: September 08, 2005

Location: Australia

Posted: March 02, 2006 at 2:00 AM / IP Logged

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

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

Clarion DB36MP

Infinity Kappa Perfect 10"

Respone 800w Mono

ALPINE MRP-F250

*Custom fabrications*

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internal sound deadening

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