Fiberglass vs. MDF

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jae-rome

Member - Posts: 25

Joined: January 12, 2003

Location: United States

Posted: February 10, 2004 at 2:14 AM / IP Logged

I know I just started building the sub enclosure out of MDF now I am contiplating on if I want to do fiberglass instead. Only thing I have heard negatively about fiberglass is that it resonates the sound too much. Just wondering if any of you have come across that problem or not

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: February 10, 2004 at 2:34 PM / IP Logged

1/2" of fibreglass is easily as strong as 3/4" of mdf. It however like glass and plexiglass is a highly acoustic reflective surface and should have some kind of dampening on it. A sprayable sound deadener or vehicle undercoating will work for this. A light amount of polyfill also may help out.

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Teamrf

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Joined: January 13, 2004

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Posted: February 10, 2004 at 3:11 PM / IP Logged

Yea most of the time people doing Fiberglass enclosures just glass the front part of it, and use MDF for all the other sides.

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jae-rome

Member - Posts: 25

Joined: January 12, 2003

Location: United States

Posted: February 10, 2004 at 3:21 PM / IP Logged

Ok thnks for that input guys, but I heard of people using dynamat in the enclosure. I heard a system that had that setup and it sounded like crap. But people tell me that the dynamat is better than using the polyfill.

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pureRF

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Joined: July 22, 2003

Location: United States

Posted: February 10, 2004 at 3:22 PM / IP Logged

I would def do glass if u want to, mostly becauseu will do it sometime if u want to right now. In my glass box i sprayed a Wal-Mart truck bed liner on the inside and i guess it helped because it sounds amazing.

dream it, build it, fiberglass it

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Fiberglass vs. MDF

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