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jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
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| Posted: Mon Sep 08, 2014 3:41 pm Post subject: Killing fan noise inside the PJ. |
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Has anyone ever considered using Dynamat to line the inside of the PJ on the hosing to kill fan noise ? It works very well inside of cars to deaden road noise. Very well. It would be an easy install and wouldn't cost a fortune as I have a source for a generic version.
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Mon Sep 08, 2014 3:49 pm Post subject: |
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It's been discussed several times, Jeff. I have no idea where the thread is, but I think Craig may have even been talking about doing it with his G90. Do a search for dynamat and/or a search for dynamat on my user name or Craig's, and you should be able to find one of the threads I'm talking about. I think most of the noise is from the fans and air turbulence, and less from the resonating case, but if you have a cheap source for some generic material, I'd say it can't hurt and would be worth a try.
SC
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Sep 08, 2014 4:58 pm Post subject: |
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Guys
You would need to identify the nature of the noise, which could vary depending on the fans used. In a Marquee the problem is cheap bearings in the lvps fans which sound like pepper grinders after a few thousand hours; best to replace those. As to other projector makes, each may pose a unique situation.
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jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
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| Posted: Mon Sep 08, 2014 5:19 pm Post subject: |
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My G90 is stock. The fans aren't super loud I just want to lessen the noise level as much as possible. I am not much of a carpenter any attempt making a hushbox by me would probably look sad to say the least.
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Sep 08, 2014 9:01 pm Post subject: |
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Guys
Projectors use six or seven hundred watts from the mains, and most of that is given off as heat, so take care not to impede or reduce air flow or you may end up baking something.
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jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
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| Posted: Mon Sep 08, 2014 9:17 pm Post subject: |
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my plan was to just put a layer of dynamat on the inside of the case. I wouldn't think it would raise the temp as my case doesn't seem to get warm.
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