using mirrors
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=119177
Printed Date: May 11, 2025 at 8:15 AM
Topic: using mirrors
Posted By: 2fast4u2
Subject: using mirrors
Date Posted: January 08, 2010 at 10:01 AM
How much force is needed to shatter a mirror inside of an enclosure???....i mean.....i am building 2 same size enclosures(15x15) then gonna have an closed chamber showin off subs in the middle of the two boxes....i wanna put a mirror at the back of the closed chamber...will the force of the subs shatter that mirror????or what do i have to do with the mirror to make it last??? any comments are welcome.....thanx ------------- If it has tits or tires it will give ya problems.....
Replies:
Posted By: 2fast4u2
Date Posted: January 08, 2010 at 10:02 AM
sorry guys this is a 97 f150 extended cab full back seat taken out using FULL extended cab area
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If it has tits or tires it will give ya problems.....
Posted By: oldspark
Date Posted: January 08, 2010 at 7:04 PM
I wouldn't go more than 30% higher than the mirror's rated shattering force - that's the usual design margin.
You could go higher depending on the mounting method and hence maximum "air pocket" dimensions behind the mirror.
Just check of the mirror is rated in RMS or peak etc.
You can then convert you max speaker SPL (and compensate for enclosure attenuation or concentration etc).
Posted By: squires500
Date Posted: January 09, 2010 at 7:11 AM
just place a mdf board behind the mirror and it wont break, in essence the mirror is just glass, the alternatives if u cant place something behind it is to get a mirror made out of like 7mm glass which will be strong, or get a plexi glass mirror. id be amazed if you managed to shatter a mirror that was mounted properly. and not using something like a resonate frequency
Posted By: 2fast4u2
Date Posted: January 09, 2010 at 9:43 PM
okk guys tryin it tommorrow...ill let u know .......i am just goin with the flow with this box design not alot of planning so hope it work ok... ------------- If it has tits or tires it will give ya problems.....
Posted By: squires500
Date Posted: January 10, 2010 at 3:57 AM
good luck, i suggest you plan twice and make one its easier to change a drawing then a box
Posted By: blackcivichatch
Date Posted: January 21, 2010 at 12:16 PM
At Auto stores they have a plastic mirror sheet...
May not be what you're looking for, but it wouldn't shatter...
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UNLABELED Custom Car Club President
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