why 12mm on the baffle?
Printed From: Speakerplans.com
Category: Plans
Forum Name: MT122
Forum Description: Discussion / Questions about the MT122
URL: https://forum.speakerplans.com/forum_posts.asp?TID=59625
Printed Date: 27 March 2026 at 2:15am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: why 12mm on the baffle?
Posted By: keilamym
Subject: why 12mm on the baffle?
Date Posted: 22 November 2011 at 8:05pm
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hey guys, im just curious to know why baffle is made with 1/2 plywood while the rest of the speaker is 3/4 plywood... im doing a test build and completly forgot... atleast i hadn't installed them yet...
thanks in advance..
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Replies:
Posted By: cravings
Date Posted: 22 November 2011 at 8:16pm
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the original plan is for the baffle and the flare sections in 12mm. the baffle is a double so it ends up as 24mm..
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Posted By: keilamym
Date Posted: 22 November 2011 at 8:21pm
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darn good catch cravings.. i didn't realise the flare was 12mm also.. guess thats why its called a test build huh.. lol
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Posted By: cravings
Date Posted: 22 November 2011 at 8:33pm
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i built some earlier this year.. lots of thinking involved hehe
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Posted By: cravings
Date Posted: 22 November 2011 at 8:38pm
no harm at all in making the flare from thicker material.. once the internal size is the same you're good.
i drew it all out in CAD myself just to completely familiarise myself with all the parts.. they turn out marginally different to the dimensions on the plans i think.
worth learning some CAD for stuff like this.. but 2d cad can't work out the compound mitre angles for the vertical flare bits.. i think i just went at it with scrap bits and trial and error till i had them right (think it's 3.5° or something)
if you don't know what i'm on about there... you'll get there..
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Posted By: cravings
Date Posted: 22 November 2011 at 8:38pm
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or (sorry just keep adding bits to my posts)... when i say "it's 3.5°" ... i think that's what i set my saw at..
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Posted By: keilamym
Date Posted: 22 November 2011 at 9:51pm
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im goin thru the test build now... mistakenly didn't buy any 12mm ply so back to the store i go... thanks cravings.. how do you like the mt122? im planning to replace my 8 yamaha s115s with 6 MT122s
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