J12 Lite Damping

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nola50
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Joined: Sun May 14, 2006 11:58 pm
Location: Baton Rouge, LA

J12 Lite Damping

#1 Post by nola50 » Fri Jan 14, 2022 12:44 pm

See the attached photo for my concept for damping in my J12 Lites. I'm using spray contact cement. I'm not covering the ports.

Is it better to line the sides with foam or rather than install covering the ribs as I am considering?

What about the top and bottom of the cabinet- solid or just a bit?

I plan on covering the back left and right sides, not the middle. The crossover will be mounted on the cabinet back.

Comments greatly appreciated!

Thanxabunch!
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Seth
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Re: J12 Lite Damping

#2 Post by Seth » Fri Jan 14, 2022 1:17 pm

Hey nola, nice build :thumbsup:

Have you taken a look at the Sketchup? It shows placement of damping material.
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
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nola50
Posts: 301
Joined: Sun May 14, 2006 11:58 pm
Location: Baton Rouge, LA

Re: J12 Lite Damping

#3 Post by nola50 » Fri Jan 14, 2022 2:09 pm

Oh, my! I forgot about that! I got it!

Many thanks!!!

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Bill Fitzmaurice
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Re: J12 Lite Damping

#4 Post by Bill Fitzmaurice » Fri Jan 14, 2022 2:30 pm

The main concern is to cover any surface that's line of sight with the cone, unless it's very narrow, like the braces.

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