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Cabinet woes...


Fisheth
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So I've just got a new cab, which was making a farting noise when I played through it.

That has now been solved, but now my 2*15 is vibrating/resonating at louder volumes.

What could be causing it? Everything feels tightly put into the cabinet, so I'm not sure.

Edited, I don't know much about this cab, but it's a JCM800 Bass cabinet with two fifteen inch Celestion in it,
don't know more than that.

Edited by Fisheth
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From your comment that all screws are tight and speakers are securely fixed to baffle then my first thought (without knowing the cab make, construction material, bracing and dimensions) would be insufficient bracing. Get someone to play loudly through cab to induce the vibrations. Use your hands to find and damp the offending panels. Obtain some scrap 3" strips (approx) of 12mm (or thicker) mdf or ply or 2" x 1" (or an old broom handle). Cut these to provide a tight internal cross bracing where the vibrations occur. This shows the idea (courtesy of BFM) [url="http://www.billfitzmaurice.info/images/Templates/bracing.jpg"]http://www.billfitzm...tes/bracing.jpg[/url]. It might provide the solution, from practical experience it does make a difference.

Edited by 3below
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[quote name='3below' timestamp='1487798493' post='3243101']
From your comment that all screws are tight and speakers are securely fixed to baffle then my first thought (without knowing the cab make, construction material, bracing and dimensions) would be insufficient bracing. Get someone to play loudly through cab to induce the vibrations. Use your hands to find and damp the offending panels. Obtain some scrap 3" strips (approx) of 12mm (or thicker) mdf or ply or 2" x 1" (or an old broom handle). Cut these to provide a tight internal cross bracing where the vibrations occur. This shows the idea (courtesy of BFM) [url="http://www.billfitzmaurice.info/images/Templates/bracing.jpg"]http://www.billfitzm...tes/bracing.jpg[/url]. It might provide the solution, from practical experience it does make a difference.
[/quote]

Edited the OP for more info,

I'll try this tomorrow.

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