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In the Forum: Audio Discussions
In the Thread: Mastodont DIY Rack: Wall Mount?
Post Subject: Lead FootPosted by Paul S on: 7/25/2013
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Here is an idea from Walker Audio that actually makes some sense in some cases:

http://walkeraudio.com/?product=valid-points-resonance-control-kit

To be sure you understand, I am NOT suggesting you spend anywhere near 625USD for something like this.  Rather, take a look and DIY, to suit.

I did not bother to check this time, but the brass "pucks" used to be filled with Pb, and one might use that "super-condensed" felt between the puck and the wood floor.

No, this does not (much) change the "pendulum effect". However that might be addressed by simply attaching the rack to the walls, perhaps with something "pneumatic".  Obviously, anything short of "no movement" not only reduces amplitude, but in this case it also (likely) raises the resonant frequency, because it "shortens the arc".  Depending on the original source/impetus for the movement, shortening the arc to the "right length" might actually effectively dampen it considerably via "feedback". Of course, this pendulum cuts both ways, and augmentation is also theoretically possible.  But what the hell,  you have to actually, physically try any solution, in any case.

Best regards,
Paul S

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