Rerurn to Romy the Cat's Site


In the Forum: Audio Discussions
In the Thread: Mastodont DIY Rack: Wall Mount?
Post Subject: Ad hoc fixesPosted by N-set on: 12/3/2013
fiogf49gjkf0d
 Paul S wrote:

Again, you might gain something by fastening the rack to adjacent walls and adjusting the tension and/or damping of those connections. In any case, you'll want to prevent swaying of a TT support, and likely a CD transport, as well, and it might even damp some noises that enter the frame from the floor, just like standing there and poking it with your finger.



Paul, instead of ad hoc fixes, I'd prefer to understand what's going on and find a real solution.

What I have now are low lying but long lasting frame vibrations, caused most probably by the added
mass to the profiles, esp. te sand+shot in the vertical columns. Quite counterintuitive, the sand-filled profile vibrations feel
also like higher amplitude than those filled with lighter stuff,
which should not be the case as higher mass should displace less given the same excitation.
What feels right ot me by knuckling is a middle path between light mass (perlite) and high mass (sand+shot),
achieved in the horizontal members by the perlite ore. I'm mentally preparing myself for exchanging
the sand for the perlite ore in the colums to see what happens.

Cheers,
N-set

Rerurn to Romy the Cat's Site