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Speakers: Isolation?

Guys,

I’m trying to figure out the best method for setting down my stand mount speakers.

Currently I have a pair of hollow wooden cabinet stands ordered to measurement from eBay. These are pretty lightweight and do not use dense wood. They are laying atop thick butcher blocks acting as pliniths which are on a set of Mapleshade carpet heavyfooters (spiked). What’s the best way to effectively mount my speakers onto the stands?
madavid0
toddverrone's avatar
toddverrone
840 posts
 
Geoff - what's the formula for Fr? You posted it ages ago and I never wrote it down..
geoffkait's avatar
geoffkait
23,365 posts
 
@don1, I will try to type slower for you next time.

geoffkait's avatar
geoffkait
23,365 posts
 

toddverrone
Geoff - what’s the formula for Fr? You posted it ages ago and I never wrote it down..

Fr = 1/(2 pi) X square root (k/m), where k is total spring rate and m is total mass

For those who don't like equations use a stop watch to time the oscillations. That gives you Fr.
toddverrone's avatar
toddverrone
840 posts
 
Thank you! I love equations...


geoffkait's avatar
geoffkait
23,365 posts
 
In case it’s not obvious, the total spring rate k in the equation is the k for each spring times number of springs. That’s why it’s a good idea to minimize the number of springs and maximize the mass. Since isolation effectiveness is proportional to the Fr.

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