Speaker Stands Filled With Kitty Litter? TRUE???

Don’t tap on them whilst music is playing.

Obviously. But isn’t that a test as to an indication of the mechanical transmission of sound through the support?

OK, here’s the theory. The most rapid evacuation of energy out of the physical system occurs when there are no soft materials involved to slow or constrain that flow of energy out of the system. Yes, I know what you’re thinking: But wouldn’t the softer materials damp resonances? Same goes for any support of components like say, granite. If it makes a ringing sound when you strike it with a hammer don’t strike it with a hammer, for goodness sakes.

But if it rings when you strike it, wouldn't it also ring in some way at certain frequencies? I dumped my metal rack for concrete blocks and was stunned at the difference. Improved solidity and blackness with piano notes seemingly more stable.