Home Speaker Asylum

General speaker questions for audio and home theater.

RE: Filling Skylan stands, how much and what?

The discussion is interesting and the reports valuable. But I wonder why sand and kitty litter and rice each make a different sound. Once the center rod and posts are damped, which all fillings do, what explains why nearly-identical fillings have a different sound?

For that matter, what's the basic theory under all this? Is a stiff stand or looser stand better? Is the goal to allow the speaker to operate independently, or is it to drain away excess vibration? Do spikes isolate speaker from stand (and stand from floor), or are they designed to transfer unwanted energy from one to the other? What precise effect does it have on the speaker if the stand vibrates sympathetically, or doesn't vibrate at all?

This is no criticism of the comments here or the listening experiences reported -- but about the weakness of the theories I've seen advanced online and in print. Even manufacturer's websites say little if anything about this. I'd find the whole concept more convincing if there seemed to be some hard science behind it.

Maric


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