Lead.
It does not ring like steel and substantially increases the stand mass over sand, steel, pebbles, etc. Best would be lead filled with sand.
Sorbothane works very well in coupling the speaker and stand. The improvement in mid-bass detail is impressive.
Kitty litter is far too light to be of any use.
As far as disposal, almost any gun club can direct you to a reclamation center. Simply add a label on the back stating the stand is filled with lead shot in the event the owner is not the disposer.
It does not ring like steel and substantially increases the stand mass over sand, steel, pebbles, etc. Best would be lead filled with sand.
Sorbothane works very well in coupling the speaker and stand. The improvement in mid-bass detail is impressive.
Kitty litter is far too light to be of any use.
As far as disposal, almost any gun club can direct you to a reclamation center. Simply add a label on the back stating the stand is filled with lead shot in the event the owner is not the disposer.