Play sand mixed with small gauge lead shot should do the trick nicely. The differing density of the two materials mixed together deaden the sonic signature of the rack without emphasizing or de-emphasizing any part of the frequency band thus not allowing the stand to have a sonic signature of its own.
what type of sand to use?
if one plans on filling their stereo racks legs with sand,,,is there a type of sand to use?
thx
thx