Lead Shot Substitute for Loading Speaker Cabinets?

At Larry Staples {original to LSA}house one evening who had worked with Von Schweikert. We removed the shot from his prototype speakers under test. Replaced with direct coupled Audiopoints. Less dark more speed and a much more dynamic stage. He never used fill material again that I know of. Tom

True Tom.
If anyone has the ability to find this--real wool stuffing is remarkable. It may sound strange, but in the old days, Bud Fried, (Irving M. Fried) used real wool in his IMF's and the results were outstanding. Enough so, that in developing the LSA Statements, I substituted real wool for the inexpensive poly material to really great effect.
For those of you who really enjoy a natural sound, try it. Larry

I am in California and found lead shot at gun stores however it was so expensive I decided to try some substitutes. I ended up using Daisy BB's. If I was to do it again, I also would consider using good ol pennies.

Csmgolf:

The dust from silica sand is toxic (this is not new news).

This said, I've used and preferred it in speakers (over lead shot and shot/sand mixtures).

Used a damp paper breathing mask when working with it and performed the work outdoors.

If you couple the speakers properly then you don't have to fill anything, worry about toxic abuse or the dark slow muddy sound of over damping a circuit or a speaker. Tom