I'd stay away from the lead. However it is still used in some commercial and industrial paints since it's not banned 100%. Lead emits fumes when being heated like in soldering however dust can be inhaled when pouring the shot into the the speakers and a very minute amount could be absorbed through the skin. The body can't distinguish the difference between lead and calcium, so the body uses it as if it's calcium. That's one of the reasons symptoms of lead poisoning take so long to develop. I used sand in my stand.
Usher CP-63XX owners, have you added Lead Shot?
I am awaiting my 6381's to arrive at the dealer this week, but am curious how many of you that own speakers from this line, have added either sand or lead shot? After looking at the prices of shot, it is quite a bit more expensive than sand, but should not be as messy. Did you notice any difference in sound quality, or are these speakers already heavy enough?
Thanks
Thanks