where does one buy leadshots for loading spkrs?

Find a shooting range or gun store in your area. The shot comes in various sizes. I would get the smallest (more dense) that they have. It usually comes in a 25lb bag and is not cheap. You'll be surprised at just how small a 25lb bag is!

The Arros are pretty small (that's an understatement) so you probably won't need too much to fill the compartment. I would DEFINITELY go with the shot instead of sand. Since these are floor-standers and the fill material is actually going INSIDE of your speakers, I wouldn't mess around with sand at all. The granuals are too fine and could find their way into your speakers.

Think about going to the beach. The sand finds its' way into every orophus. Don't mess with it!

ALWAYS wear rubber gloves when handling lead. It is toxic and is absorbed through the skin. Don

If you are really concerned with toxicity, there are dive shops that sell copper coated lead as ballast for scuba divers. I am not certain about size choices, but you would certainly have the ability to add and remove at will, without risk to yourself or others.

Curtis- Checkout www.starsound.com. They have a product called Micro-Fill that is purported to be superior to standard fill materials. I've ordered some to fill an equipment stand. You might find it an interesting alternative as well. Good luck.

Sand from your local wall mart will work well too.