Totem Sttafs can be filled with sand, shot, or other material. There is a cavity at the bottom specifically for this purpose. I think all of the Totem tower speakers may have this provision. When I had my Sttafs, I filled them with 5 lbs of lead shot.
Also. my Von Scweikert VR3's have a fill cavity in the Mid/Tweeter module - but this is up top, not on the bottom.
Also. my Von Scweikert VR3's have a fill cavity in the Mid/Tweeter module - but this is up top, not on the bottom.