Lead In Von Schweikert Speakers


Why is there lead in some of the Von Schweikert speakers

Thanks
hap123
This is VS' way of bringing down costs. (eg shipping weight). The cavity in the speaker acts as a resonance trap. The lead shot is required in that it tightens the bass, and stabilizes the impedance curve.
Used for mass-loading. Helps tighten the bass. In the case of VS speakers, it helps a lot.