The foundation of Bozak loudspeaker design was the unique Bozak cone. The woofer cone was molded from a slurry containing paper pulp, lamb's wool and other ingredients in a secret process. The cone was made thicker at the center, becoming progressively thinner toward the periphery. An additional doping of the inner area further strengthened the cone center. The result was a cone with 'variable density' from center to rim with virtually no breakup or standing waves, the major sources of distortion in more conventional paper cones.