Patent ID: 9208759
Filing Date: 2015-12-08
Classification: G10D,H04R

Abstract:
1. A compound resonance driver (CRD) for improving tonal qualities of a drum or other membrane, the CRD comprising: a) an inner flex ring comprising a circular component, the circular component comprising two hinges and a plurality of magnets; b) a boom CRD comprising a fixed circular component the fixed circular component comprising a plurality of magnets in orientation complementary or attracted to the magnets of the flex ring; c) the fixed circular component having a first side attached to an adhesive ring, outside ring, a foam ring and a center ring; d) the fixed circular component having a second side attached to a second outside ring and a second center ring with the second center ring attached to a ring containing magnets and the ring containing magnets is attached to a neoprene gasket.