Patent ID: 7672472
Filing Date: 2010-03-02
Classification: H04R

Abstract:
1. An audio transducer comprising a rigid base, a pair of flexible, curved diaphragms each having a distal end and a proximal end, said curved diaphragms forming a pair of hemi-cylindrical lobes being substantially tangent to one another at their proximal ends, a pair of energy absorbent dampers appended to said base and connected to the distal ends of said curved diaphragms, a cylindrical cup located proximate the proximal ends of said curved diaphragms, said cylindrical cup housing a permanent magnet and a pole tip forming an annular gap at an open end of said cylindrical cup, a focusing magnet mounted to said pole tip opposite said permanent magnet and a voice coil wound on an aluminum form and placed within said gap for moving said pair of flexible curved diaphragms in response to audio frequency currents received by said audio transducer from a signal source.