Patent ID: 8983104
Filing Date: 2015-03-17
Classification: H04R

Abstract:
1. A speaker comprising: a vibrating member supported by a support body, the support body having an outer peripheral wall; a voice coil configured to apply a vibrational force to the vibrating member; a magnetic field generating portion configured to provide a magnetic field to the voice coil, wherein the vibrating member is ring-shaped and has an internal peripheral edge and an external peripheral edge, and wherein the voice coil applies the vibrational force at least to the external peripheral edge of the vibrating member; a single control member located radially inwardly from the outer peripheral wall of the support body; the control member formed as a single contiguous ring suspended above a front portion of the vibrating member by a plurality of radially oriented support ribs, and located in a sound-generating direction relative to the vibrating member, the control member having a face inclined along a single direction and tapering along a center of the sound-generating direction; the control member forming a first unobstructed pass space formed within and surrounded by an inner peripheral circumferential edge of the control member; the control member forming a second unobstructed pass space formed at an area outside an outer peripheral circumferential edge of the control member, the first and second pass spaces configured to pass therethrough, sound waves generated by the vibrating member; and a cone-shaped equalizer disposed in concentric alignment with the control member and within the first pass space.