Patent ID: 9432773
Filing Date: 2016-08-30
CPC Classification: H04R

Claim Text:
1. A speaker comprising: a diaphragm; a magnetic circuit; and a first damper, wherein a first sound conduit tube and a second sound conduit tube, each of which provides a connection between a space formed on a side including the magnetic circuit with respect to the diaphragm and a space exterior to the speaker, are formed in the magnetic circuit, wherein a peripheral portion of the first damper is disposed directly on a surface of the magnetic circuit so as to cover an opening of the first sound conduit tube, wherein the first damper does not support the diaphragm, wherein a first acoustic impedance provided by the first sound conduit tube and the first damper differs from a second acoustic impedance provided by the second sound conduit tube of which an opening is not covered by the first damper.