Patent ID: 9628903
Date: 2017-04-18
CPC Classifications: H04R

Claim:
1. An electro-acoustic transducer, comprising: a diaphragm; a magnet assembly comprising a magnet and a back plate having a central region at which the magnet is coupled, the back plate further having a peripheral region about an outermost periphery of a bottom region of the magnet, the back plate further comprising a plurality of first vents extending through the peripheral region of the back plate and positioned about the outermost periphery of the bottom region of the magnet, the diaphragm generating sound during a movement of the diaphragm relative to the back plate; a printed circuit board comprising at least one second vent at or near a periphery of the printed circuit board; and a cavity between the printed circuit board and the back plate that separates the plurality of first vents from the at least one second vent.