Patent ID: 9277323
Filing Date: 2016-03-01
CPC Classification: H04R

Claim Text:
1. An audio speaker, comprising: two magnetically permeable plates in a parallel, spaced apart relationship; a diaphragm supported between the two magnetically permeable plates to define a front volume on a first side of the diaphragm and a back volume on a second side of the diaphragm opposite the first side; a first magnet assembly coupled to the two magnetically permeable plates and passing through a first opening in the diaphragm, the first magnet assembly including two magnets that are coupled with two like poles adjacent the diaphragm; a pleated first suspension ring that surrounds a portion of the first magnet assembly with a first end sealed to the diaphragm and an opposing second end sealed to one of the two magnetically permeable plates to separate the back volume from the front volume; and a first voice coil coupled to the diaphragm and surrounding the first opening in the diaphragm through which the first magnet assembly passes.