Patent ID: 8175301

Claim:
A loudspeaker driver, comprising: at least one movable diaphragm having an open mouth defined by a terminal boundary residing at the outermost lateral edge of said diaphragm surrounding the entire interior surface area of said diaphragm; at least one driver arrangement residing lateral to and outside said open mouth of said one movable diaphragm and including a voice coil movable along a motion axis that is lateral to and outside said outermost lateral edge, said voice coil being suspended in a magnetic field, mechanically coupled to said one movable diaphragm and disposed lateral to said one movable diaphragm; and another movable diaphragm having an open mouth defined by a terminal boundary residing at the outermost lateral edge of said another movable diaphragm surrounding the entire interior surface area of said another movable diaphragm, wherein said motion axis is lateral to and outside said open mouth of said another movable diaphragm and said voice coil is mechanically coupled to said another movable diaphragm.