Audio speaker utilizing an unanchored magnet for primary...

Audio speaker with graduated voice coil windings

Audio transducer

Audio voice coil adaptor ring

Audio voice coil adaptor ring

Baffle vibration reducing

Bass reproduction speaker apparatus

Bi-directional loudspeaker

Bipolar speaker

Body-sensible swinging and vibrating apparatus

Cap and center pole apparatus and method of coupling

Cap and center pole apparatus and method of coupling

Case for containing electrical instrument

Ceramic metal matrix diaphragm for loudspeakers

Ceramic metal matrix diaphragm for loudspeakers

Ceramic metal matrix diaphragm for loudspeakers

Chord-like vibration loudspeaker

Coil for an electroacoustic transducer

Combined receiver and speaker

Compact high performance speaker