Edge support for a speaker apparatus comprising multiple ridges
Electric acoustic converter having a rear surface terminal
Electric-acoustic transducer having dual voice coil drivers
Electric-acoustic transducer having moving magnet and...
Electric-mechanical-acoustic converter and method for...
Electrical acoustic converter
Electrical/mechanical/sound converter and apparatus of...
Electricity-to-sound transducer
Electro-acoustic converter
Electro-acoustic dynamic transducer system for use in a loud...
Electro-acoustic micro-transducer having three-mode...
Electro-acoustic transducer
Electro-acoustic transducer
Electro-acoustic transducer
Electro-acoustic transducer and electronic device
Electro-acoustic transducer with resistance to shock-waves
Electro-dynamic planar loudspeaker
Electroacoustic converter
Electroacoustic transducer
Electroacoustic transducer