Damper for speaker
Diaphragm for a capacitance type loudspeaker
Diaphragm structure for a transducer
Distortion reduction in loudspeakers
Dome speaker with a diaphragm having at least one elongated cut-
Double ended field coil actuator
Dual coil drive with multipurpose housing
Dual voice coil sound reproducing device
Dynamic loudspeaker for producing high audio power
Dynamic microphone