Abstract: A transducer comprising a pair of spaced magnets at least partially forming a tunnel having a central axis. A coil having a first and a second side wall and an upper and a lower wall at least partially forms the tunnel. A reed having a central portion extends through the tunnel. The reed has a stationary end, a deflection end, and a tip portion which lies at least partially between the magnets, wherein the reed is mounted for deflection towards or away from the respective magnets.

Abstract: A receiver includes a housing having an interior, a diaphragm assembly disposed within the housing, a motor assembly disposed within the housing and a linkage assembly coupling the diaphragm assembly and the motor assembly. A support structure joined to the diaphragm or the motor assembly or to both the diaphragm and the motor assembly. The support structure includes a cooperative surface portion engaging the housing to position and retain the joined diaphragm assembly or motor assembly within the interior. A corresponding method of manufacture employs a support structure for positioning components of the receiver in the housing. A receiver may also incorporate a microphone to through pass acoustic signals external to the receiver housing through the receiver. An earphone assembly may incorporate a receiver as described.

Abstract: A transducer assembly may include a first transducer having a first front volume, a first back volume and a first port acoustically coupled to the first front volume; and a second transducer having a second front volume, a second back volume and second port acoustically coupled to the second front volume. The first front volume and the second front volume are acoustically coupled to increase the effective back volume of both the first transducer and the second transducer. An optional signal processing circuit may be used to control the output of the first transducer based upon a signal received from the second transducer.

Abstract: A transducer assembly includes at least one transducer. The transducer is disposed within a holder assembly. In this regard, the holder assembly is formed to have an interior and an exterior with the interior having a size to receive and retain the transducer. The exterior of the holder assembly is configured to be received and retained within a recess of a device.