Abstract: A balanced armature receiver including a motor with a yoke for retaining magnets and fastening to an armature are disclosed. The yoke includes a close-ended wall structure defining a passage through which an armature is extendable. The close-ended wall structure includes a plurality of wall portions interconnecting a plurality of folded corner portions, wherein a thickness of the plurality of wall portions less than a thickness of the plurality of folded corner portions.

Abstract: Two coils are wrapped in one of numerous different implementations. In one implementation, the two coils are wrapped about a portion of a bobbin that has at least three flanges. The first coil is disposed about a first portion of the bobbin between the first flange and the second flange, and a second coil is disposed about a second portion of the bobbin between the second flange and the third flange.

Abstract: Two coils are wrapped in one of numerous different implementations. In one implementation, the two coils are wrapped about a portion of a bobbin that has at least three flanges. The first coil is disposed about a first portion of the bobbin between the first flange and the second flange, and a second coil is disposed about a second portion of the bobbin between the second flange and the third flange.

Abstract: Coil bobbins for balanced armature receivers are disclosed. The balanced armature receiver bobbin includes a coil support member, at least two flanges, and a shoulder. The coil support member has an armature passage extending between a first end and a second end thereof. The flanges extending radially from the coil support member such that the first flange extends from the coil support member proximate the first end and the second flange extends from the coil support member proximate the second end. The shoulder extends from the first flange, with the first flange located between the shoulder and the coil support member. The shoulder has a plurality of conductive coil pads disposed on a bottom portion thereof.

Abstract: Coil bobbins for balanced armature receivers are disclosed. The balanced armature receiver bobbin includes a coil support member, at least two flanges, and a shoulder. The coil support member has an armature passage extending between a first end and a second end thereof. The flanges extending radially from the coil support member such that the first flange extends from the coil support member proximate the first end and the second flange extends from the coil support member proximate the second end. The shoulder extends from the first flange, with the first flange located between the shoulder and the coil support member. The shoulder has a plurality of conductive coil pads disposed on a bottom portion thereof.

Abstract: Two coils are wrapped in one of numerous different implementations. In one implementation, the two coils are wrapped about a portion of a bobbin that has at least three flanges. The first coil is disposed about a first portion of the bobbin between the first flange and the second flange, and a second coil is disposed about a second portion of the bobbin between the second flange and the third flange.

Abstract: An electroacoustic transducer includes an armature that is mounted for deflection between magnets where an elongated portion of the armature includes a protrusion on opposite sides thereof for limiting the deflection of the armature. The protrusions are arranged transversely with respect to the elongated portion of the armature. Among other advantages, deflection of the armature is limited to provide improved shock performance. In one example, the protrusions are located within a magnet zone of the electroacoustic transducer.

Abstract: An electroacoustic transducer includes an armature that is mounted for deflection between magnets where an elongated portion of the armature includes a protrusion on opposite sides thereof for limiting the deflection of the armature. The protrusions are arranged transversely with respect to the elongated portion of the armature. Among other advantages, deflection of the armature is limited to provide improved shock performance. In one example, the protrusions are located within a magnet zone of the electroacoustic transducer.

Abstract: A microphone assembly includes a housing having an interior with a front volume and a back volume. The housing has an acoustic input port coupling the front volume to an exterior of the housing. An acoustic sensor is disposed at least partially within the interior of the housing. At least a portion of the acoustic sensor is disposed at an interface between the front volume and the back volume. The acoustic sensor has an electrical signal output. A circuit board is disposed at least partially within the back volume of the housing and has a conductive member and an electrical contact. The circuit board also has a first portion carrying a first portion of the conductive member, and a second portion of the conductive member extending from the first portion of the circuit board toward the acoustic sensor. The second portion of the conductive member is electrically connected to the electrical signal output of the acoustic sensor.