Abstract: The present invention relates to a suspension member for suspending a moveable piston structure of a transducer, the suspension member comprising tolerance compensation means comprising an elastomeric material, said tolerance compensation means being formed as a structure extending in a direction so as to form an acoustical seal between a first chamber and a second chamber.

Abstract: Apparatus includes a housing, a substrate provided within the housing and including a first surface oppositely disposed to a second surface, an earpiece speaker module provided within the housing and including an air displacement component that is configured to move upon application of an electrical signal, the air displacement component having a front surface and a back surface, an acoustic cavity defined within the housing, and a front volume adjacent the front surface of the air moving component. The housing includes an earpiece aperture which is coupled to the earpiece speaker module by an acoustic channel, wherein the first surface of the substrate faces generally towards the earpiece aperture. The second surface of the substrate faces the back surface of the air displacement component. A rear volume is provided between the second surface of the substrate and the earpiece speaker module. The acoustic cavity is coupled via a coupling channel to the rear volume.

Abstract: The present invention relates to a suspension member for suspending a moveable piston structure of a transducer, the suspension member comprising an attachment region comprising an elastomeric material, wherein at least part of the attachment region is shaped in a manner so as to be able to attach to a fixed portion of the transducer in an adhesive free manner. Moreover, the present invention relates to a suspension member comprising an integrated tolerance compensation means.

Abstract: Apparatus includes a housing, a substrate provided within the housing and including a first surface oppositely disposed to a second surface, an earpiece speaker module provided within the housing and including an air displacement component that is configured to move upon application of an electrical signal, the air displacement component having a front surface and a back surface, an acoustic cavity defined within the housing, and a front volume adjacent the front surface of the air moving component. The housing includes an earpiece aperture which is coupled to the earpiece speaker module by an acoustic channel, wherein the first surface of the substrate faces generally towards the earpiece aperture. The second surface of the substrate faces the back surface of the air displacement component. A rear volume is provided between the second surface of the substrate and the earpiece speaker module. The acoustic cavity is coupled via a coupling channel to the rear volume.