Abstract
An improved mid to high-frequency loudspeaker of the type having a central dome diaphragm having an outer periphery, and in one embodiment an outer ring-radiator diaphragm portion defining an inner periphery and an outer periphery, the ring-radiator diaphragm being attached at its inner periphery to an armature voice coil assembly and at its outer periphery to a diaphragm chassis in a first plane. The central diaphragm portion is attached at its outer periphery to either the inner periphery of the outer ring-radiator diaphragm or the voice coil armature, and the improvement comprises axially-located stabilizing means attached to the central diaphragm portion, or alternatively a central stabilizing framework, in a second plane parallel to the first plane and that is of sufficient distance from the first plane to provide leverage sufficient to stabilize the diaphragm to minimize rocking, allow improved alignment of the voice coil allowing tighter tolerances between the voice coil and magnet assembly, thus improving performance and minimizing distortion.
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