VIBRATION REDUCTION MOVING COIL SPEAKER

A moving coil speaker may comprise a frame, a magnet assembly fixedly mounted to the frame and having a central axis, first and second annular gaps defined by the magnet assembly and concentrically disposed about the central axis, a voice coil at least partially received within the first annular gap, a cone coupled to and driven by the voice coil, a secondary coil at least partially received within the second annular gap, and a mass coupled to and driven by the secondary coil. When variable electrical audio signals are sent from an audio signal source respectively through the voice coil and the secondary coil, the coils and their respectively associated cone and mass reciprocate back and forth in opposite axial directions, with the reciprocal movement of the cone being counterbalanced by the reciprocal movement of the mass. 动圈扬声器可包括框架、与框架固定安装并具有中心轴的磁铁总成、由磁铁总成限定并围绕中心轴同心设置的第一和第二环状间隙、至少部分地容纳在第一环状间隙内的声音线圈、与声音线圈耦合并由声音线圈驱动的圆锥体、至少部分地容纳在第二环状间隙内的次级线圈以及与次级线圈耦合并由次级线圈驱动的质量块。当从音频信号源发送可变电音频信号分别通过声音线圈和次级线圈时，所述线圈及其分别相关联的圆锥体和