发明名称 Midrange loudspeaker driver
摘要 A midrange loudspeaker driver of the cone diaphragm and magnetic coil type having a reflection free zone immediately behind the diaphragm and within the driver to significantly reduce internal reflections of the diaphragm's rear waves resulting in improved clarity and transparency of sound.
申请公布号 US5073948(A) 申请公布日期 1991.12.17
申请号 US19890418506 申请日期 1989.10.10
申请人 VANDERSTEEN, RICHARD J. 发明人 VANDERSTEEN, RICHARD J.
分类号 H04R1/28;H04R9/06 主分类号 H04R1/28
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