发明名称 Tri-chamber speaker box
摘要 A speaker box with improved low frequency response. Three chambers of specified proportion are provided which allow vibration of both front-cone and rear-cone sound waves projected from an internally installed low frequency speaker. Housing is provided for one or more higher frequency speakers, further providing rear covers to protect the speakers from low frequency sound wave interference. Ports are also provided for rear-cone sound wave emission.
申请公布号 US5647012(A) 申请公布日期 1997.07.08
申请号 US19960661019 申请日期 1996.06.10
申请人 HAN, SANG WU 发明人 HAN, SANG WU
分类号 H04R1/24;H04R1/28;(IPC1-7):H04R25/00 主分类号 H04R1/24
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