发明名称 Acoustically closed amplifier
摘要 To eliminate the feedback risk and promoting a natural sound impression, a low-power instrument amplifier is installed in a housing closed on all sides in a sound-tight manner, together with a monitoring microphone. The arrangement contains an additional equalizer for influencing the sound.
申请公布号 DE3715931(A1) 申请公布日期 1988.11.17
申请号 DE19873715931 申请日期 1987.05.13
申请人 KOHL,PETER 发明人 KOHL,PETER
分类号 H03F13/00;(IPC1-7):H04R3/02 主分类号 H03F13/00
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