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Low noise amplifier for microphone
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オーディオ回路
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Phantom powered FET circuit for audio application
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Dispositif servant a convertir un signal electrique en un signal acoustique
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크로스오버 네트워크, 이를 이용한 멀티웨이 스피커 시스템 및 오디오 시스템과 크로스오버 네트워크의 주파수 분할방법
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Demodulation apparatus for digital audio amplifier
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一种新型扬声器双层弹波组件
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Audio-source wire capable of generating gain and removing noise
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