久久精品中文字幕第一页

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The components of a stereo

 Sound probably including power amplifier, peripheral devices (including pressure limit, effect, equalizer, VCD, DVD, etc.), NOIN no bluetooth stereo speakers, speakers, speakers) mixer, microphone, display devices, and so on added up to a set. Among them, the speaker is the sound output device, the horn, the low sound gun and so on. A loudspeaker contains high, low and medium speakers, three of which are not necessarily three.

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