What are the components of the stereo

　　1. Sound source equipment (DVD, CD, MP3, MP4, computer, mobile phone, microphone and other sound source output equipment);

　　2. Audio signal dynamic processing equipment (pressure limiter, effector, mixer, audio processor, equalizer and other audio signal processing equipment);

　　3. Audio signal amplification equipment (analog power amplifiers and equipment such as front stage power amplifier, rear stage power amplifier and digital power amplifier);

　　4. Sound reproduction equipment (full frequency speaker, ceiling speaker, sound column, linear array speaker, array speaker, tweeter, subwoofer, etc.),

　　Specifically, it includes a set of power amplifier, peripheral equipment (including pressure limiter, effector, equalizer, exciter, etc.), speakers (speakers, speakers), mixer, sound source (such as microphone, musical instrument, VCD, DVD) display equipment, etc. Among them, speakers are sound output devices, speakers, subwoofers, etc. A speaker includes three kinds of speakers, including high, low and medium speakers, three but not necessarily three.

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