Professional power amplifier - the role of power amplifier in audio.ktv home audio

　　The function of the power amplifier is to amplify the weak signal from the audio source or the pre-amplifier to promote the speaker to play. The role of a good sound system amplifier is indispensable.

　　Professional power amplifier is the largest family of all kinds of audio equipment. Its function is to amplify the weaker signal input by the audio source equipment and generate enough current to promote the speaker to reproduce the sound. Due to the consideration of power, impedance, distortion, dynamics, as well as different use ranges and control and adjustment functions, different power amplifiers have different internal signal processing, circuit design and production processes.

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

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

　　3. Audio signal amplification equipment (pre-stage power amplifier, post-stage power amplifier, digital power amplifier and other analog power amplifiers, equipment);

　　4. Sound restoration equipment (full-range speakers, ceiling speakers, sound columns, line array speakers, array speakers, tweeters, subwoofers, etc.),

　　Specifically, it includes power amplifiers, peripheral equipment (including compressors, effects, equalizers, exciters, etc.), speakers (speakers, speakers), mixers, sound sources (such as microphones, musical instruments, VCDs, DVDs) display equipment, etc. Add up a set. Among them, speakers are sound output devices, speakers, subwoofers, etc. A speaker includes three types of speakers: high, low, and medium, but not necessarily three.

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