1. Audio source part
Mainly provide audio signals, such as microphones, musical instruments, music players, etc.
2. The mixer part
Now they are all digital mixers. The equalizer, compressor, noise gate, and effects are all in the digital mixer. The mixer processes the input signals once, and then mixes them together to control the playback content of each speaker.
3. Processor
It is responsible for processing the audio signals mixed by the mixer, and processing these audio signals according to the system and on-site conditions, so that the speakers can better reproduce these audio signals.
4. Power amplifier and speakers
The power amplifier and the speaker are responsible for energy conversion. The power amplifier provides energy for the audio signal and drives the speaker to vibrate to play the sound.
Therefore, the processor is in the middle of the professional audio system and plays a role of linking the previous and the next.