1. Sound source (music playback device, pickup device, i.e. microphone)

2. Control equipment (analog mixer, digital mixer, digital audio media matrix, AV digital management center)

3. Peripheral devices (processors, equalizers, voltage limiters, frequency dividers, exciters, delayers, effectors, feedback suppressors)

4. Restore devices (speakers or speaker systems, power amplifiers, i.e. power amplifiers).

5. Connection cable (The above equipment consists of various types of wires and cables connected in series to form a unified sound system for use.)

Sound equipment has high requirements for users, with a strong understanding of the functions and usage of various equipment. It has professional theoretical knowledge, accurate listening ability, strong debugging skills, and emphasizes fault diagnosis and troubleshooting ability. The difficulty lies in designing and debugging the system.