Scientific maintenance of audio equipment is the key to prolonging its life. Here are some basic common sense of daily maintenance:

1. The normal working temperature of audio equipment should be 18℃～45℃. If the temperature is too low, the sensitivity of some machines (such as electronic tube machines) will be reduced; if the temperature is too high, it will easily burn out the components, or cause the components to age prematurely. In summer, special attention should be paid to cooling down and maintaining air circulation.

2. Audio equipment should not be exposed to direct sunlight, and should also be kept away from heat sources, such as heaters.

3. After the audio equipment is used up, the function keys should be reset. If the function key is not reset for a long time, its pulling button spring will be under force for a long time, which will easily cause malfunction.

4. Before turning on and off the audio power supply, turn the volume potentiometer of the power amplifier to the smallest, which is an effective protection method for the power amplifier and speakers. At this time, the power amplification of the power amplifier is almost zero, at least in the case of misoperation, it will not cause harm to the speaker.