In a professional sound system, attention should be paid to the sequence of starting and shutting down. Turn on the front equipment such as audio source before turning on the power amplifier; When shutting down, the power amplifier should be turned off first, and then the front equipment such as audio source should be turned off. If the audio equipment has a volume knob, it is best to turn the volume to a minimum before turning it on and off. The purpose of this is to reduce the influence on the speaker when it is turned on and off.

Switching sequence

Turn on the front equipment such as audio source before turning on the power amplifier; When shutting down, the power amplifier should be turned off first, and then the front equipment such as audio source should be turned off.

Volume knob

If the audio equipment has a volume knob, it is best to turn the volume to a minimum before turning it on and off.

Real-time plugin

It is strictly forbidden to plug in the signal plug with electricity. In order to avoid impact and damage to the machine or speakers.

Start correctly

When you need to use professional audio equipment, turn it on correctly as required, play music after turning it on, and observe whether the indicator light tuned by the power amplifier works normally. After playing for a period of time, touch the power amplifier properly with your hand to see if it is overheated.

Abnormal sound

If the sound reinforcement equipment makes abnormal sound during operation, it should immediately turn off the power supply and stop using it. And please experienced qualified maintenance personnel for maintenance. Don't open the machine without authorization, so as not to cause greater damage to the machine or cause electric shock accidents.