1. Unreasonable configuration of speakers and power amplifiers Many speakers believe that the excessive output power of the power amplifier is the cause of damage to the tweeter unit. Actually, it's not. In professional settings, speakers can generally withstand large signal impacts twice the rated power, and can instantly withstand peak impacts four times the rated power without any...

A sound system is composed of many independent sound units, such as a tuner, speakers, equalizer, LD or VCD player, and AV amplifier. These units need to be plugged into the 220V AC power plug board. Some people, for the sake of convenience and convenience, turn off the power supply by unplugging the plug when shutting down; When the power is turned on, everything is powered on as soon as the p...

1. Line inspection According to the system circuit diagram, carefully check the circuit connections and confirm that the circuits are functioning properly. 2. Setting the initial state of the device Set the amplifier input to the minimum and set the input/output knobs of all peripheral devices to the 0 decibel position or the middle position. Power on in the order from the fro...

1、 Visual inspection method The visual inspection method is to perform it immediately after disconnecting the power supply. Without the use of instruments or meters, one can make judgments based on intuitive sensations by utilizing four sensory characteristics: visual, auditory, olfactory, and tactile. This inspection method may have lower accuracy, but it is faster. The intuitive inspect...