Details that need to be paid attention to in the adjustment and setting of professional audio equipm

　　1. The connection between the professional audio source playback equipment and the mixer: Various CDs, DVDs, MDs, decks, etc. should be connected to the mixer with the matching wires, generally inserted into the high-resistance port.

　　2. Dynamic microphones, condenser microphones, etc. are generally plugged into the XLR low-impedance port. However, the signal of the wireless microphone is amplified by the receiver, and it is necessary to experiment to know which port is suitable for insertion.

　　3. In principle, the signal output by the band and other equipment should be inserted into the high-impedance port, but if the line is long and the interference is large, it can also be inserted into the low-impedance signal port. You can experiment with other audio source signals to see which port is suitable for input. If there is a problem with the lines input to the mixer, it will be very troublesome. The most fear is that the line is in poor contact. It is not that there is no sound, but it is intermittent and accompanied by noise. Therefore, it is best for the sound engineer to make these signal lines by himself. Connect, make sure you have a bottom line, so as to avoid failures to the greatest extent.

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