Using this dbx DriveRack PA+ system is easy. First, connect the power supply correctly to the system. Make sure the power source is stable. When using, set up the audio parameters according to your needs. To get the best sound effect, adjust the volume and equalizer gradually. As for maintenance, keep the system in a dry and clean place. Avoid exposing it to direct sunlight or high - humidity environments. If there is dust on the system, use a soft, dry cloth to wipe it gently. Do not use any harsh chemicals for cleaning. When not in use for a long time, turn off the power supply to save energy and protect the device.