Comes with a proper power supply for reliable operation.

Using this dbx 2231 graphic equalizer is easy. First, connect it to your audio system using the appropriate cables. Then, plug in the included correct power supply to power it on. When adjusting the equalizer bands, start with small changes to hear how it affects the sound. Remember to keep the device in a dry and cool place. Avoid exposing it to extreme temperatures or moisture. For maintenance, simply use a soft, dry cloth to wipe the surface regularly. If you have any issues, check the connections first before seeking further help.