Comes with the right power supply. It has minor flaws like some rust and cosmetic scratches.

To use this QSC ISA300Ti two - channel power amplifier, first make sure it's connected to the correct power supply. Just plug it in and switch it on. When using, avoid placing it in a damp or dusty area. For maintenance, wipe it with a dry cloth regularly to keep it clean. If you notice the rust getting worse or any other issues, it's a good idea to have it checked by a professional.