This Roland M - 400 48 - channel live digital mixing console comes with a correct power supply. However, be aware that there are a few slow faders.

Using this Roland M - 400 mixing console is quite straightforward. First, connect it to the correct power supply provided. Then, you can start adjusting the channels to get the sound you want. When using, pay attention to those slow faders. Don't push or pull them too hard as it might cause further issues. For maintenance, keep the console in a dry and clean place. Regularly dust it off with a soft cloth. If you notice any other problems, it's best to consult a professional.