This Roland M-400 digital mixing console runs on firmware 2.321. It comes with the correct power supply for reliable operation. However, there are some minor fader motorization issues to be aware of.

Using the Roland M - 400 is easy. First, make sure you connect it to the correct power supply that comes with it. Once powered on, you can start adjusting the channels according to your audio needs. When using the faders, be gentle as there are some motorization issues. As for maintenance, keep it in a dry and clean environment. Regularly check the power supply for any signs of damage. If you notice the fader issues getting worse, it might be a good idea to contact a professional for further inspection.