Using this Lexicon MPX110 is easy. First, make sure you have your own suitable power supply. Connect your audio sources to the appropriate input ports of the processor. Then, you can start adjusting the settings according to your needs to get the desired effects. Remember, since it doesn't come with a power supply, use a compatible one to avoid any damage. For maintenance, keep it in a dry and clean place. Regularly check the connection ports to ensure they are clean and in good condition. If you notice any issues, stop using it immediately and seek professional help.