I can run other units with a 9v PS. I even have a set-up that allows me to run a Mooer S10 Power Bank (a pedal-board Battery - 9/12/15/18v) as the PS. It supplies a 2A max output and 20,000 mAh. Obviously one can buy battery units with more capacity and/or different voltages. But, the point is that somewhere inside the Kemper Stage, there is likely a transformer that steps the line voltage down to a voltage that could be supplied by a PS. It would be great to use this with a battery bank and eliminate the cord.