Columbus Power

Hi guys, I'm looking to move on my Columbus, as I just don't use it any more. Problem being, I have no power supply. I know it says it requires 12v, but will this run off 9v by chance? If not, can anyone recommend a PSU? I've found a few 12v supplies for the likes of the TC gear, but don't wanna buy if it's not gonna work.

Attention ! We switched polarity during the last years.
get a proper supply.

Thanks,
Peter