Based on the website, 12V, 0.5 A will work. If you like to leave it plugged in, this is a very nice options:
https://amzn.to/2rQtNiZ
If you want something absolutely killer though ....
https://amzn.to/2LxI6SG
You would have to roll your own power cable though, it has banana jacks on the back.
https://amzn.to/2rQtNiZ
If you want something absolutely killer though ....
https://amzn.to/2LxI6SG
You would have to roll your own power cable though, it has banana jacks on the back.