Portable power bank DC output suitability?

Hi there,

I am looking at purchasing a portable power unit that I could use to power the Quad Cortex via the DC outlet when performing outdoors away from a AC outlet.

Would anyone mind looking at the link here and tell me if this would definitely be ok to use? It says DC is 12V up to 10A. It seems to me that this would be fine as the quad cortex would only draw 3A. I would be using the AC outlet on this unit to power my powered FRFR speaker.


Thanks for your help in advance