I’m building a pedalboard with 3 factor pedals, an H9, and 3 other 9V DC pedals.     I’m having a hard time finding a power supply that can accomadate all these, specifially the 3 factor pedals which have an output of 1200mA.   The Powermax only offers isolated 400mA while Zuma is 500mA.    

I’m not sure how this affects the pedals and hoping someone can advise?

Appreciate the help, thanks!