So 12V 800mA is good?
Yes, you’ll have to combine two of the 12V 400ma outlets with a parallel current doubling cable.
I don’t know if you can answer this and it’s not related to the H90 but is there a way to combine two 9V outlets to get 18V plus double the amps?
Yes. For this you need a Voltage Doubling cable. 2200 Series Adapter cable. By using two isolated outlets the Series adapter Flex gives you the sum of voltages of the two outlets used. This adapter Flex cable should be used in combination with any of Eventide/CIOKS standard Flex cables if you want to power an 18V, 24V, or even a 40V pedal.
DO NOT USE THIS FOR THE H90!
