I'm just wondering.
I'm in Australia.

I have deliberately picked some mics that don't need a PSU so I know they will be fine.
But I would like a pre-amp too.

Is the Power Supply switchable on the pre-amps?
And also with the tube mics - are they switchable too?
I'm no tech

- I wonder how hard it will be to convert it to OZ power - 240V ?????