A 2A supply should be fine. I’m not an expert, but my understanding is that amperage is a measure of capacity – meaning a 2A power supply can provide up to 2A, but the device will draw what it’s designed to draw.
If in doubt, shoot Elektron a message to be certain.
That’s right. With either a 1A or 2A power supply the M:C will draw what it needs at the instant, wether that’s 1A, 0.5A 0.176A, etc. Same applies to any electric/electronic device of course.
Why don’t you buy it from the Elektron website in the Accessories tab?
It’s the Power Supply PSU-4b.
Then you get exactly what’s needed for your machine…