I am not familiar with the MD, but the outputs of these are different!
The old one outputs 6 volts AC, the new one 12 volts AC, that’s twice as much and might damage your device.
(If the MD takes 6V and AC - does the MD really require AC power?)
The MD MK1 is 6V AC.
This is pretty rare to require AC for a PSU, so please be over vigilant on that because you will fry your MD with a non AC 6V PSU.
To sum it up you need a 220v AC to 6V AC.
If you see DC on the PSU it’s not for you.
On this topic, does anyone know why they chose AC over DC for the MD & MnM MK1? Were DC PSUs not reliably or efficient enough yet in 2001-2003? I’d really love to know, these two boxes are the only low voltage AC products I’ve ever seen besides my O2 amp
yeah I’m curious why the MK1s used AC in the first place though, it must be something niche & audio related because I cant find any general answers on google why a early 00s consumer product would use AC power.
Thanks for the comments and help everyone. In the end the power supply works but gets hot and gives off an awful smell. I might try another power supply.