Nord Stage Classic - Is it revision A, B or C?

[stephensahlin]

Hi y'all!
Tried searching the forum (and also the internet) but didn't find anything about this.
I have an old Nord Stage Classic 88, but I'm not sure which revision it is. Think it's A but I'm not sure.
I've looked in the SYSTEM info in the instrument and also hooked it up to the Sound Manager, but can't find any revision (A, B or C) info.
Any tips/clues out there?
Cheers/Stephen