Korg M1 Serial Number [better] May 2026
The Ultimate Guide to Korg M1 Serial Numbers: Identification and History
Closing note
Overview
M1EX-XXXXX
No. The "Piano 8" card (M1R-1) was an aftermarket ROM. However, if your serial is , the card came built-in. All other serials require you to open the expansion bay to check. Korg M1 Serial Number
XXXXXX (six digits) or XXXXXX-XX (six digits + region suffix) The Ultimate Guide to Korg M1 Serial Numbers:
The M1 is so iconic that counterfeit units are rare, but non-working parts units sometimes get reshelled. A missing or oddly formatted serial sticker can indicate a repair or frankenstein build. Sub-100,000 serial (very rare) – If you have
- Sub-100,000 serial (very rare) – If you have one, it’s a very early production unit. Could fetch a 15–25% premium over standard M1 prices ($500–700 vs. $400–500).
- M1EX models – Have their own serial prefix (often start with
EXor7xxxxx).