Korg M1 Serial Number File

Do you own a Korg M1? Leave a comment with your serial prefix below (e.g., "M1-08xxx") and share your restoration story.

| Part | Low Serial (M1- / 171xxxx) | High Serial (174xxxx+) | | :--- | :--- | :--- | | | Non-backlit (16 pin) | Green backlit (14 pin) | | Key Weight | 55g lead weights (heavy) | 45g zinc weights (light) | | Power Supply | Discrete transformer | Switching supply (different fuse) | | Output Jacks | Soldered directly to board | Wired with a ribbon cable (more durable) | Korg M1 Serial Number

If you own a Korg M1, you own a piece of music history. Released in 1988, the M1 is officially the best-selling synthesizer of all time, moving over 250,000 units. It defined the late-80s and early-90s soundscape, from the iconic "Universe" patch in house music to the "Piano 8" on countless ballads. Do you own a Korg M1

But for collectors, restorers, and resellers, the is more than just a string of digits on a sticker. It is the keyboard’s DNA. It tells you when it was built, where it was shipped, which hardware revision you have, and ultimately, how much it is worth. Released in 1988, the M1 is officially the