The Korg M1 is more than just a synthesizer; it is a historical artifact. Released in 1988, it remains the best-selling keyboard synthesizer of all time, shifting over 250,000 units. If you own one—or are looking to buy one—the Korg M1 serial number is the single most important piece of data attached to your instrument. It is the key to unlocking its manufacturing date, authenticity, hardware revision, and current market value.
In this deep-dive article, we will explore exactly how to decode the Korg M1 serial number, why it matters for collectors and musicians, and how to spot a fake or a "transition" model. Korg M1 Serial Number
Korg did not explicitly print the date on the sticker, but the industry has reverse-engineered the system based on thousands of user-submitted units. The Korg M1 is more than just a
The serial number of the Korg M1 can typically be found in one of the following locations: It is the key to unlocking its manufacturing
On the earliest units (typically those with a red "Demo" button label), the serial number is stamped on a silver or black sticker affixed to the rear panel, near the power cord inlet and the MIDI jacks. It usually starts with a prefix like "M1-" or "17."
No known "clone" cases exist. However, there are many "M1s" that are actually 01/W or T3 boards stuffed into an M1 case. Check that the serial number on the board matches the case. If the case number is 85000 but the board says 400000, avoid it.