Korg M1 Serial Number -

Later serial numbers (210k+) tend to have more reliable power supplies and backlights.

For digital versions, the serial number is required to associate an owner with a unique user account on KORG USER NET . Summary Table: Estimated Production Timeline Serial Number Range Estimated Production Year 000001 – 050000 1988 – 1989 050001 – 100000 1989 – Nov 1990 100001 – 175000 1991 – 1993 175001 – 250000 1993 – 1995 Korg M1 - what model? - Vintage Synth Explorer Forums Korg M1 Serial Number