Korg M1 Serial Number [top] Jun 2026

Certain components, such as the tactile switches that often become flaky and unresponsive , may have slight variations in later models.

The original CR2032 battery typically lasts 10–15 years; most M1s have already required at least one replacement to keep user programs saved.

The Korg M1 is the best-selling digital synthesizer in music history. Released in 1988, it defined the sound of late '80s and early '90s pop, house, and film music. Because Korg produced an estimated 250,000 units during its production run, finding an M1 on the used market is relatively easy. However, understanding its serial number is crucial if you want to determine its exact manufacturing year, ensure hardware compatibility, or verify its authenticity. Korg M1 Serial Number

There is a persistent myth that an M1 with a serial number below 810000 is a "prototype." This is false. The first 10,000 units are functionally identical to the next 10,000. However, market psychology is real. On Reverb and eBay, an M1 with serial 802345 will sell for roughly $150 more than an identical 199999 unit simply because buyers chase the "first batch" aura.

Later units shipped with version 8.x, which fixed MIDI data transmission bugs and improved system stability. Certain components, such as the tactile switches that

The serial number is often relevant when performing maintenance or upgrading firmware. To check your M1's internal software version: Turn the power . Press and hold the [INT] button. Turn the power ON .

: The "clicky" house organ sound central to Crystal Waters' "Gypsy Woman (She's Homeless)" and Robin S.'s "Show Me Love." Universe (Preset 00) Released in 1988, it defined the sound of

For a collector’s item like the Korg M1, the serial number directly influences its financial value.

The serial number sticker also states the factory voltage configuration (e.g., 100V for Japan, 120V for North America, 220-240V for Europe). Always double-check that the serial plate matches your local grid voltage, as many Japanese 100V units are exported globally today and require a step-down transformer to prevent frying the internal power supply. Common Serial Number Variations: M1 vs. M1R vs. M1EX