The serial number can be found on the back or bottom of the unit, near the power cord or on a sticker.
Active and sold listings on sites like Reverb are an underrated resource. Sellers often photograph the serial number sticker. By browsing these listings, you can build a mental database of which serial number ranges correspond to which conditions and features.
On a standard Korg M1 or M1R (rack version), the serial number is located in two primary places: Korg M1 Serial Number
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Korg used a sequential numbering system for the estimated 250,000 units produced between 1988 and 1994. The serial number can be found on the
To help you get the most out of your vintage synth, I can look into a few more things. Where to download the ?
In the vintage synth market, lower serial numbers or units with complete original accessories can attract a slight premium. A complete set—including the original manuals, packaging, and memory cards—adds significant value. By browsing these listings, you can build a
Limitations and caveats
Unlike modern synths with complex date codes (YMDD), the M1 uses a relatively simple, albeit inconsistent, system. There are three distinct eras.