Unlike earlier Korg models that used year-based prefixes, the M1 belongs to the "Just Numbers" era of Korg production (post-1983).
of the unit, usually near the power input or the MIDI ports. Production Context: Korg produced approximately 250,000 units between 1988 and 1995. Serial number was famously reached in November 1990. Diagnostic Check:
Korg did not use a standardized public date-coding system like some other manufacturers (e.g., Roland’s YYMMDD format). However, based on collector data and repair logs, general patterns emerge.
Keep in mind that these are approximate ranges and may not be entirely accurate.
But for the enthusiast, restorer, or potential buyer, the serial number is a tool. It tells you if you’re holding a museum-quality first-run unit, a reliable late-model player, or a parts-bin special. And in a world where vintage synth prices have gone parabolic, that small sticker can mean the difference between paying collector’s premium and paying fair market value.
Unlike earlier Korg models that used year-based prefixes, the M1 belongs to the "Just Numbers" era of Korg production (post-1983).
of the unit, usually near the power input or the MIDI ports. Production Context: Korg produced approximately 250,000 units between 1988 and 1995. Serial number was famously reached in November 1990. Diagnostic Check: Korg M1 Serial Number
Korg did not use a standardized public date-coding system like some other manufacturers (e.g., Roland’s YYMMDD format). However, based on collector data and repair logs, general patterns emerge. Unlike earlier Korg models that used year-based prefixes,
Keep in mind that these are approximate ranges and may not be entirely accurate. Serial number was famously reached in November 1990
But for the enthusiast, restorer, or potential buyer, the serial number is a tool. It tells you if you’re holding a museum-quality first-run unit, a reliable late-model player, or a parts-bin special. And in a world where vintage synth prices have gone parabolic, that small sticker can mean the difference between paying collector’s premium and paying fair market value.
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