Korg A1 (1992–1993)
The Korg A1 sits awkwardly in the historical record. It isn't obscure enough to be a mystery, and it isn't famous enough to be well documented. What's clear is that it was a digital synthesizer workstation built around Korg's AI² (Advanced Integrated 2) engine, the same sample-plus-subtractive architecture that powered the 01/W and later X-series boards. It offered 32-voice polyphony, 16-part multitimbrality, and a 16-track sequencer, all in a 61-key, velocity-sensitive chassis with a backlit 40-character LCD. Two independent effects processors handled reverb, delay, chorus, flanger, phaser, and distortion. A front-panel assignable knob gave quick access to the resonant low-pass filter, and players praised it for sounding unusually musical on a digital board.
The A1 was positioned below the 01/W as a more affordable entry point into the AI² sound. Sources disagree on the details. Some list the waveform ROM at 16 MB, others at 8 MB. Patch memory is variously cited as 128 presets or 64 preset plus 64 user. The release year is split between 1992 and 1993. Even the form factor is contested. Most references describe a keyboard workstation, but at least one forum user insists the A1 was primarily a rack unit without keys and that the keyboard version is rare. Given the conflicts, the keyboard workstation description looks like the more common account.
The period press is thin but suggestive. Sound on Sound (January 1996, p.119) ran a comparison of piano sounds across contemporary workstations. The A1's acoustic pianos came off poorly, described as lacking depth next to Roland's PCM-based JV series and totally outclassed by dedicated piano modules. That matches the A1's general reputation among collectors: a capable, warm-sounding synth for the money, but not one that ever threatened the flagship boards above it.
Known issues to watch for on the used market: the CR2032 battery that holds patches will eventually die and require disassembly to replace, display contrast/backlight failures are common, and the internal power supply is a known weak point — several owners report failures and recommend recapping. The floppy drive can be swapped for a Gotek emulator with an adapter. None of this is surprising for an early-’90s workstation.
Today the A1 trades for roughly $250 - $400 in the US or around €300 in Europe, often with the original box and manual. It's consistently recommended as a first vintage Korg workstation because it's undervalued. It's less collectible than the M1 or 01/W, but it has the same core sound at a fraction of the price.
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