Korg opsix specs
A 37-key FM synth around an Altered FM sound generator, with 32-note polyphony, 500 presets and 30 onboard effect types. It weighs 2.9 kg and the keys are velocity- and release-velocity-sensitive rather than aftertouch-sensitive.
Brand: Korg
8.0/ 10
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32 voices of altered FM with 500 programs and 30 effect types in a 2.9 kg, 37-key keyboard.
#9 of 38 synthesizers · full ranking| Status | current |
|---|---|
| Keys | 37 |
| Key action | velocity and release-velocity sensitive |
| Polyphony | 32 |
| Sound engine | Altered FM sound generator |
| Effects | 30 types |
| Sounds / presets | 500 |
| Weight | 2.9 kg |
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Strengths
- Altered FM engine with 32-note polyphony
- 30 onboard effect types
- 500 presets
- 2.9 kg - light enough to gig
Weaknesses
- No aftertouch on the 37-key keybed
- FM programming asks more of the player than a subtractive synth
- No pads documented
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Spec source: www.korg.com — verified 2026-10-10