KORG opsix SE - 61-key Altered FM synthesizer with aftertouch, 80 voices, and hard case

KORG opsix SE - 61-key Altered FM synthesizer with aftertouch, 80 voices, and hard case

The KORG opsix SE is a professional synthesizer keyboard that takes altered FM to a more expressive and direct level. Its premium 61-note keyboard ( Natural Touch ) responds to velocity, release velocity and aftertouch , mounted in an all-metal chassis designed for stage and studio. Beneath the panel, the synthesis engine offers up to 80 stereo voices of polyphony and an architecture with 6 operators , 40 algorithms (plus a user algorithm per program), 3 EG , 3 LFO , multimode filter (including MS-20 and Polysix models) and 3 simultaneous effects . It comes with a dedicated hard case for safe transport.

Workflow is instant with the operator mixer (level faders and ratio pots per operator), six quick-edit controls, and a clear OLED display. For creative performance and programming, there's a 16-step step sequencer (up to 6 notes per step), a 6-track Motion Sequencer , and a 7-pattern arpeggiator . Professional connectivity includes balanced L/MONO and R (TRS) outputs , headphones , a DAMPER pedal input , MIDI DIN IN/OUT , and USB . Plus, the Sound Librarian lets you manage and exchange sounds with opsix native (plug-in) for a hybrid hardware/software workflow.

Main features

• Premium Keyboard: 61 Natural Touch keys with velocity sensitivity, release velocity and aftertouch .
• Altered FM Engine: 80-voice polyphony maximum; 6 operators and 40 algorithms + user algorithm per program.
• Operator modes: FM, Ring Mod , Filter, Filter FM , Wave Folder and Effect.
• Modeled filters: classic types and MS-20 and Polysix models; 11 types in total.
• Creative sequencing: Step Sequencer (16 steps / 6 notes per step) and Motion Sequencer (up to 6 tracks).
• Built-in Effects: 3 simultaneous FX per program (30 types, such as Chorus, Tape Echo, Shimmer Reverb, Compressor, etc.).
• Library and favorites: 500 programs (350 factory + 150 user) and 64 favorites (16×4 banks).
• Real-time controls: 6 level faders OP1–OP6, 6 ratio knobs , 6 Data Entry A–F, pitch/mod wheels.
• Connectivity: Balanced L/MONO and R outputs (6.3 mm TRS), headphones , DAMPER , MIDI IN/OUT , USB .
• Includes: AC adapter and hard case .

Benefits for the musician

• FM within reach: The operator mixer makes FM synthesis visual and understandable, accelerating sound design.
• Superior expressiveness: Aftertouch and release velocity bring dynamic nuances to pads, leads, and evolving textures.
• Smooth live: Balanced TRS outputs, arpeggiator and sequencer with automation for rock-solid performances.
• Hybrid Streaming: Organize and exchange programs with opsix native using the Sound Librarian .

Use cases

• Stage: expressive leads with aftertouch, punchy basses, and automated sequences.
• Studio/Production: Complex FM layers that combine modulation, filters, and “mix-ready” effects.
• Sound design: from classic digital timbre to modern textures with Wave Folding and modeled filters.

Frequently Asked Questions

• Does it support half-damper? No; the DAMPER input does not support half-damper .
• Are the outputs balanced? Yes, L/MONO and R are impedance-balanced TRS .
• Can I use my plug-in sounds? Yes; you can exchange programs between opsix SE and opsix native using the Sound Librarian .

Description for projects

KORG opsix SE synthesizer. 61-key Natural Touch keyboard with velocity, release velocity , and aftertouch. Altered FM engine; 80-voice polyphony . Architecture: 6 operators, 1 filter (11 types, incl. MS-20/Polysix), 3 EGs, 3 LFOs, 3 effects (30 types), step sequencer (16 steps/6 notes) and Motion Sequencer (up to 6 tracks); arpeggiator (7 patterns). Library: 500 programs and 64 favorites . Connections: Balanced L/MONO and R outputs (TRS 6.3 mm), headphones, DAMPER (no half-damper ), MIDI IN/OUT, USB. Dimensions (W × D × H): 1,014 × 344 × 108 mm . Weight: 8.6 kg . Includes AC adapter and hard case .