Selling a KORG OPSIX — powerful 6-operator digital FM synthesizer with expanded creative control
This is Korg’s modern take on FM synthesis, redesigned for musicians, producers, and sound designers who want deep, flexible tone-shaping without the complexity of vintage FM programming. The OPSIX reimagines traditional FM with an intuitive layout, analog-style workflow, and an incredible engine that extends far beyond classic algorithms.

At the heart of the OPSIX is a true 6-operator FM sound engine with five operator modes (FM, Ring Mod, Filter, Filter FM, and Wave Folder) and 21 waveform types, including both classic sine and additive shapes. The synth supports 32-voice polyphony, making it ideal for pads, leads, and evolving textures. It also includes 40 preset algorithms plus one user-definable slot per program.

With 11 filter types, three ADSR envelopes, three LFOs, and 12 virtual patch routes, the OPSIX is a versatile powerhouse. The 30 built-in effects include essentials like chorus, delay, reverb, distortion, compression, shimmer, and tape echo. A 16-step motion sequencer with up to 6 notes per step and a 7-pattern arpeggiator gives you expressive real-time control.

The interface features six sliders and six rotary knobs for operator control, plus mod and pitch wheels. All settings are clearly displayed on the bright screen for seamless navigation. You can save up to 500 programs and mark 64 favorites for fast access.

Bundled with a full suite of music software, including KORG Gadget 2 LE, KORG M1 LE, UVI Digital Synsations, Reason Studios Reason Lite, iZotope Ozone Elements, and more — you’ll be ready to compose, design, and mix right out of the box.

Specifications:

• Keyboard: 37 keys (velocity-sensitive)
• Synthesis: Modified FM engine with 6 operators
• Polyphony: Up to 32 voices (depends on settings)
• Filters: 11 types including LPF, HPF, BPF, BRF, MS-20, POLY6
• Oscillators: 21 waveforms
• Envelopes: 3 x ADSR
• LFOs: 3 with 23 waveform types
• Effects: 30 onboard FX (chorus, delay, reverb, distortion, EQ, etc.)
• Sequencer: 16-step polyphonic with motion sequencing (6 lanes)
• Arpeggiator: 7 patterns (manual, up, down, alt1/2, random, trigger)
• Presets: 500 total (250 factory + 250 user)
• Favorites: 64 (16 slots × 4 banks)
• Controllers: Mod wheel, pitch wheel, 6 OP level sliders, 6 ratio knobs
• Headphone out: 1 x 1/4" stereo
• Audio outputs: 2 x 1/4" balanced TRS (L/Mono, R)
• Damper pedal input: 1 x 1/4" (half-damper not supported)
• MIDI: In/Out (5-pin DIN)
• USB: Type B
• Power supply: 12V DC adapter (included)
• Power consumption: 5W
• Dimensions: 56.5 x 33.8 x 9.2 cm
• Weight: 2.9 kg
• Software included:
  KORG Collection - M1 LE, UVI Digital Synsations, AAS Ultra Analog Session, Strum Session, Lounge Lizard Session, Reason Lite DAW, KORG Gadget 2 Le (Mac), iZotope Ozone Elements, and 3-month Skoove Premium trial
• Color: Black

If you're looking for a modern FM synth with deep editing, intuitive workflow, and massive creative potential — Korg OPSIX is the perfect addition to your setup. Message for more info or photos!