Korg opsix

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RRP £699.00 Save £160.00


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Manufacturer's ID: OPSIX

What we say:

At A Glance:

The opsix from Korg is a modern take on FM synthesis. It offers an easy to use interface, that you can still edit deeply via the data entry encoders. This makes it great for FM novices and advanced users alike. The opsix features 6 operators, 11 different filters, three LFOs and much more. This gives you the tools to take FM synthesis and go beyond its original capabilities!

Features We Love:

Expanded FM Synthesis

The FM synthesis engine on the opsix, features a classic six-operator design. However, it expands upon the original capabilities of FM by including new waveforms, operator modes and filters.

Simplistic Workflow

Korg have made a genius move by simplifying the main workflow of the opsix. FM can be rather complex to program. By making the workflow feel more akin to analogue subtractive synthesis, it inspires more editing on the fly for performance. You still have those deep editing tools available via the data entry knobs too, which means this doesn’t sacrifice any actual programmability.


The opsix features 40 preset and user algorithms. This offers a ton of options for sound design, and the ability to construct your own algorithms from scratch. This seals the deal for us!


  • Powerful FM Synthesizer with expanded capabilities
  • Five operator modes
  • 40 Preset and User algorithms
  • Simplistic workflow with deep editing available
  • A range of analog filters
  • Range of quality FX
  • Compact and portable


Keyboard 37 keys (velocity and release-velocity sensitive)
Sound generating system Altered FM sound generator
Maximum Polyphony 32 voices (or a max. of 24 voices, depending on the settings)
Structure 6 operators, 1 filter, 3 EGs, 3 LFOs, 3 effects, step sequencer, arpeggiator
Algorithm 40 presets + user algorithm (unique to each program)
Operator 5 modes (FM, Ring Mod., Filter, Filter FM, Wave Folder)
Oscillator waveform 21 waveforms (Sine, Sine 12bit, Sine 8bit, Triangle, Saw, Saw HD, Square, Square HD, Additive Saw3, Additive Sqr3, Additive Tri3, Additive 12345, Additive 1+2, Additive 1+3, Additive 1+4, Additive 1+5, Additive 1+6, Additive 1+7, Additive 1+8, Noise S/H, Noise White)
Filter 11 types (LPF 12, LPF 24, LPF MS-20, LPF POLY6, HPF 12, HPF 24, HPF MS-20, BPF 6, BPF 12, BRF 6, BRF 12)
LFO 23 waveforms (Triangle, Saw Down, Saw Up, Square, Sine, Sample&Hold, Guitar, Exp. Triangle, Exp. Saw Down, Exp. Saw Up, Step4 Triangle, Step6 Triangle, Step4 Saw Down, Step6 Saw Down, StepRnd:Time, StepRnd:Lvl&Time, StepRnd:Level, Random:Time, Random:Lvl&Time, Triangle + , Saw Down + , Saw Up + , Square +)
V.Patch 12 routings
Effect 30 types (Chorus, Unison Ensemble, Phaser, Phaser (BPM) , Auto Pan, Auto Pan (BPM), Flanger, Flanger (BPM) , Rotary Speaker, Auto Wah, Exciter, Enhancer, LFO Filter, 3-Band EQ, Distortion, Guitar Amp, Decimator, Grain Shifter, Master Limiter, Compressor, Delay, Delay (BPM) , Autopan Dly, Autopan Dly (BPM), Tape Echo, Tape Echo (BPM) , Early Reflection, Reverb, Shimmer Reverb, Spring Reverb)
Sequencer Step Sequencer (up to 16 steps, up to 6 notes per step)
Motion Sequencer (up to 6 lanes)
Arpeggiator 7 patterns (MANUAL, UP, DOWN, ALT1, ALT2, RANDOM, TRIGGER) fault)
Number of programs 500 (250 preset programs and 250 user programs as the factory-set de
FAVORITE 64 (16 Slots × 4 Banks)
Controllers MODULATION wheel, PITCH wheel, RATIO OP 1–6 knobs, LEVEL OP 1–6 sliders, DATA ENTRY A–F knobs
Inputs/outputs Headphone (6.3 mm stereo phone jack)
OUTPUT L/MONO and R (impedance-balanced 6.3 mm TRS phone jacks)
DAMPER (6.3 mm phone jack, half-damper not supported)
MIDI IN and OUT connectors
USB B port
Power supply AC adapter (DC12V)
Power consumption 5 W
Dimensions (W × D × H) 565 × 338 × 90 mm / 22.24" × 13.31" × 3.54"
Weight 2.9 kg / 6.93 lbs
Included items AC adapter

Customer reviews

Overall Rating 5/5 (2 reviews)

Only scratched the surface of its complexity, already great fun and too much to explore. You?ll need plenty of time for exploring and experimenting. There?s a whole bunch of material on you tube as starters getting you going.

Alastair N. - 23/8/2021

Only scratched the surface of its complexity, already great fun and too much to explore. You?ll need plenty of time for exploring and experimenting. There?s a whole bunch of material on you tube as starters getting you going.

Alastair N. - 23/8/2021

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