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Korg Opsix Altered FM Synthesizer

Korg Opsix Altered FM Synthesizer, 37-Keys, True 6-operator FM synthesis, and more, FM exploration, DATA ENTRY knobs, 40 preset algorithms and user algorithms, 11 powerful filters, 3 series of 30 types of high-definition effects


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MSRP: Old Price $1,200.00 Discounted Price $799.99 Save : $400.01 (33%)
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MSRP: Old Price $1,200.00 Discounted Price $799.99 Save : $400.01 (33%)
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Rethink everything you know about FM synthesis.
The opsix represents a new and expansive reimagination of classic digital synthesis. Much like Korg did when bringing wave sequencing back in a more powerful, more musical, and more immediately accessible way with wavestate, so was the approach to FM sound generation of the opsix, resulting in another incredibly flexible and unique synth.

The opsix is an "altered" six-operator FM synthesizer. With its astoundingly accessible operator mixer and flexible sound engine that goes well beyond traditional FM, this instrument widens the potential of digital synthesizers to their utmost.

The opsix is an instrument for players of all generations - modern in every way, getting back to the basics to offer you a glimpse of the future. Whether you are new to synths, looking for a completely unique addition to your sound palate, or an original FM purist, opsix will deliver on all expectations and more.


  • True 6-operator FM synthesis, and more
  • FM exploration, easier than ever
  • Full editing with the DATA ENTRY knobs
  • 5 operator modes that expand FM synthesis
  • 40 preset algorithms and user algorithms
  • 3 EGs, 3 LFOs and 12 virtual patches offer an extensive range of modulation
  • 11 powerful filters, including MS-20 and Polysix
  • 3 series of 30 types of high-definition effects
  • Visually-satisfying editing with a spectrum analyzer and oscilloscope
  • Powerful 16-step polyphonic sequencer
  • Adding unpredictability to sounds with the Randomize feature
  • Favorite and smooth sound transition (SST) functions
  • Compact design featuring a 37-key keyboard
  • Includes AC adapter

Get your Korg Opsix Altered FM Synthesizer today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Synthesizer
  • AC Adapter


by PowerReviews
Synth Type Digital
Synthesizer Format Keyboard Synthesizer
Number of Keys 37
Controller Types MODULATION wheel, PITCH wheel, RATIO OP 1–6 knobs, LEVEL OP 1–6 sliders, DATA ENTRY A–F knobs
Oscillators 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)
Polyphony 32 voices (or a max. of 24 voices, depending on the settings)
Preset Types 40 presets + user algorithm (unique to each program)
Effects Type 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)
Arpeggiator Yes
Sampling Yes
Audio Input Types Headphone (6.3 mm stereo phone jack), DAMPER (6.3 mm phone jack, half-damper not supported), MIDI IN, USB B port
Audio Output Types OUTPUT L/MONO and R (impedance-balanced 6.3 mm TRS phone jacks), MIDI Out
MIDI I/O MIDI In and Out connectors
Power Supply Type AC adapter (DC12V)
Weight 6.93 lbs
Dimensions 22.24" × 13.31" × 3.54" (WxDxH)
Model opsix
Warranty Info:

One year parts and labor. 90 Days on footswitches, tubes, and AC adapters. Three years on tuners and metronomes.

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