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Korg opsix

Item: SYN0007732-000
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Korg opsix Altered FM Synthesizer with 37-Note Full-Size Keyboard, 500x Programs, 32x Voices & 30x Effect Types  All product info

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Product information - Korg opsix Altered FM Synthesizer

Korg opsix 37-Note Altered FM Synthesizer

The Korg opsix Altered FM Synthesizer is a 37-Note Altered FM Synthesizer, with capabilities that go far beyond FM Synthesis and even include other forms of Sound Generation such as Filter FM and Wave Folder. A Multi-Mode Filter with 11x Models includes the Korg classics MS-20 and Polysix. The final touch is added with the Effects Processor, which has 30x cutting-edge Effects ready for refinement or further alienation. The 37-Note Keyboard is Full-Size and Velocity/Release Dynamic, which, in view of the flexible Sound Generation and Modulation possibilities, enables unbridled creative expression. Depending on the Algorithm used, the Instrument has up to 32x Voices.

Tone Generation

The opsix has 5x Modes that cover more than classic FM Synthesis, and is exemplarily represented with 6x Operators and 40x different Algorithms. Other Tone Generation Modes include Ring Modulation, Filter, Filter FM and Wave Folder. The Instrument benefits from a total of 21x Waveforms including Noise, which can be integrated into the Sound Generation Forms as desired. Classic Waveforms such as Saw-Tooth and Square are also included. The elaborately created basic sound is processed by a Digital Multi-Mode Filter that offers no less than 11x different Filter Models, including the Korg classics MS-20 and Polysix. The final touch is given to each of the 500x Sounds in the opsix with the Effects Processor. 30x Effects from the areas of Reverb, Delay, Modulation, Distortion and more can be applied to the point. Don't feel like doing your own sound research today? Let the Randomize Function inspire you: at the touch of a button, it throws a completely new Sound, or refers to individual elements such as Operators, Algorithms or Sequences.

Modulation & Sequencer

In addition to the usual Modulation Sources such as Velocity or the Modulation Wheel, 3x LFOs and 3x Envelopes bring life to the already complex sounds. Anything that is not directly assigned or is to Modulate more than one target can be animated via the Modulation Matrix with 12x additional entries. The Polyphonic Step-Sequencer allows sequences up to 16x Steps long and records up to 6x Controller movements (motion sequence) in the Pattern. A flexibly adjustable Arpeggiator acts as a further playing aid.

Korg opsix Display und Regler
Korg opsix

Special Features

In the past, complex FM Synthesizers had to get by with a minimum of Controls, but with the Korg opsix, the full range is available. This is very conducive to targeted Sound Construction, and spontaneous changes can be made moment to moment. The Display can also function as a Spectrum Analyser or Oscilloscope. The former displays Levels, Frequency Bands and the Overtone Structure in a simplified way, the Oscilloscope Mode displays the final Waveform visually.

Korg opsix Rückansicht

Software for Mac/PC

Korg Collection M1 Le, UVI Digital Synsations, AAS ultra Analog Session, AAS Strum Session, AAS Lounge Lizard Session, Reason Studios Reason lite, iZotope Ozone Elements, Skoove Educational Software

The main features of the Korg opsix Altered FM Synthesizer include:

  • 37-Note Altered FM Synthesizer
  • Velocity & Release-Velocity Sensitive Keys
  • 6x Sliders
  • Modulation & Pitch Wheels
  • 32x Voices
  • Algorithm with 40x Pre-Sets & User (Unique to Each Program)
  • 6x Operators with 5x Modes (FM, Ring Mod., Filter, Filter FM, Wave Folder)
  • Filter with 11x 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)
  • 3x EGs (ADSR)
  • 3x LFOs with 23x 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 +)
  • 3x Effects with 30x 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)
  • Step Sequencer (16-Steps, Up to 6x Notes per Step)
  • Arpeggiator with 7x Patterns (MANUAL, UP, DOWN, ALT1, ALT2, RANDOM, TRIGGER)
  • Oscillator with 21x Waveforms (Sine, Sine 12-bit, Sine 8-bit, 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)
  • 500x Programs (250x Pre-Set & 250x User)
  • 6.3mm Stereo Headphone Jack
  • 6.3mm Impedance-Balanced TRS Phone Jack Outputs (L/MONO & R)
  • 6.3mm Damper Phone Jack
  • MIDI In/Out
  • USB-B Port
  • Consumption: 5W
  • DC 12V AC Adaptor Powered
  • Includes: AC Adaptor
  • Dimensions (WxDxH): 565 x 338 x 90mm
  • Weight: 2.9kg

Own FM with Korg’s opsix Altered FM Synthesizer


  • Manufacturer: Korg
  • Construction / Number of Keys: 37
  • Keyboard: light weight
  • Velocity sensitive: Yes
  • Sound Generation: Digital
  • Arpeggiator: Yes
  • Number of Faders: 6
  • Number of Knobs: 14
  • Number of Keys: 40
  • Pitchbend, Modwheel: Pitchbend and Modwheel
  • Display: Yes
  • USB MIDI Interface: Yes
  • Headphone Connection: Yes
  • Sustain Pedal Connection: Yes
  • Mounting Options: MIDI Step Sequencer
  • MIDI Interface: Yes
  • LINE OUT: Yes
  • incl. Power Adapter: Yes
  • Weight (kg): 2.9
  • Illuminated Buttons: Yes
  • Integrated Effects Processor: Yes
  • Number of Sounds: 500
  • Polyphony: 32
  • Power Supply: Adapter, external
  • Width (cm): 56.5
  • Height (cm): 9
  • Depth (cm): 33.8
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