KorgPrologue 8 Polyphonic Hybrid Keyboard Synthesizer


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Korg Prologue 8

Prologue is Korg's new flagship analog synthesizer and a big sister to the Monologue and Minilogue.

This 8 voice analog polysynth features powerful analog circuitry, a 49-note keyboard, a digital multi-engine, and several DSP-based effects. Beyond that, one of the Prologue's most ingenious features is its open-source firmware. This gives users the ability to customize oscillators and effects programs, effectively making the Prologue all their own.

Internally, Prologue sports wave shaping capabilities and a two-pole lowpass filter that excels in the creation of punchy basslines. From there, its powerful multi-engine allows for the integration of digital waveforms and FM, meaning users are not resigned to the analog realm. The multi-engine is comprised of three distinct sound engines (noise generator, VPM oscillator, and user oscillator), all of which can be combined with Prologue's analog VCOs to compound its sonic potential. The noise generator lends itself to the creation of percussive sounds and strange effects, the VPM produces sharp metallic sounds with complex overtones that are about as far away from analog as one could get, and the user oscillator allows users to load up to sixteen custom oscillator programs.

Prologue 8 Features

  • Multi-engine equipped with three types: noise, VPM, and user
  • High-quality digital effects
  • Open source software that can be customized by the user
  • Bi-timbre support
  • Voice modes that allow voices to be flexibly recombined
  • Arpeggiator equipped with a variety of types and range settings
  • Program Sort allows rapid access to 500 programs
  • Japanese-made high-quality natural touch keyboard
  • Oscilloscope function shows the waveform visually
  • Tough and stylish body made of aluminum and wood
  • Sync with another groove machine to enjoy jam sessions


  • Modulation wheel that can modify different parameters for each program, pitch wheel


  • Main: Real-time OLED oscilloscope provides visual feedback of parameter changes 
  • MULTI ENGINE section: 7 segments x 6 digit LED display

Input/Output connectors


  • Head phone jack (Stereo phone jack) OUTPUT L/MONO, R jacks (monaural phone jack unballanced) 


  • SYNC IN jack (3.5 mm [1/8"] mini jack, maximun input level 20 V)SYNC OUT jack (3.5 mm [1/8"] mini jack, output level 5 V) 


  • MIDI IN jack, MIDI OUT jack 


  • USB B jack
Control Inputs:
  • EXPRESSION jack, DAMPER jack (half damper is not supported)


  • Power Supply: AC Power Supply terminal 
  • Power Consumption: 23W
Product Demo Videos
Korg Prologue 16 Voice Sounds
This video shows some of the sounds that can be generated with the Korg Prologue synthesizer. This video shows a 16 voice, but there is also an 8 voice version available. The Prologue has 3 oscillators, 2 analog and a powerful digital oscillator, an analog filter and high quality digital effects.
Korg Prologue 8 Polyphonic Hybrid Keyboard Synthesizer Reviews