The ultimate multi-voice, multi-timbre, multi-engine. prologue is a fully-programmable, full-featured, professional synthesizer. 

Polyphonic analog synthesizer equipped with a full-sized keyboard. 

DSP-based effects

49-key 

8 multitimbral voices. 

2VCO + MULTI ENGINE, 1VCF, 2EG, 1VCA, and 1LFO. 

In addition to distinctive, original circuitry, such as wave shaping to shape the oscillator’s overtones and a sync/ring switch, prologue also features a two-pole low pass filter with enhanced sharpness, drive that adds powerful distortion, and a low cut (high pass) switch.

The newly developed multi engine is provided as VCO3, adding digital waveforms and FM. This multi engine, which is equipped with three different sound engines, can be combined with the analog VCOs to expand prologue’s sonic potential far beyond that of a traditional analog synthesizer.