The Prophet VS was an audio synthesizer released in 1986 by Sequential Circuits, the creators of the famous Prophet-5. An important synth at its time, the Prophet VS was the first synthesizer to introduce the concept of two dimensional cross-fading between waveforms. Sequential called this concept Vector Synthesis. Arguably the best synth ever produced by the company, Sequential never got to capitalize on their revolutionary idea as the company folded shortly after the VS was released. However, ex-Sequential employees went on to create the Korg Wavestation, the technical successor to the VS.