The Prophet VS uses Vector Synthesis as its revolutionary new means of sound creation. It uses a total of four oscillators per voice with 127 waveforms (32 user) and dynamic waveform crossfading via the joystick. This was Sequential's first digital synth, and it was also their final synth unfortunately.
Condition:
Overall the VS is in good cosmetic condition, top panel shows heavy wear (scratches and dents) from being in and out of racks over the years, the top cavity plate opens with no trouble.
Currently loaded with OS 1.1, a few of the buttons are sticky from time to time, but all functions perform as expected.
The previous owner mentioned that one of the CEM5530's was replaced. The repair looks to have been performed by John Leimseider (RIP) based upon the SSM chips & the fact that it's on a standoff, however we cannot confirm this. Pro job to say the least.
Everything else is original, so that means the screen is blue and weird to read at certain angles (most folks replace with an OLED) and the power supply hums (you can buy modern replacements for around $350.)
The Stereoping VS Controller connects via MIDI and allows you to control most parameters remotely, works like a charm.
Original VS and VS Controller manuals are included.
Polyphony - 8 Voices; 2-part multitimbral
Oscillators - 96 preset waveforms + 32 user waveforms
LFO - Two, each with own envelope generator
Filter - Curtis analog (digitally controlled) 4-pole lowpass with its own envelope generators
Envelopes - 5 stage amp, filter and mix envelopes
Keyboard - 61 keys (velocity / aftertouch)
Effects - twin chorus, stereo effects panning of individual oscillators/individual voices
Arpeggiator - very nice versatile arpeggiator, user can define note order by playing etc.