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Prophet VS Rack

Sequential_Circuits Prophet VS Rack

Prophet VS rack
Prophet VS rack

Released: 1986

MSRP: $?

Synopsis:

rack version Architecture Class: Conventional (subtractive).

Ebay Description:

The Sequential Circuits Prophet VS Rack is a (velocity and aftertouch sensitive) 3U rack, 8 voice duo-timbral digital/analog hybrid synthesizer, featuring programmable (4) digital oscillators, resonant low pass filter (24dB CEM), 3 envelopes (including vector synthesis mix envelope), and dual LFOs, along with 100 program memories, arpeggiator, stereo chorus, mix joystick, and MIDI. 32 waveforms can be uploaded via MIDI SDS.

Physical

Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
3U rack ? ? no stereo MIDI: IN OUT THRU no no sustain arpeggiator AC

Interface

Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
Prophet VS Prophet VS Rack N/A 100 MIDI SDS Model 240 VSRAM (patches:100 waveforms:32) Model 241 VSROM: no waveforms MIDI SysEx dedicated buttons LCD display

Architecture

Multitimbral Polyphony Unison Architecture
duophonic (split/layer modes) 8 yes DO1+DO2+DO3+DO4->VCF->VCA

Output

Effects Pan Modulator Volume Modulator Headphone
chorus Aftertouch key LFOs MIDI-CC10 VCF-EG Velocity Aftertouch MIDI-CC7 shared

Control

Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
up and/or down latch random reverse layer latch pedal no N/A no oscillator mix joystick MIDI-CC1 MIDI-CC7 MIDI-CC10 MIDI-CC16 MIDI-CC17 MIDI

Keyboard

Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
channel no MIDI MIDI pedal yes 1

Source

Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
DO-A digital noise:white pulse saw sine triangle RAM:32 ROM:96 (12b, 128W each) Samples 2 no no Aftertouch glide LFOs MIDI-Pitch Pitch-Wheel VCF-EG
DO-B digital noise:white pulse saw sine triangle RAM:32 ROM:96 (12b, 128W each) 2 no no Aftertouch glide LFOs MIDI-Pitch Pitch-Wheel VCF-EG
DO-C digital noise:white pulse saw sine triangle RAM:32 ROM:96 (12b, 128W each) 2 no no Aftertouch glide LFOs MIDI-Pitch Pitch-Wheel VCF-EG
DO-D digital noise:white pulse saw sine triangle RAM:32 ROM:96 (12b, 128W each) 2 no no Aftertouch glide LFOs MIDI-Pitch Pitch-Wheel VCF-EG

Filter

Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
VCF analog CEM3379 yes 24dB low pass Aftertouch VCF-EG key LFOs no

Envelope

Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
Mix-EG 5 5 forward backward no no no no
VCF-EG 5 5 forward backward no no Velocity no
VCA-EG 5 5 forward backward no no Velocity no

LFO

Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO1 random saw:up|down square triangle no no no Aftertouch LFO2 MIDI-CC1 Mod-Wheel Aftertouch LFO2
LFO2 random saw:up|down square triangle no no no Aftertouch LFO1 MIDI-CC1 Mod-Wheel Aftertouch LFO1
Conventional Models
Prophet 5 Prophet 10 Pro-One Prophet 600 Prophet T8 Fugue Prelude Velocity 6
Six-Trak Max Multi-Trak Split-Eight Prophet VS Prophet VS Rack