| Model |
Released |
MSRP |
Synopsis |
Ebay Description |
 |
1978 |
$3995-4495US |
A classic polysynth. One of the first polysynths with patch memory. |
The Sequential Circuits Prophet 5 is a classic 61 key, 5 voice analog synthesizer, featuring programmable dual oscillators (VCOB can be an LFO), resonant low pass filter (24dB CEM), dual envelopes, glide, and LFO, along with a tape interface and CV/Gate inputs/outputs. |
 |
1980 |
$7795US |
Dual Prophet5's. |
The Sequential Circuits Prophet 10 is a dual manual (2x61 keys), 10 voice analog synthesizer, featuring programmable dual oscillators, resonant low pass filter (24dB CEM), dual envelopes, glide, and LFO, along with a tape interface and 6 track sequencer. |
 |
1981 |
$995US |
Monophonic Prophet5. |
The Sequential Circuits ProOne is a 37 key, monophonic analog synthesizer, featuring programmable dual oscillators, resonant low pass filter (24dB CEM), dual envelopes, glide, and LFO, along with an arpeggiator and sequencer. |
 |
1982 |
$1995US |
6 voice Prophet5 with basic MIDI and digital EGs. |
The Sequential Circuits Prophet 600 is a 61 key, 6 voice analog synthesizer, featuring programmable dual oscillators, resonant low pass filter (24dB CEM), dual envelopes, glide, and LFO, along with an arpeggiator, sequencer, tape interface, and MIDI. |
 |
1983 |
$5895US |
8 voice updated Prophet5. (specs have not been confirmed) |
The Sequential Circuits Prophet T8 is a (aftertouch and velocity sensitive) 76 key, 8 voice analog synthesizer, featuring programmable dual oscillators, resonant low pass filter (24dB CEM), dual envelopes, glide, and LFO, along with a tape interface and MIDI. |
 |
1981 |
? |
Rebadged Siel Cruise, combining the functionality of the Siel Mono and Orchestra/Prelude |
The Sequential Circuits Fugue (rebadged SIEL Cruise) is a 49 key, analog ensemble synthesizer, featuring Brass, Piano, Reed, and String sections (with vibrato), along with a programmable monophonic synthesizer. The Brass and Piano/Reed sections have a variable attack, while the string section has a variable release. The Brass section also has "brilliance" control. The monosynth section features an oscillator (with sub), filter, envelope, and LFO. |
 |
1982 |
? |
Rebadged Siel Orchestra2 |
The Sequential Circuits Prelude is a 49 key, analog ensemble synthesizer, featuring brass (trumpet/trombone), string (cello/violin/mute/percussion), reed (organ/accordion/musette), piano (piano/clavichord/honky tonk). The brass section has a variable attack and a resonant filter, while the piano section has a variable decay and the string section has a variable attack and release. Sounds can be further shaped by vibrato, chorus, and a 5 band EQ. |
 |
1984 |
? |
Rebadged Siel DK600. |
The Sequential Circuits Velocity 6 (rebadged SIEL DK600) is a 61 key, 6 voice (velocity sensitive) analog synthesizer, featuring programmable dual oscillators, resonant low pass filter (24dB SSM), envelope, and 3 LFOs, along with 95 program memories, tape interface, and MIDI. |
 |
1984 |
$895US |
Z80/CEM3394 based synth with a predominantly digital User Interface (i.e. no more dedicated knobs). Multitimbral (via sequencer), single oscillator P600. |
The Sequential Circuits Six-Trak is a 49 key, 6 voice multitimbral (via sequencer) analog synthesizer, featuring a programmable oscillator, resonant low pass filter (24dB CEM), 3 envelopes, and LFO, along with 100 program memories, arpeggiator, 6 track (800 note) sequencer, and MIDI. |
 |
1984 |
$795US |
MIDI only editable SixTrak. |
The Sequential Circuits Max is a 49 key, 6 voice multitimbral (via sequencer) analog synthesizer, featuring a (MIDI only) programmable oscillator, resonant low pass filter (24dB CEM), 3 envelopes, and LFO, along with 100 program memories (80 editable via MIDI), 6 track (800 note) sequencer, and MIDI. |
 |
1985 |
$1499US |
Updated velocity sensitive SixTrak. |
The Sequential Circuits Multi-Trak is a (velocity sensitive) 61 key, 6 voice multitimbral analog synthesizer, featuring a programmable oscillator, resonant low pass filter (24dB CEM), 3 envelopes, and LFO, along with 100 program memories, arpeggiator, 4 track (1600 note) sequencer, stereo chorus, individual outputs, and MIDI. |
 |
1985 |
$1199US |
Duo-timbral Multitrack without the sequencer |
The Sequential Circuits Split-Eight is a (velocity sensitive) 61 key, 6 voice duo-timbral analog synthesizer, featuring a programmable oscillator, resonant low pass filter (24dB CEM), 3 envelopes, and LFO, along with 64 program memories, arpeggiator, 6 track (800 note) sequencer, stereo chorus, individual outputs, and MIDI. |
 |
1986 |
$2595US |
keyboard version |
The Sequential Circuits Prophet VS is a (velocity and aftertouch sensitive) 61 key, 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. |
 |
1986 |
$? |
rack version |
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. |
