Fugue
The Fugue is a rare dual-section synthesizer built for Sequential Circuits by Italian organ maker Siel, combining a polyphonic string section with a monophonic analog synth in a single keyboard instrument.
Sequential
20 products
Synthesizer manufacturer founded by Dave Smith, creator of MIDI and the Prophet series.
Official siteSynthesizer
Max
The Sequential Max is a six-voice multitimbral analog synthesizer from 1984 that features individual VCFs per voice and dual onboard sequencers, though it suffers from limited user patch storage and a lack of real-time performance controls.
MultiTrak
The Sequential Circuits MultiTrak is a six-voice analog synthesizer released in 1985 as an overhaul of the SixTrak, featuring sophisticated onboard sequencing and a 61-note velocity-sensitive keyboard. It combines classic analog synthesis with 99 memory patches, split/layer modes, stereo chorus, and a polyphonic sequencer with 1600-note memory.
Pro One
A powerful monophonic synthesizer that distilled the essence of the Prophet 5 into a compact, affordable package with dual oscillators, a rich 4-pole lowpass filter, and versatile modulation routing.
Prophet 10
A rare and imposing ten-voice analog polysynth that doubled the Prophet 5's architecture, pairing twenty oscillators with a polyphonic sequencer in one of the most ambitious synthesizers of the early 1980s.
Prophet 5
The Prophet 5 is Sequential's reissue of the legendary five-voice polyphonic analog synthesizer originally designed by Dave Smith in 1978. The Rev4 edition features both Curtis and SSI filter options, 40 factory and 40 user programs, and the same warm, rich analog sound that defined a generation.
$3,499
Prophet 600
A six-voice analog polysynth that holds the distinction of being the first commercially released synthesizer with MIDI, offering Prophet 5-derived circuitry at a more accessible price point.
Prophet T8
The Prophet T8 was Sequential Circuits' finest analog synthesizer, featuring an 8-voice polyphonic architecture with a fat Prophet-5-like tone. Its 76 weighted keys with velocity and aftertouch earned it the reputation as the Rolls Royce of analog synthesizers, though it struggled commercially against the more affordable Yamaha DX7 upon its 1983 release.
Prophet VS
Sequential's groundbreaking vector synthesizer combined four digital oscillators per voice with a joystick-controlled crossfade system and analog filters, producing an extraordinary range of evolving, cinematic textures.
Six-Trak
The Sequential Circuits Six-Trak is a six-voice analog polyphonic synthesizer released in 1984, designed as an affordable entry point into the Sequential lineup. It features six VCOs with cross-modulation capabilities, a built-in arpeggiator, and a two-track sequencer, plus full MIDI control of all parameters. In Unison mode all six oscillators combine for rich, fat Moog-like tones, though its polyphonic mode can sound relatively thin without external chorus processing.
Split-8
The Sequential Circuits Split-8 is an 8-voice programmable polyphonic analog synthesizer released in 1985, featuring Curtis 3394 SENTE chips and complete MIDI implementation. It offers flexible voice allocation modes from 8-voice polyphony down to unison, a built-in chorus effect, and a 61-key keyboard with split and layer capabilities. While its programming is limited to one parameter at a time via a single data knob, it delivers a characteristically thin Sequential sound that stands apart from competitors like the Roland Juno-106.
Sampler
Prophet 2000
The Sequential Circuits Prophet 2000 is an early 12-bit sampler from 1985 featuring 8 voices of polyphony with analog VCFs and VCAs per voice, allowing hands-on analog processing of sampled sounds via a velocity-sensitive 61-key keyboard.
Prophet 3000
The Sequential Prophet 3000 is a rackmount 16-bit sampler featuring warm analog filters, variable sample rates up to 48kHz, and a detachable front panel display, released during Sequential Circuits' final years of production.
Prophet X
A sample-based synthesizer combining a large sample library with analog synthesis.
Prophet XL
An expanded version of the Prophet X with additional keys and features.
Studio 440
The Sequential Circuits Studio 440 is a 12-bit sampling drum machine and music production workstation released in 1987. It features an analog lowpass filter, a 50,000-note sequencer across 8 tracks, and was one of the first instruments to include built-in SCSI connectivity for external storage. As one of Sequential's final products, it remains a sought-after vintage instrument known for its lo-fi character and ahead-of-its-time production workflow.
Drum Machine
DrumTraks
The DrumTraks is a programmable drum machine from Sequential Circuits featuring thirteen digital drum sounds with individual tuning and level control. It offers extensive pattern editing with copy and paste capability, six individual outputs, and full MIDI implementation, making it a versatile rhythm tool from the 1984 era. Notable users include Orbital, Freddy Fresh, and Prince.
TOM
The Sequential Circuits TOM is a fully programmable drum machine from 1985 featuring digitally recorded drum sounds with extensive tuning and layering capabilities. It offers eight built-in drum kit sounds expandable via EPROM cartridges, along with a sophisticated sequencer supporting both real-time and step-time recording. Notable features include the Improv Factor for automatic fill generation, a Human Factor for natural-sounding variations, and full MIDI implementation.
Keyboard
Prelude
The Sequential Circuits Prelude is a 4-section orchestral synthesizer featuring Piano, Organ, Brass, and String sections with 49-voice polyphony. Two sections can be played simultaneously, and the instrument includes an on-board chorus/flanger effect and a 7-band equalizer. Its string sounds are particularly notable, capable of producing textures beyond traditional orchestral tones.
Prophet Remote
The Prophet Remote is a 49-note strap-on keyboard controller designed by Sequential Circuits as a remote performance accessory for the Prophet 5 synthesizer. It connects via a proprietary 20-foot cable and features mini mod-wheel controllers for pitch bending and modulation, allowing keyboardists to move freely on stage. While not commercially successful, it remains a rare collector's item among vintage synthesizer enthusiasts.