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Welcome to the Sequential_Circuits Gallery

Introducing Sequential_Circuits

American microprocessor based analog synth pioneer, founded by Dave Smith, producing synthesizers and samplers from 1978-1987, when bought by Yamaha (later became Korg R/D). Most families (except rebadged SIEL) share the same CEM based subtractive architecture (Source->VCF->VCA), with differing polyphony and sources (e.g. 1-4 oscillators or a sample). For street prices, see Prepal.

Released Conventional Sampler
1978 Prophet-5
1980 Prophet-10
1981 Pro-One Fugue
1982 Prophet-600 Prelude
1983 Prophet-T8
1984 Velocity-6 Six-Trak Max
1985 Multi-Trak Split-Eight Prophet-2000 Prophet-2002 Prophet-2002-Plus
1986 Prophet-VS Prophet-VS-Rack
1988 Prophet-3000

Architectural Classes:

  • Additive: Multiple sine wave harmonics are combined.
  • Conventional: Single cycle waveforms, subtractive architecture (filtered harmonics).
  • FM: Oscillators use Frequency or Phase Modulation.
  • Rompler: ROM based samples (often subtractive).
  • Sampler: User recorded samples (often subtractive).
  • Modelling: Digital model, usually involving a Driver and Modulators.