Circuits started out, garage selling a digital sequencer and a generic
synth programmer in 1977. In 1978 Dave Smith, former Moog clinician
John Bowen, and businesswoman Barb Fairhurst, the staff of Sequential
Circuits, presented the first barely working prototype of the Prophet
5 at the winter NAMM show.
Prophet 5 was the first polyphonic synth in which every parameter
could be stored in computer memory. The first fully programmable
of the succes of the Prophet 5 Sequential Circuits grew to be a
giant force and major influence in the design and manufacturer of
after experiencing several years of declining sales, later on Sequential
Circuits ceased to excist as a standalone American manufacter of
cutting edge synthesizers, samplers and drum machines.