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There are basically three versions of the Prophet 5: Rev 1 P5s are pretty unreliable, if you find one; they're also quite rare. These were all hand-assembled in the 'garage stage' of the company. Rev 2 uses SSM chips, and has some differences in its control logic capabilities from the final version. It can't be retrofitted for MIDI, but is. Looking for SCI Prophet 5, Rev 2 operation manual. Hi, I´m looking for SCI Prophet Rev 2 operation manual in pdf. I have only found the service manual for Rev 2 and both manuals for the Rev 3.x.
Prophet-5 | |
---|---|
Manufacturer | Sequential Circuits |
Dates | 1978–84 |
Price | US$3,995 (Rev 1, 2) US$4,595 (Rev 3) |
Technical specifications | |
Polyphony | 5 voices |
Timbrality | Monotimbral |
Oscillator | 2 VCOs per voice |
LFO | 1 |
Synthesis type | Analogsubtractive Analog FM (Poly-Mod) |
Filter | 4-pole resonant low-pass |
Attenuator | ADSR envelope (2) |
Aftertouch expression | No |
Velocity expression | No |
Storage memory | 40 patches (120 patches on later units) |
Effects | None |
Input/output | |
Keyboard | 61 keys |
Left-hand control | Pitch and modulation wheels |
External control | CV/Gate |
The Prophet-5 is an analog synthesizer manufactured by Sequential Circuits between 1978 and 1984. It was designed by Dave Smith and John Bowen. The Prophet-5 was the first fully programmable polyphonic synthesizer and the first musical instrument with an embedded microprocessor. Masibus temperature scanner 85xx manual pdf. About 6,000 units were produced across three revisions. It has been emulated in software synthesizers and analog hardware.
- 1Production
Production[edit]
The Prophet-5 was created in 1977 by Dave Smith and John Bowen at Sequential Circuits, who aimed to create the first polyphonic synthesizer with the ability to store and recall patches.[1] Initially, they developed the Prophet-10, a synthesizer with ten voices of polyphony; however, it was unstable and quickly overheated, creating tuning problems. Smith and Bowen removed half the electronics, reducing the voices to five and creating the Prophet-5.[1]
Smith demonstrated it at NAMM in January 1978 and shipped the first models later that year.[2] Unlike its nearest competitor, the Yamaha CS-80, the Prophet-5 had patch memory, allowing users to store sounds rather than having to reprogram them manually.[3]
Three versions were built between 1978 and 1984. The first, Revision 1, was hand-assembled and produced quickly to generate initial revenue; only 182 were made. Revision 2 was mass-produced in quantities over 1,000; this model was more robust, added cassette patch storage, and replaced the koa wood casing with walnut.[1]
Revision 3 replaced the Solid State Music (SSM) chipset with Curtis Electromusic Specialties (CEM) chips, necessitating a major redesign. According to Sound on Sound, Revision 3 'remained impressive and pleasant to play, but was slightly cold and featureless by comparison to earlier models'.[1] In all, approximately 6,000 Prophet-5 synthesizers were produced.[1]
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Prophet-10[edit]
In the Prophet-10, a pair of Prophet-5 sound boards provide ten voices
Rev 2 Commentary
In 1981, Sequential Circuits finally released the Prophet-10 synthesizer, featuring 10 voices, 20 oscillators, and a double manual keyboard. Like the Prophet-5 Revision 3, it uses CEM chips.[1] The first Prophet-10s used an Exatron Stringy Floppy drive for saving patches and storing sequencer data. Sequential later moved to a Braemar tape drive, which was more reliable and could store about four times as many sequencer events.[1]
Impact[edit]
The Prophet-5 became a market leader and industry standard.[3] It has been used by acts including Michael Jackson, Tangerine Dream, Madonna, Patrick Cowley, Dr Dre,[3]Too Short, Radiohead,[4]John Carpenter, Alan Howarth,[5] and John Harrison.[3]Brad Fiedel used a Prophet-10 to record the soundtrack for The Terminator (1984).[6]
Synthesis[edit]
Early Prophet-5s used voltage-controlled oscillator, filter and amplifier chips designed by E-mu Systems and manufactured by Solid State Music (SSM). Revision 3 Prophet-5s used Curtis CEM chips manufactured by Curtis Electromusic Specialties. Some owners maintain that SSM oscillators produced a richer timbre.[7] However, the SSM oscillators rendered the instruments unstable and prone to detuning over time. CEM chips have remained more stable.[8]
The Prophet-5 uses five voices of polyphony. Each voice is assigned two VCOs. Both oscillators can generate sawtooth waves and square waves (with variable pulse width), and the second oscillator can also generate a triangle. The oscillators can be played in sync, or in 'Poly-Mod', with oscillator B and the filter ADSR envelope modulating the frequency, pulse width, and filter of oscillator A. A dedicated low-frequency oscillator (saw, square, or triangle) is also present to modulate the pulse width and/or pitch of oscillators A and B and filter cutoff frequency.[7]
The Prophet-5 uses a 4-pole resonant low-pass filter. The filter has a dedicated ADSR envelope and keyboard tracking.
Successors[edit]
DSI Prophet '08 (2007)
DSI Prophet 12 (2014)
Sequential Prophet-6 (2015)
Arturia developed a softsynth version of the Prophet 5, the Prophet V. Prophet V also includes a recreation of the Prophet VS, a synthesizer manufactured by Sequential Circuits in 1986. Elements of the two synthesizers can be combined in a 'hybrid' mode. The softsynth closely recreates the layout of the original analog synthesizer, though there were some differences in programming, notably through some restrictions on the envelope generator.[9]
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In January 2015, Smith announced that Yamaha's president, Takuya Nakata, had granted him rights to the Sequential brand, which he had been unable to use following the company's acquisition. The release of the name coincided with Smith's debut of the Prophet-6, a new analog polyphonic synthesizer based on the Prophet-5 with additional features. Of the Prophet-6, Smith said 'I wanted to celebrate the return of Sequential in the best way I could—by building the most awesome-sounding, modern analog poly synth possible. The Prophet-6 is a tribute to Sequential's most famous instrument, the Prophet-5. I think of it as vintage with a modern twist.'[10]
References[edit]
- ^ abcdefgReid, Gordon (March 1999). 'Sequential Circuits – Prophet Synthesizers 5 & 10 (Retro)'. Sound on Sound. Archived from the original on 3 February 2016. Retrieved January 23, 2015.
- ^Preve, Francis (23 July 2012). 'Dave Smith in His Own Words'. Keyboardmag. Archived from the original on 2013-06-11. Retrieved 2018-10-17.
- ^ abcd'The 14 most important synths in electronic music history – and the musicians who use them'. FACT Magazine: Music News, New Music. 2016-09-15. Retrieved 2018-10-17.
- ^'The 14 synthesizers that shaped modern music'. The Vinyl Factory. 2014-03-04. Retrieved 2018-03-05.
- ^Paul Tingen. 'John Carpenter - Film Director & Composer'. Sound on Sound. No. July 2016.
- ^Seth Stevenson, What Is the Time Signature of the Ominous Electronic Score of The Terminator?, Slate, Published 26 February 2014, Accessed 27 February 2014.
- ^ ab'Sequential Circuits Prophet 5'. Vintage Synth Explorer. Retrieved 2015-12-26.
- ^Forrest, Peter (1996). The A-Z of Analogue Synthesisers Part Two. Short Run Press Ltd. p. 114.
- ^Reid, Gordon (September 2006). 'Arturia Prophet V'. Sound on Sound. Retrieved January 23, 2015.
- ^'Sequential is Back!'. Dave Smith Instruments. January 22, 2015. Retrieved January 23, 2015.
Further reading[edit]
Wikimedia Commons has media related to Sequential Circuits Prophet-5. |
- 'Prophet 5'. Music Technology. Vol. 2 no. 12. October 1988. p. 42. ISSN0957-6606. OCLC24835173.
- 'Retro: SCI Prophet 5'. Future Music. No. 47. Future Publishing. September 1996. p. 53. ISSN0967-0378. OCLC1032779031.
External links[edit]
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Prophet-5&oldid=921058970'