RMI Harmonic Synthesizer
The Harmonic Synthesizer was a monophonic synthesizer[1] that was first produced in 1974 by the American Rocky Mount Instruments[2] The case was made of black vinyl and had four chrome legs to support it. It features two sets of 16 harmonic drawbars. It also had a number of effects such as tremolo, portamento, noise modulation, oscillator sync and an arpeggiator. The digital circuitry ensures tuning stability during use.[3] A total of 250 units were produced and only four units were ever sold[4] in Europe.[5]
| Harmonic Synthesizer | |
|---|---|
| Manufacturer | Rocky Mount Instruments |
| Dates | 1974-76 |
| Price | £2395 GBP $2995 US |
| Technical specifications | |
| Polyphony | Monophonic |
| Timbrality | 1-part |
| Oscillator | Additive Two independent digital harmonic generators |
| LFO | 2 (Saw Up, Saw Down, Sine, Square) |
| Synthesis type | Analogue and Digital |
| Filter | 1 (24 dB/octave slope (4-pole), Band-pass, Low-pass, Resonance) |
| Velocity expression | Yes |
| Input/output | |
| Keyboard | 48 keys |
| External control | Expression Pedal, CV IN |
Arpeggiator
The sequencer can be programmed to play notes from top to bottom, bottom to the top or random notes when several keys are played at once.
Presets
- Clarinet[6]
- Flute
- Pulse
- Horn
- Reed
Power supply
The unit is powered by an internal 115 V AC power supply.
Notable users
- Jean-Michel Jarre (Used on Oxygene Part 4, Oxygene Part 5, Third Rendez-vous, Oxygene 11).
- Aphex Twin[7]
- Clark Ferguson[8]
- Carlo Curley
References
- "RMI Harmonic Synthesizer (1974) | Aerozone JMJ". aerozonejmj.fr (in French). Retrieved 2018-08-22.
- text., Synthmuseum.com website, including all information and images, is copyrighted as a collective work and is the property of Synthmuseum.com, Inc. This copyright does not supersede any copyrights that may exist for previously copyrighted images and. "Synthmuseum.com - Rocky Mount Instruments : Harmonic Synthesizer". synthmuseum.com.
- "RMI Harmonic Synthesizer". Encyclotronic.
- "RMI Harmonic Synthesizer". www.matrixsynth.com. Retrieved 2018-08-22.
- "RMI Harmonic Synthesizer (1974) | Aerozone JMJ". aerozonejmj.fr (in French). Retrieved 2018-08-22.
- "RMI Harmonic Synthesizer". www.jarrography.free.fr. Retrieved 2018-08-22.
- Inc., Equipboard. "RMI Harmonic Synthesizer". Equipboard.
- "RMI Harmonic Synthesizer". Encyclotronic. Retrieved 2018-08-22.
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