RSF Kobol

The RSF Kobol is a French monophonic synthesizer released in 1978, described by some as "the French Minimoog".[3] It could process external sounds to through the envelope and filter section. It was created by Ruben and Serge Fernandez. Fewer than 200[4] were made as they were not mass-produced. The Kobol is a very versatile instrument, offering many sought-after features of other analogue synthesizers of its time.[5]

RSF Kobol
ManufacturerRSF
DatesRSF Kobol 1978, Kobol Rack (Expander): 1979[1]
Price550 Euros[2]
Technical specifications
PolyphonyMonophonic
Timbrality1 Part
Oscillator2 VCO's; triangle, square, saw, pulse; variable sweep
LFO1 LFO, triangle, square waveforms
Filter1 VCF, 24db low pass
Storage memory16 Memory slots
EffectsDecay
Input/output
Keyboard44 Full Size keys
External controlCV for VCO, CV for VCF, gate control, clock trigger input, external audio process line input

Rack Mount

A rack-mount system was released in 1979.[6] There were four different types: The Kobol Rack (Expander I) was only the VCO/VCF/VCA/LFO sections of the Kobol in a rack module. The Expander 2 was an add-on to the Kobol that added new processing modules such as ring modulation, sample-hold, and envelope followers as well as extra VCA and LFO modules.

Best Known for Sounds

"Fat" basses and convincing percussions and leads.[7]

Notable users

References
  1. "RSF Kobol". Retrieved 22 May 2018.
  2. "RSF Kobol Expander". www.jarrography.free.fr. Retrieved 2018-05-30.
  3. "RSF Kobol (1978) | Aerozone JMJ". aerozonejmj.fr (in French). Retrieved 2018-06-12.
  4. "RSF Kobol Expander II". Encyclotronic. Retrieved 2018-06-12.
  5. "RSF Kobol". Encyclotronic. Retrieved 2018-06-12.
  6. "RSF Kobol Expander | Vintage Synth Explorer". www.vintagesynth.com. Retrieved 2018-05-30.
  7. Moogulator, Mic Irmer. "RSF Kobol Keyboard Analog Synthesizer step sequencer". www.sequencer.de. Retrieved 2018-06-12.
  8. "Bon Harris (Nitzer Ebb) On Synthesizers". Voltage Control Lab. 2016-05-03. Retrieved 2021-11-25.


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