The RSF Kobol is a French

monophonic Monaural sound or monophonic sound (often shortened to mono) is sound intended to be heard as if it were emanating from one position. This contrasts with stereophonic sound or ''stereo'', which uses two separate audio channels to reproduce sou ...

synthesizer A synthesizer (also synthesiser or synth) is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis a ...

released in 1978, described by some as "the French

Minimoog The Minimoog is an analog synthesizer first manufactured by Moog Music between 1970 and 1981. Designed as a more affordable, portable version of the modular Moog synthesizer, it was the first synthesizer sold in retail stores. It was first popul ...

". It could process external sounds through the envelope and filter section. It was created by Ruben and Serge Fernandez. Fewer than 200 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.

Rack Mount

A rack-mount system was released in 1979. 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 In electronics, ring modulation is a signal processing function, an implementation of frequency mixing, in which two signals are combined to yield an output signal. One signal, called the carrier, is typically a sine wave or another simple w ...

, sample-hold, and envelope followers as well as extra VCA and LFO modules.

Best Known for Sounds

"Fat" basses and convincing percussions and leads.

Notable users

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References

Monophonic synthesizers Analog synthesizers {{Electronic-musical-instrument-stub