2 products
The RSF Modular Model 11 is a rare analog modular synthesizer created by French company RSF (Ruben & Serge Fernandez) in 1976. This towering monophonic system features three oscillators and resembles the ARP 2600 in architecture and capability. It excels at generating dense bass, growls, and textured tones through its generous overdriven sounds and punchy ADSR and filter sections.
The RSF Kobol Expander is the rack-mount version of the French-made Kobol monophonic analog synthesizer, released in 1979. It features two VCOs with continuously sweepable waveforms, a 24dB lowpass filter, two ADS envelopes, an LFO, and a 2x8 step sequencer. With CV/Gate control and external audio processing capabilities, the Kobol Expander is a versatile and highly sought-after vintage analog sound source.