10results SYSTEM-500 505 VCF Classic System. New Format. View Product SYSTEM-500 510 SYNTH Classic System. New Format. View Product SYSTEM-500 512 Modular VCO The 512 Dual VCO (voltage controlled oscillator) is a single module consisting of two voltage controlled oscillators. View Product SYSTEM-500 521 Modular VCF The 521 Dual VCF (voltage controlled filter) module features two separate low pass filters for modifying the timbre of audio sources. View Product SYSTEM-500 530 Modular VCA The 530 Dual VCA (voltage controlled Amplifier) features two independent voltage controlled amplifiers for controlling the loudness of audio signals. View Product SYSTEM-500 531 MIX Classic System. New Format. View Product SYSTEM-500 540 Modular 2ENV-LFO The 540 Dual Envelope Generator and LFO (low frequency oscillator) is a multi-purpose modulation source. View Product SYSTEM-500 555 LAG / S&H Classic System. New Format. View Product SYSTEM-500 572 Modular PHASE SHIFTER/DELAY/LFO The 572 includes a five-stage phase shifter, analog audio delay, a control voltage gate delay, and an LFO. View Product SYSTEM-500 Complete Set Modular Synthesizer Fully analog modular synthesizer with multiple oscillators, filters, and effects in a versatile custom case with top-quality patch cables. View Product