Based on the legendary SYSTEM-100M modular synthesizer, the SYSTEM-500 is a fully analog recreation of one of the most sought after electronic instruments of all time. Newly designed  for the Eurorack format, the SYSTEM-500 provides the classic character and usability of the original with all the advantages of a contemporary instrument. Made in the USA and assembled in Japan, the SYSTEM-500 is built to exacting standards with high quality components and sturdy controls. And it’s surprisingly inexpensive, turning the fantasy of owning this legendary instrument into reality.

The 521 Dual VCF (voltage controlled filter) module boasts two low pass filters to modify the timbre of audio sources. Each filter has dedicated controls for frequency cutoff, resonance, and a fixed high pass filter with two cutoff points which can be set by switch. Audio and CV input mixers per channel allow the blending of multiple audio signals and modulation sources.

The SYSTEM-500 is a set of Eurorack format modules that can be mixed and matched in any combination to create the ultimate Roland modular synthesizer rig. Each module is fully analog and has been designed for maximum compatibility with the huge world of modern synthesizer and effects modules. The SYSTEM-500 is a compact, powerful system that opens up myriad possibilities for sound design and musical exploration.


  • Three audio inputs for both VCFs
  • Frequency and Resonance controls for both VCFs
  • Two Frequency CV inputs with dedicated amount sliders
  • Toggle Switches for changing filters to Highpass filters
  • 1v/Oct tracking input

Product Specs

Brand New (New)
System-500 521 Dual Low Pass VCF + Mixer

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Perfect Circuit
Joined Jul 2015
Burbank, CA, United States


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Perfect Circuit

Burbank, CA, United States
Joined: Jul 2015

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