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Behringer System 15 Complete Modular Synth

Manufacturer: Behringer
SKU: 450690
Complete "System 15" Modular Synthesizer with 16 Modules, MIDI-to-CV Converter and EURORACK GO case
Availability: Backorder - Contact for ETA
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The first SYSTEM 55, 35 and 15 synth modules came out in the early 70s and tended to be extremely expensive. They were mainly all discrete transistor designs as op-amps at the time were very high cost.

The discrete circuitry gave the modules a very distinctive sound and were used by artists like Keith Emerson, Stevie Wonder, Tangerine Dream and so many more, giving us some of the greatest records we’ve ever heard. Modular synths were a landmark development in electronic music and today, it’s about to get better.


  • Pre-assembled ”SYSTEM 15“ modular synthesizer with 16 vintage sounding modules from the ’70s
  • 1x 921A OSCILLATOR DRIVER with 2x 921B VCOs and 1x 921 VCO provide you with 3 fully featured voices
  • 1x CP3A-M 4 input mixer with master level, 4 outputs and 2 sets of 4 multiples
  • 1x CP35 ATTENUATOR module with 4 linked attenuators, 2 sets of 4 multiples and reference voltages
  • 1x 961 INTERFACE module converts multiple V-trig to S-trig for compatibility with other Eurorack modules
  • 1x 914 FIXED FILTER BANK with 12 active bandpass filters ranging from 125 Hz - 5.6 kHz and LP/HP filters
  • 1x 923 FILTERS module with 6 dB low and high pass filters plus white/pink noise sources
  • 2x 902 VOLTAGE CONTROLLED AMPLIFIERS with 3 summed CV inputs plus dual audio inputs and outputs
  • 2x 911 ENVELOPE GENERATORS with S-trig inputs and CV outputs
  • 1x BP56 blank panel allow for expansion space for additional modules such as 960 sequential controller
  • 1x BP28 and 1x BP12 blank panels for a total of 96 HP expansion space
  • 1x CM1A MIDI-to-CV converter enables control via MIDI keyboards or DAW, V-trig or S-trig outputs
  • 1x EURORACK GO case including PSU


Voltage Control (pitch)

  • Source: Destination
  • External MIDI Keyboard – MIDI Out: CM1A MIDI Interface MIDI In
  • CM1A CV Output: 921A Frequency Input
  • 921A Frequency Output: 921B Frequency Link (in series)


  • 921B Waveform outs (three of four): CP3A-M Inputs
  • CP3A-M Output: 904A Signal Input
  • 904A Signal Output: 902 Signal Input
  • 902 Signal Output: Your mixer/amplifier/DAW

Voltage Control (amplitude)

  • CM1A s-trigger Output: Multiple
  • Multiple Output (two of ): 2 x 911 s-trigger Input
  • 1st 911 Output: 1st 902 Control Input

Voltage Control (modulation)

  • 921 Aux Sine Output: 2nd 902 Signal Input
  • 2nd 902 Signal Output: 921B DC Mod Inputs via Multiple
  • 2nd 911 Output: 2nd 902 Control Input

Watch: Introducing the Behringer SYSTEM-15/35/55


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