The first SYSTEM 15 synth modules hit the market in the early '70s and were outrageously pricey. Back then, they were mostly discrete transistor designs because op - amps were very costly. This discrete circuitry gave the modules a unique sound, used by legends like Keith Emerson, Stevie Wonder, and Tangerine Dream to create some of the greatest music ever. Modular synths were a game - changer in electronic music, and now, it's getting even better.
Features:
- Pre - assembled 'SYSTEM 15' modular synth with 16 modules that offer a vintage '70s sound.
- 1x 921A Oscillator Driver with 2x 921B VCOs and 1x 921 VCO for 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 for converting multiple V - trig to S - trig for compatibility with other Eurorack modules.
- 1x 914 Fixed Filter Bank with 12 active bandpass filters from 125 Hz - 5.6 kHz and LP/HP filters.
- 1x 923 Filters module with 6 dB low and high pass filters and white/pink noise sources.
- 1x 904B Voltage Controlled High Pass Filter and 1x 904A Voltage Controlled Low Pass Filter.
- 2x 902 Voltage Controlled Amplifiers with 3 summed CV inputs and dual audio inputs/outputs.
- 2x 911 Envelop Generators with S - trig inputs and CV outputs.
- 1x BP56 blank panel for expanding with modules like the 960 sequential controller.
- 1x BP28 and 1x BP12 blank panels for 96 HP of expansion space.
- 1x CM1A MIDI - to - CV converter for control via MIDI keyboards, DAW, V - trig, or S - trig outputs.
- 1x Eurorack GO case with PSU included.




Using your Behringer SYSTEM 15 modular synthesizer is easy. First, connect it to a power source using the included PSU in the Eurorack GO case. You can start by plugging in your MIDI keyboard or connecting to a DAW via the CM1A MIDI - to - CV converter. This allows you to control the synth and use its V - trig or S - trig outputs.
When using the modules, you can experiment with different combinations. For example, use the 921A Oscillator Driver with the VCOs to create unique voices. Adjust the 904B and 904A filters to shape the sound as you like.
Here are some things to keep in mind. Avoid exposing the synth to extreme temperatures or humidity. Don't touch the internal components with wet hands. If you want to expand the synth, use the blank panels to add more modules, but make sure to follow the instructions carefully.
For maintenance, keep the synth clean by gently wiping it with a dry cloth. Check the connections regularly to ensure they are secure. If you encounter any issues, refer to the user manual or contact Behringer's customer support.