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Oscillator Driver for the Behringer 921B Eurorack Oscillator





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The Behringer 921A Oscillator Driver works in conjunction with the Behringer 921B Oscillator module, and both are based on units from a famed 1970s modular synth system. Using the 921A Oscillator Driver, you can alter the frequency of the 921B Oscillator module according to semitones or octaves, selectable with a rocker switch. Additionally, the 921A outputs an adjustable rectangular waveform for pulse width modulation. The 921A is CV-controllable with two summed inputs each for frequency and pulse width, for wild moving modulations. And, unlike the original 1970s unit, the 921A isn’t constrained to affecting one oscillator unit; Behringer has designed it to drive up to 12 parallel oscillators. Synthesists at Sweetwater have enthusiastically hopped on the Eurorack bandwagon, but, for the Eurorack-curious, it can sometimes seem like a costly and confusing endeavor. But, the Behringer System 100 Eurorack modules, including the Behringer 921A Oscillator Driver, are an affordable, simple, and incredible-sounding way to enter the exciting world of Eurorack!





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Behringer 921A Oscillator Driver Eurorack Module Features:


Reproduction of an iconic 1970s oscillator driver module


Works in conjunction with the Behringer 921B Oscillator Eurorack module


Choose between Semitones or Octaves in the frequency section


Rectangular wave output with adjustable width from 10% to 90%


Two summed CV control inputs for both frequency and pulse width


Drive up to 12 Behringer 921B Oscillators in parallel


8HP Eurorack module