Behringer 921B Oscillator Eurorack Module
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Description
The Behringer 921B oscillator module authentically reproduces the circuitry of a legendary analog oscillator, packing four classic waveshapes into just 8 HP. Dial in sawtooth, triangle, sine or square waves to form the foundation of your modular patches. Shape your sounds further through the 921B's flexible modulation inputs. Use the pulse-width modulation input to alter the duty cycle of square and rectangle waves. Control oscillator frequency through the dedicated FM input. For more advanced sound design, take advantage of oscillator sync to interconnect multiple 921B units. Everything you need for vintage analog vibes in a compact, Eurorack-ready package.
Craft Sounds With Four Iconic Waveshapes
The 921B module puts four essential analog waveshapes under your control. Select between sine, triangle, sawtooth and square/rectangle waves to start designing your own unique sounds. Use the dedicated wave shape control to smoothly transition between more rounded sine/triangle tones and the sharper attacks of sawtooth and square waves. Whether you're aiming for soft pads, biting leads or rich basses, the 921B provides the raw waveform material to craft your sonic visions.
Modulate Timbre With Pulse-Width and Frequency Inputs
Take your 921B oscillator tones to the next level with the built-in modulation inputs. The pulse-width modulation input lets you change the duty cycle of rectangle and square waves for sweeping tonal shifts. Connect an LFO or envelope generator to add movement and animation. The frequency modulation input gives you voltage control over oscillator pitch. Patch in another LFO or envelope to create vibrato effects and crazy sonic sweeps. Both inputs are optimized for 1V/octave control signals from other modules or MIDI-CV converters.
Sync Multiple Oscillators for Advanced Sound Design
The oscillator sync input unlocks creative new possibilities by letting you interconnect multiple 921B units. One oscillator becomes the leader and the other a follower, resulting in complex interactions between their waveforms. Engage soft or hard sync modes to dramatically reshape the follower oscillator's waves. Sync effects open up a whole new world of tones, from edgy leads to video game-style bloops and blips.
Part of an Affordable Eurorack Synth System
The 921B delivers an authentic reproduction of a legendary analog VCO in a compact, Eurorack-friendly format. It belongs to Behringer's series of Eurorack modules inspired by their classic synths from the '70s and '80s. Build your own custom modular synthesizer on a budget, combining the 921B with other modules like the 921A driver, 923 filter and 925 dual VCA. With Behringer's affordable system, you can own iconic analog gear in a Eurorack case.
Features
- Vintage-sounding 921B VCO module from the '70s in Eurorack format
- Controlled via the 921A oscillator drive module, or may be used as a free-running LFO
- Separate audio outs for each of the four waveforms: sine, triangular, sawtooth and rectangular
- Dedicated oscillator sync input and a switch for selecting either strong or weak sync
- Parallel link jacks for frequency and width connections to 921A and multiple 921B oscillators
- Frequency and width jacks can also be used as external I/O providing even more creative possibilities
- From a series of modules inspired by the System 55, 35 and 15 series synths
- Reproduces circuitry from famous pop, rock and jazz records beginning in the 1970s
- Designed and engineered in the United Kingdom
Specs
- 8 HP
- 30 mA +12 V
- 45 mA -12 V