Behringer 1004 Oscillator Eurorack Module

An authentic re-creation of the dual-core voltage-controlled oscillator from a legendary 1970s modular synthesizer, the Behringer 1004 features discrete transistor circuitry to deliver lush, vintage tones. With five available waveforms sine, triangle, pulse, ramp, and square you have a variety of voices from which to choose. Plus, each waveform is accompanied by a 3-way toggle switch for turning the waveform on or off or inverting the signal; the waveforms are summed together for creating ultra-complex waveshapes. For even more detailed sound shaping, the Behringer 1004 includes CV-controllable pulse width modulation length and depth and dual frequency modulation. Synthesists at Music Bliss especially appreciate the 1004 dual parallel outputs for feeding the signal into two separate chains of Eurorack devices. If you’re spacing out your first Eurorack rig and are looking for an affordable, all-analog VCO, you’ll be astounded by this value-packed module. And seasoned Eurorack users will enjoy augmenting their rigs with classic modular synth sounds that won’t empty their wallets!

FEATURES

• Classic 1004 dual analog VCO module from the 70s
• Authentic reproduction of the circuitry from the 2500 Series
• VCO features 5 waveforms: sine, triangle, square, sawtooth and pulse
• Waveforms can be combined and inversed into the audio outputs
• Output frequency range from 0.03 Hz to 16 kHz in 2 ranges
• VCO range selectable between Low (LFO) or High (Audio)
• Coarse frequency control allows adjustment over 10 octaves
• Fine frequency control adjusts over +/- 1 octave
• Frequency modulation with 2 inputs and controls responding to 1 V/octave
• The width of the pulse waveform can be set manually and controlled dynamically
• Eurorack specs: 16 HP, XX mA +12 V, XX mA -12 V

SPECIFICATIONS

• Inputs
  - FM 1/2 (Type) : 2 x 3.5 mm TS jacks
  - Impedance : 50 kΩ, unbalanced
  - Max input level : 10 V, 1 V/octave
  
  
• Keyboard
  - Type : 3.5 mm TS jack
  - Impedance : 50 kΩ, unbalanced
  - Max input level : 10 V, 1 V/octave
  
  
• PWM
  - Type : 3.5 mm TS jack
  - Impedance : 50 kΩ, unbalanced
  - CV range : ±10 V, 10% per volt
  
  
• Outputs
  - Out (Type) : 2 x 3.5 mm TS jacks
  - Impedance : 1 kΩ, unbalanced
  - Max output level : 10 V p-p
  
  
• Controls
  - Coarse : Sets oscillator frequency (8 octave range)
  - Fine : Oscillator fine adjustment (±1 octave)
  - Range : Select LFO (0.06 Hz - 16 Hz) or audio band (31 Hz - 8 kHz)
  - Enable : Oscillator on/of
  - PW : Pulse width adjustment (5% - 95%)
  - PWM : Modulation depth adjustment (-∞ to unity gain)
  - FM 1/2 : Attenuate FM inputs (-∞ to unity gain)
  - Waveform switches : Select up to 5 waveforms (sine, tri, square, saw, pulse)
  
  
• Power
  - Power supply : Eurorack
  - Current draw : 60 mA (+12 V), 50 mA (-12 V)
  
  
• Physical
  - Dimensions : 46 x 81 x 129 mm (1.8 x 3.2 x 5.1")
  - Rack units : 16 HP
  - Weight : 0.17 kg (0.37 lbs)