Burbank, CA, United States
About this listing
The Verbos Electronics ‘Complex Oscillator’ is a master oscillator Eurorack module configured with a voltage controlled waveshaper and a modulation oscillator that can be used for FM or AM. In the West Coast philosophy of synthesis, one oscillator modulating another is a classic way of creating rich timbres. Voltage control of the modulation and of the wave shape is essential for evolving the sounds from whatever CV sources.
The wave shape of the modulation can be set to triangle, square or saw, each with a dedicated output. Modulation amount can be voltage controlled with a reversing attenuator on the CV input. The master oscillator has dedicated outputs for triangle, square and sine waves. The master output can blend from sine to square to saw to folded sine all from voltage control with reversing attenuators on all of the CV inputs.
The oscillators are analog triangle cores with discrete transistor exponential converters. Each has inputs for linear and exponential FM. Both have 1 volt/octave trimmed CV inputs as well.
Features
Complex Oscillator Module
Two Oscillators including the Modulation Oscillator (Left Side) and the Master Oscillator (Right Side)
Modulation Oscillator Frequency Range: 1 Cycle per minute to 500Hz (from panel “Frequency” control)
Modulation Oscillator Waveform Outputs: Triangle, Square, and Sawtooth
Modulation Oscillator F.M. Input with Attenuator
Modulation Oscillator C.V. Input with Reversing Attenuator
Calibrated 1V/OCT Input also provided for Modulation Oscillator
Master Oscillator Frequency Range: 3Hz to 20kHz (from panel “Frequency” Control)
Master Oscillator Waveform Outputs: Triangle, Square, Sine, and Master (feeds from a more complex waveshaping circuit)
Master Oscillator F.M. Input with Attenuator
Master Oscillator C.V. Input with Reversing Attenuator
Calibrated 1V/OCT Input also provide for Master Oscillator
Harmonics Section for Timbre, Symmetry and Order parameters on the “Master” Output Signal with Control Voltage Input each with a Reversing Attenuator
Modulation Section with Toggle Switch to select AM, FM, or OFF and another Toggle Switch for Waveshape Selection (Triangle, Square, Sawtooth)
Modulation Index Control
Modulation Amount CV Input with Reversing Attenuator
FM Operation: Turning up the “Mod Amount” will add frequency modulation of the Master Oscillator by the Modulation Oscillator in whichever wave shape is selected with the Modulation Section Waveshape Toggle Switch
AM Operation: Turning up the “Mod Amount” will add amplitude modulation of the signal on the Master Oscillator’s “Master” Output by the Modulation Oscillator in whichever waveshape is selected with the Modulation Section Waveshape Toggle Switch (At the maximum “Mod Amount” setting the effect is like a ring modulator and varying amounts of amplitude modulation on the way up)
Modulation Section Sync Toggle Switch: When flipped left caused the Modulation Oscillator to soft sync to the Master Oscillator, creating useful variation in frequency and amplitude modulated tones
Price$942
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