The Instruō Cš-L is a dual analog oscillator optimized for generating complex waveforms. It features two contrasting discrete circuit oscillators that are normalled to each other, offering a variety of simultaneous modulation routings. The resulting harmonic timbres go far beyond traditional subtractive synthesis.

It builds on the classic complex oscillator paradigm prominent in West Coast synthesis philosophy. Typical cross modulation is expanded with the inclusion of signal multiplication/amplitude modulation, a wavefolder per oscillator, final waveform symmetry biasing, classic and contemporary PWM,  a global modulation index bus, and a digitally controlled routing scheme that can be configured on the fly.

The two separate oscillator cores, simultaneous access to all included waveforms (both classic and contemporary), and the ability for bi-directional modulation make the Cš-L truly allow the user to shape sound like never before.

Size

26HP
Depth: 42mm

Power

+12V: 200mA
–12V: 80mA

Specifications

• Sawtooth core voltage-controlled oscillator (Oscillator A – Top)
• Waveforms: Sine, Triangle, Sawtooth, Pulse, wavefold final
• Triangle core voltage-controlled oscillator (Oscillator B – Bottom)
• Waveforms: Sine, Triangle, Square/Sub, double pulse, wavefold final
• 1V/octave, Coarse and Fine pitch controls per oscillator
• Frequency modulation input per oscillator, linear or exponential response, with attenuators
• LFO range switch for oscillator A
• Switchable link between 1V/octave inputs for parallel tracking
• Multiply output with three modulator behavior options
• CV over each wavefolder with attenuverters
• Symmetry offset control for each wavefolder with attenuverters
• CV-controllable modulation bus (INDEX) with versatile definable internal routing