Supercritical Demon Core Eurorack Oscillator Module

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Supercritical Demon Core Eurorack Oscillator Module

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Eurorack Digital Oscillator Module




The catch of our Demon Core Oscillator is in a new innovation called the MDCO (Multiperiod Digitally Controlled Oscillator) which allows a single analog oscillator core to form multiple simultaneous waves with pitch and phase control. In practice this means 16 analog voices which can be controlled separately.

The sonic gravy is found in the fine tuning of the voices. They can be set in strict digital tuning, be statically detuned (spread) or set to drift (Core Stability). Or both. The spread control takes us from a brutalist digital cityscape to super saw planet while the core stability ranges from vintage DCO synthesizers to a broken and misbehaving vintage VCO. On the middle ground of both controls the sound resembles that of the old warm VCO designs of the 80’s (which we are very fond of).

The basic building blocks are saw and pulse waves (with PWM) but more complex waveforms can be created using two or more unison waves and triggering the phase sync via the sync trigger input. Simultaneous unison waves in the same phase increase the amplitude but when slightly detuned they generate strange harmonics and form unusual waveforms. If more voices are used, spread is opened slightly and the sync trigger input is used with gate signal, the phase sync acts like a decay envelope producing flanging effect. This can be used for massive bass synthesizer sounds.

All of the voices can be configured in different depths of unison and octave stack. Up to 6 octaves are supported. The 16 voices are spread evenly between the octaves.

Since we know the precise tuning of the waves the master tuning can be accurately set in A440 across 6 octaves via a tuning LED. This makes the module handy for practical applications requiring accurate pitch. The 1V/Oct pitch control is calibrated to high precision. A bipolar linear FM with a attenuator controls the master pitch in conjunction with the 1V/oct input.

While the Demon Core Oscillator stores megatons of energy in itself, it can be boosted to maximum yield by attaching the Demon Core Expander to it. Check it out over here.

Tech specs:

12hp, skiff friendly with 25mm depth.
120mA +12V and 20mA -12V
16 configurable voices (octave, stacks)
Saw and pulse waves with PWM ranging from 0-100%
Coarse tune for 6 octave range with half-step increments
Fine tune for ± half step range
A blinking tuning indicator for finding C note in every octave and A440 fine tuning
1V/oct master pitch CV
Linear FM CV (±5V) with attenuator
Combined Spread / PWM CV (±8V) with offset function
Stability CV (±8V) with offset function
Trigger input for synchronizing the phases for all waves
Mono audio output
A function (shift) button to do magic for different controls!
Software updates via audio
Secure shrouded power connector with a supplied power cable


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