SuperCritical Demon Core Oscillator + Expander (Certified Pre-Owned)

The Demon Core Oscillator is built around our MDCO (Multiperiod Digitally Controlled Oscillator), a unique design where a single analog core generates multiple simultaneous waves with independent pitch and phase control — effectively delivering up to 16 analog voices.

These voices can be tightly tuned, statically detuned, or set to drift, allowing sounds that range from precise digital textures to unstable vintage-style character. At balanced settings, the result recalls the warmth of classic 80s VCO designs.

Based on saw and pulse waves (with PWM), more complex timbres can be created through unison stacking and phase sync. Slight detuning introduces rich harmonics, while sync triggering can produce dynamic, flanging-like effects — especially effective for dense bass sounds.

Voices can be arranged in unison and octave stacks across up to six octaves, with accurate A440 tuning and high-precision 1V/Oct tracking. Linear FM and fine control ensure both musicality and flexibility.

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.

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The Demon Core Expander extends the capabilities of the host oscillator into a fully playable polyphonic instrument. Its core feature is flexible polyphony: all 16 voices can be arranged in a wide range of configurations, from dense unison stacks to expressive multi-voice setups, with support for octave layering.

Polyphony can be controlled via four 1V/Oct CV inputs or MIDI. CV inputs handle the first voices, while MIDI unlocks full polyphonic control and introduces per-voice gating. Although the oscillator itself runs continuously, the expander enables “virtual VCAs” for each voice — all implemented in the analog domain.

Per-voice gating is paired with integrated ADSR envelopes, transforming the oscillator into a powerful pad and string machine. A dedicated gate output, driven by MIDI, allows further interaction with external modules and supports retriggering for more dynamic performance.

MIDI connectivity is handled via 3.5 mm TRS with automatic Type A/B detection, along with a configurable MIDI thru for flexible routing.

Additional controls expand the phase sync behavior, allowing precise shaping of timing from tight, punchy bass to long evolving textures. Extended CV modes provide further control over sync timing and variation, octave stacking depth, and modulation via an internal LFO.

As an expander module, it requires the Demon Core Oscillator to operate.