The Moog Subharmonicon is a one-of-a-kind semi-modular analog synthesizer that blends vintage-inspired subharmonic synthesis with intricate polyrhythmic sequencing. Originally released as a limited-edition cult favorite, it’s now widely available and ready to bring a new dimension of rhythm and harmony to your synth setup.

Driven by two VCOs and four suboscillators, Subharmonicon can generate rich, layered tones — from deep sub-bass to lush pseudo-polyphonic chords. Its innovative sequencing section features two 4-step sequencers and four rhythm generators capable of producing swirling, off-kilter grooves and evolving harmonic textures that defy traditional time signatures.

With a 32-point patchbay, analog ladder filter, and Eurorack compatibility, the Subharmonicon is just as powerful as it is flexible — ideal as a desktop unit or as the rhythmic heart of a modular system.

Features

• 2 Analog VCOs with 4 subharmonic generators for rich harmonic layering
• 4-pole resonant lowpass filter with VCA and independent attack/decay envelopes
• Dual 4-step sequencers and 4 rhythm generators for complex polyrhythms
• Create 6-note stacked chords or deep monophonic tones
• Manual tempo control or clock sync to Eurorack and external gear
• 32-point patchbay for deep modular integration and CV routing
• Fully Eurorack-compatible (60HP) or standalone desktop use
• Ideal companion for Moog Mother-32 and DFAM

Specs

• Type: Semi-modular Desktop Synthesizer and Sequencer
• Analog/Digital: Analog
• Polyphony: Monophonic (with pseudo-polyphonic layering)
• Oscillators: 2 x VCO, 4 x Subharmonic
• Waveforms: Sawtooth, Square
• Sequencer: 2 x 4-step, Polyrhythm Generator, Selectable Quantization
• Envelope Generators: VCA + VCF (attack, decay)
• Filter: Moog Ladder Filter, 4-pole (24dB/oct) Lowpass
• MIDI I/O: 1 x 1/8" TRS Type A (In)
• Patch Points: 32 x 3.5mm
• Power: 12V DC PSU (included)
• Dimensions (H x W x D): 4.2" x 12.57" x 5.24"
• Weight: 3.5 lbs.