KORG

KORG Mono/Poly 4-Voice Analog Synthesizer w/ModyPoly & HiRes Mods

Name: KORG Mono/Poly 4-Voice Analog Synthesizer w/ModyPoly & HiRes Mods
Price: 4,250.00 AUD
Availability: InStock

USED

$4,250.00 AUD

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KORG Mono/Poly 4-Voice Analog Synthesizer w/ Tubbutec ModyPoly & HiRes Mods

The KORG Mono/Poly remains one of the most distinctive and characterful analogue synthesizers to emerge from the early 1980s. Originally released as a four-VCO performance synthesizer with both monophonic and paraphonic capabilities, the Mono/Poly developed a reputation for aggressive oscillator sync tones, animated arpeggiator patterns, and unusually flexible oscillator routing that still feels unique decades later.

This example has been upgraded with the Tubbutec ModyPoly and HiRes modifications, significantly expanding the original instrument's polyphonic behaviour, MIDI integration, sequencing capabilities, tuning precision, and live performance flexibility while preserving the unmistakable sound and immediacy of the original hardware.

The core architecture remains deeply appealing: four analogue VCOs, dual envelopes, dual LFOs, onboard effects, CV/Gate connectivity, and the famous arpeggiator capable of cycling through oscillators individually for complex animated sequences and shifting timbral movement.

As heard on records and performances by artists including MGMT, Chromeo, and Legowelt, the Mono/Poly occupies a space somewhere between classic polysynth, unstable monosynth, and experimental analogue performance instrument.

Original Mono/Poly Features

Four analogue VCOs
Monophonic and paraphonic operation
Oscillator sync and cross modulation
Two LFOs
Two envelope generators
Built-in effects section
Arpeggiator with oscillator cycling functionality
CV/Gate and Trigger inputs
Rich, animated analogue tone with aggressive sync textures and layered detuning possibilities

Tubbutec ModyPoly Upgrade

The installed Tubbutec ModyPoly upgrade substantially modernises the Mono/Poly while integrating tightly with the original panel controls and workflow.

Added functionality includes:

MIDI input and output
Sustain pedal input
Additional play modes:
2-voice mode
3-voice mode
Polychord mode
Extended unison mode
Powerarp arpeggiator/sequencer functionality
Sample & Hold LFO
Fast triangle LFO for filter modulation
MIDI clock synchronisation
Arpeggiator triggering control
MIDI filter and pitch bend control
MIDI output for:
Arpeggiator patterns
Chords
Powerarp sequences
Full access to added functions directly from the front panel
Suitable for live performance without menu-diving or external editors

HiRes Upgrade Features

The additional HiRes modification further expands tuning precision and expressive control.

Features include:

Fully polyphonic portamento
Microtuning support
Custom tuning scales
High precision pitch bend via 16-bit DAC
Approximate pitch bend resolution of 0.2 cents

Why The Mono/Poly Still Matters

The Mono/Poly occupies a very particular corner of analogue synthesis history. It is neither a conventional polysynth nor a straightforward monosynth. The interaction between its four oscillators, oscillator cycling arpeggiator, sync architecture, and paraphonic behaviour produces textures and movement that remain difficult to replicate convincingly with modern instruments.

With the addition of the Tubbutec upgrades, the instrument becomes substantially more flexible in modern studio and live environments while retaining the immediacy and instability that made the original so compelling.