Korg Monotron Duo

A pocket-sized analog ribbon synthesizer with two VCOs and X-Mod circuitry

Overview

The Korg Monotron Duo is a compact analog synthesizer built around a ribbon controller keyboard. It expands on the original Monotron by adding a second analog VCO and an X-Mod circuit for cross-modulation. The X-Mod idea came from Korg's early 1980s Mono/Poly synthesizer. That gives the Duo more complex, evolving tones than its predecessor. Korg sold it as a palm-sized, battery-powered instrument. It fits in a pocket and runs without external power. It has a built-in VCF filter and a single headphone output, which works for private monitoring or for routing the signal to other gear.

Specifications

ManufacturerKorg
ModelMonotron Duo
Product typeAnalog Ribbon Synthesizer
Sound GenerationAnalog
Oscillators2 analog VCOs
Modulation FeatureX-Mod circuit
Keyboard TypeRibbon controller
Power SourceBattery-powered
Audio Output1 headphone output
Dimensions (D)2.83"
Weight0.21 lbs

Context

The Monotron Duo is one of three siblings that followed the original Korg Monotron. What sets it apart is the second VCO and the X-Mod. Its cross-modulation feature comes straight from Korg's Mono/Poly synthesizer of the early 1980s.

Market

Current market prices for the Monotron Duo start at $39.00. According to available reports, 13 professional artists use it.

eBay Listings

Korg Monotron Duo vintage synth equipment - eBay listing photo 1
Korg Monotron Duo
$40.00
Korg Monotron Duo vintage synth equipment - eBay listing photo 2
Korg Monotron Duo Analog Ribbon Synthesizer
$49.99
Korg Monotron Duo vintage synth equipment - eBay listing photo 3
Korg Monotron Duo Analog Ribbon Synthesizer
$69.99
Korg Monotron Duo vintage synth equipment - eBay listing photo 4
Korg Monotron Duo Analog Ribbon Synthesizer
$44.99
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