Korg Monotron Duo Analogue Ribbon Synthesizer

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Monotron Duo $49.99 1 left
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  • full-fledged, true analog synthesizer w/ VCO, VCF, LFO, & X-MOD
  • 2 analog oscillators (VCO) with individual tunings
  • original analog (VCF) Filter taken from the classic MS-10 & MS-20
  • edgy X-MOD (with Intensity knob) circuit from Korgs classic Mono/Poly
  • VCF with Cutoff and Peak Control
  • easy-to-play ribbon keyboard with scale select
  • input jack lets you apply filter to any audio source
  • battery operation, pocket sized
  • internal speaker/headphone jack lets you enjoy the sound anywhere
  • fun-to-tweak controls


The groundbreaking original monotron, with its sought-after MS20 filter and huge sound in a pocket-sized format, brought true analog goodness to the masses. Now, the monotron family has expanded to include the Monotron DUO to add even more options to your analog arsenal. The monotron DUO inherits the functions of the original monotron and adds these unique features:

Dual Oscillator / X-Mod Design

Offering two oscillators, the monotron DUO adds an extra dimension, delivering an even more extreme sound. Tune the oscillators in unison for a rich, thick, analog tone. Tune them in intervals for classic soloing sounds and generating new effects. The X-MOD (cross modulation) circuit taken from Korg's classic Mono/Poly can introduce a mild or razor-sharp edge to the overall sound; everything from a rich vibrato to extreme metallic sounds reminiscent of an FM synth.

Enhanced Ribbon Controller Keyboard

The monotron DUO's ribbon controller keyboard now features the familiar Scale function used on the KAOSSILATOR. You can use this button to select one of four scales: Chromatic, Major, Minor, or Off. Choose the Chromatic scale to play precise pitches as on a piano, or choose Major or Minor to generate musically coherent phrases by simply sliding your finger around on the keyboard.


  • Synthesizer structure: 2 VCOs (Square Wave) with X-Mod; 1 VCF
  • Knobs: VCO1 Pitch, X-MOD Int., VCO2 Pitch, VCF Cutoff, VCF Peak
  • Switches: Standby / VCO1 / VCO1+2 / Scale Select Button
  • Controller: Ribbon Controller with Scale Select
  • Volume: Headphone Volume
  • Aux Input: 1/8" Stereo Jack
  • Headphone Output: 1/8" Stereo Jack
  • Speaker: Miniature internal; Disabled when headphones are in use
  • Power Supply: AAA Alkalines (x2)
  • Dimensions: (W x D x H)  4.72" x 2.83" x 1.10"
  • Weight: 3.35 oz. (without batteries)