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Korg MONOTRONDUO Monotron Duo Analog Ribbon Synthesizer

SKU:  ae00-1383
Manufacturer Part #:  MONOTRONDUO
Korg Monotron Duo Analog Ribbon Synthesizer

Korg puts the thrill of the analog synthesizer into everyone’s hands, with the monotron, the monotron DUO, and the monotron DELAY

Go Anywhere Analog: That was the theme behind the remarkable battery-powered and palm-sized Korg analog synthesizer dubbed the monotron. The powerful and fun-to-play monotron analog synthesizer has been joined by two siblings. The Dual Oscillator monotron DUO offers X-MOD capabilities for generating even more extreme sounds. The monotron DELAY features a Space Delay that can produce intense, analog-like echo effects. Best of all, they’re a blast to play. Each is equipped with a ribbon keyboard and a live, ready-to-be tweaked front panel offering five knobs and a single switch. This simple operation and ease of use invites hours of enjoyment and musical exploration.

Casual users and gadget mavens will quickly enjoy performing melodies, DJs can create dazzling effects on stage, while established players can add analog muscle to their performance – the possibilities are virtually endless. Grab a monotron, monotron DUO, or monotron DELAY, and get in touch with the exciting world of Korg analog synths.

Go Anywhere Analog
A miniature speaker is built into the every monotron. Along with the battery operation and compact size, this feature allows you to enjoy the share the monotron Series analog synthesis sound with your friends, anywhere, at any time. There's also a headphone output that you can use when practicing in private, creating sounds at home, recording, or for connecting to an amplifier or PA system.

VCO + VCF = Modular synthesis building blocks
The basic analog sound-building circuit in each of the monotrons is radically simple: one voltage-controlled oscillator and one voltage-controlled filter. As a result, the process of sound creation is intuitive, and instantly understandable. And it's tons of fun. Each Korg monotron provides the joy of sonic creativity that's at the heart of analog synthesis.

Classic Korg Filtering
The distinctive tone of an analog filter (VCF) can dramatically alter and enrich the sound. The monotron Series uses the same highly acclaimed VCF circuit as KORG's classic MS-10 and MS-20 semi modular synthesizers. Originally released over 30 years ago, these instruments are still coveted today for their aggressive, dynamic filters. The VCF Cutoff knob sets the frequency or tone of the filter; the VCF Peak knob (monotron, monotron DUO) adds emphasis. A powerful filter is an essential aspect of any analog synthesizer, applying dramatic tonal changes to the sound, and projecting an intense personality that will stand out in any live performance.

Fully-patchable Filter
The input jack (AUX input) built into each monotron’s compact body allow you to place any audio source into the signal path, directly before the analog filter. This provides a great way to connect a KAOSSILATOR, a guitar, or a digital audio player to the monotron Series and enjoy tone-bending filter effects.

monotron DUO key features:

  • Two analog oscillators (VCO) with individual tunings

  • Edgy X-MOD (with Intensity knob) circuit from Korg’s classic Mono/Poly

  • VCF with Cutoff and Peak Control

  • Ribbon controller keyboard with Scale Select

  • Original Analog (VCF) Filter taken from the classic MS-10 & MS-20

  • Aux input jack lets you apply filter to any audio source

  • Built-in speaker and battery power for Go Anywhere Analog sound

  • Headphone jack for private use


Synthesizer structure:

    1 VCO (Sawtooth Wave); 1 VCF; 1 LFO


    Standby / LFO to Pitch / LFO to Filter


    VCO Pitch, LFO Rate, LFO Int., VCF Cutoff, VCF Peak


    Ribbon Controller

monotron DUO:

Synthesizer structure:

    2 VCOs (Square Wave) with X-Mod; 1 VCF


    Standby / VCO1 / VCO1+2 Scale Select Button: (Chromatic -> Major -> Minor -> Off)


    VCO1 Pitch, X-MOD Int., VCO2 Pitch, VCF Cutoff, VCF Peak


    Ribbon Controller with Scale Select


monotron DELAY:

Synthesizer structure:

    1 VCO (Sawtooth Wave); 1 VCF; 1 LFO; DELAY


    Standby / LFO ? Shape / LFO ? Shape


    LFO Rate, LFO Int., VCF Cutoff, DELAY Time, DELAY Feedback Rear Panel Trimpot: LFO Shape


    Wide Range Ribbon Controller


monotron Series common specs:


    Headphone Volume

Aux Input:

    1/8" Stereo Jack

Headphone Output:

    1/8" Stereo Jack


    Miniature Internal; Disabled when headphones are in use

Power Supply:

    AAA batteries (x2), recommended alkaline batteries

Battery Life:

    Approximately 8 hours (with alkaline batteries)


    Owner’s Manual, AAA batteries x2 (for verifying operation)

Dimensions (W x D x H):

    120 mm x 72 mm x 28 mm / 4.72” x 2.83” x 1.10”


95g / 3.35 oz. (without batteries)



In stock
Manufacturer Part #:  MONOTRONDUO
Weight:  1.00
Regular Price: $97.99
On Sale For: $69.99

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