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Korg monotron DUO Dual Oscillator Ribbon Synthesizer

BH #KOMONTRON • MFR #MONOTRONDUO
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Korg monotron DUO Dual Oscillator Ribbon Synthesizer
Key Features
  • Dual Analog Oscillators
  • Completely Portable Design
  • Battery Operation
  • Built-in Speaker
The Korg monotron DUO Dual Oscillator Ribbon Synthesizer is a compact and portable monophonic analog synthesizer with a ribbon keyboard and built-in speaker. The monotron DUO features dual oscillators for creating a wide range of analog sounds and intervals, and its filter is based on the world famous Mono/Poly synthesizer. There is a filter input for routing external audio devices through the monotron DUO's filter, as well as a headphone output for playing and programming sounds privately. The monotron DUO is battery operated, allowing musicians and enthusiasts the flexibility of a powerful mono synthesizer on the go.
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Korg Monotron DUO Overview

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The Korg monotron DUO Dual Oscillator Ribbon Synthesizer is a compact and portable monophonic analog synthesizer with a ribbon keyboard and built-in speaker. The monotron DUO features dual oscillators for creating a wide range of analog sounds and intervals, and its filter is based on the world famous Mono/Poly synthesizer. There is a filter input for routing external audio devices through the monotron DUO's filter, as well as a headphone output for playing and programming sounds privately. The monotron DUO is battery operated, allowing musicians and enthusiasts the flexibility of a powerful mono synthesizer on the go.

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 voltage-controlled filter (VCF) 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

Korg Monotron DUO Specs

Oscillation System
2 VCOs (Square Wave) with X-Mod; 1 VCF
Switches
Standby / VCO1 / VCO1+2
Scale Select Button: (Chromatic -> Major -> Minor -> Off)
Knobs
VCO1 Pitch, X-MOD Int., VCO2 Pitch, VCF Cutoff, VCF Peak
Controller
Wide range ribbon controller
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
AAA batteries (x2), recommended alkaline batteries
Battery Life: Approximately 8 hours (with alkaline batteries)
Dimensions
4.72 x 2.83 x 1.10" (120 x 72 x 28mm)
Weight
3.35 oz (95g) (without batteries)
Packaging Info
Package Weight
0.44 lb
Box Dimensions (LxWxH)
8.5 x 6.05 x 1.45"

Korg Monotron DUO Reviews

Great Synth for Sample Sound Design

By Thomas
Rated 5 out of 5
Date: 2023-07-02

The Korg Monotron Duo is a super fun synth and for the money it sounds fantastic. The controls are limited but what really comes across here is the combination of Korg's legendary MS20 filter with the x-mod from their MonoPoly synth. The oscillators are fixed to square waveforms but so much sonic territory is covered with the interplay of their respective independent pitch setting and the x-mod control. I used this to program a custom sample library and found a great range of beefy analog tones that I have been going to for inspiration. I didn't use the Monotron Duo in this way but it does have a filter-in which could be fun for applying the MS20 filter to external sounds. I would say that it is limited as a straight performance piece but the ability to create samples for use in a DAW or hardware sampler is really unmatched for analog tones at this price point.

Fun Toy

By Nathan
Rated 4 out of 5
Date: 2016-07-12

This is a neat toy instrument that is a great way to learn about analog synths and make some sounds and musix on the go. The scale feature makes this one the easiest to play melodically.

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