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Mint Condition with 6 Month Alto Music Warranty


MS-20 mini
Monophonic Analog Synthesizer
The classic MS-20 –recreated in mini size!
An analog synthesizer featuring the original circuitry from 1978 
Korg’s MS-20 monophonic synthesizer, first introduced in 1978, is still a coveted instrument to this day, thanks to its thick, robust sound, its powerful, iconic analog filter, and its versatile patching options. Over 300,000 people have enjoyed the distinct MS-20 sounds from the original, from Korg’s MS-20 plug-in synth, or the iMS-20 iPad app.
Today, the sounds of the MS-20 have been reborn in hardware, as the MS-20 Mini. The same engineers who developed the original MS-20 have perfectly reproduced its circuitry and fit into a body that’s been shrunk to 86% of the original size, yet retains the distinctive look of the original. 
The MS-20 mini will amaze you with its absolutely authentic analog synth sound.
Comments from the developers
Fifty years have passed since Korg was founded, and we have once again put our hand to an analog synthesizer. We took particular care to deliver smooth parameter adjustments, which are a distinctive feature of analog synthesizers. We also took special care to completely reproduce the original specifications of the MS-20. The analog circuits we designed 35 years ago still deliver the same unbeatable, powerful sound, from the ultra-low to the ultra-high range.
Overseen by the engineers of the original MS-20, a complete replication of the original analog circuitry
2VCO / 2VCA / 2VCF / 2EG / 1LFO structure
Self-oscillating high-pass/low-pass filters with distinctive distortion
External signal processor (ESP)
Extremely flexible patching system
Miniature MS-20 that's 86% of the original size
MIDI IN and USB connector
Replicates every detail of the original, down to the package binding and the included manual
< Control Section >
C - C 37-notes (3 octaves), mini keyboard designed specifically for the MS-20 mini
Voltage Controlled Oscillator 1 (VCO 1):
Scale (32', 16', 8', 4') (6 octaves, +cent, -cent)
Wave form (Triangle, Sawtooth, PW-Square, White Noise) (4 modes)
Pulse width adjust 1:1 - 1:infinity
Voltage Controlled Oscillator 2 (VCO 2):
Scale (16', 8', 4', 2') (6 octaves, +cent, -cent)
Wave form (Sawtooth, Square, Pulse, Ring modulator) (4 modes)
Pitch (± 1 octave)
VCO Master control: Master tune (± 100cent):
Portamento (max. 10sec)
Frequency modulation intensity by MG/T.EXT (-5V - +5V)
Frequency modulation intensity by EG1/EXT (-5V - 0V)
VCO Mixer:
VCO 1 Level
VCO 2 Level
Voltage Controlled High Pass Filter (VCF HPF):
Cutoff frequency (50Hz - 15,000Hz)
Peak (flat - self OSC)
Cutoff frequency modulation intensity by MG/T.EXT (-5V - +5V)
Cutoff frequency modulation intensity by EG2/EXT (-5V - +5V)
Voltage Controlled Low Pass Filter (VCF LPF):
Cutoff frequency (50Hz - 15,000Hz)
Peak (flat - self OSC)
Cutoff frequency modulation intensity by MG/T.EXT (-5V - +5V)
Cutoff frequency modulation intensity by EG2/EXT (-5V - +5V)
Envelope Generator 1:
Delay time (10sec)
Attack time (10sec)
Release time (10sec)
Envelope Generator 2:
Hold time (20sec)
Attack time (10sec)
Decay time (10sec)
Sustain level (0V - 5V)
Release time (10sec)
Modulation Generator (LFO):
Wave form (Positive Sawtooth - Triangle - Negative Sawtooth, Wide Pulse - Square - Narrow Pulse)
Frequency (0.1Hz - 20Hz)
Manual controller:
Control wheel (center click)
Momentary switch -->GND
Power switch and Volume:
LED (KBD trigger, Modulation Generator rate, Power ON )
< External Signal Processor >
Control section:
Input signal level
Low cut frequency (50Hz - 2,500Hz)
High cut frequency (100Hz - 5,000Hz)
CV adjust
Threshold level
Input and Output:
Signal In
Amplifier Out
Band pass filter Out
CV Out (0 - +8.4V)
ENV Out (0 - +5V)
Trig Out (+5V-->GND)
Indicator (LED):
Peak indicator
Trigger indicator
< Patch Panel >
Keyboard control voltage output (Exponential) (0 - +8V)
Keyboard trigger output (+5V-->GND)
VCO-1 + VCO-2 control voltage input (Linear response)(0 - +8V)
VCO-2 control voltage input (Linear response) (0 - +8V)
VCO-1 + VCO-2 external frequency control input (OCT/V) (-5V - +5V)
External signal input (3Vp-p max.)
External High pass filter cutoff frequency control input (2OCT/V) (-5V - +5V)
External Low pass filter cutoff frequency control input (2OCT/V) (-5V - +5V)
Total external modulation input (T.EXT)(-5V - +5V)
External initial gain control input (0 - +5V)
EG 1 envelope signal normal output (-5V - 0V)
EG 1 envelope signal reverse output (+5V - 0V)
EG 1 + EG 2 trigger input (-->GND)
EG 1 trigger input (-->GND)
EG 2 envelope signal reverse output (+5V - 0V)
Triangle output (Positive Sawtooth - Triangle - Negative Sawtooth) (5Vp-p)
Rectangle output (Wide Pulse - Square - Narrow Pulse)(0 - +5V)
Noise Generator:
Pink noise output (5Vp-p)
White noise output (5Vp-p)
Sample and Hold:
Clock trigger input (-->GND)
Sample signal input (5Vp-p max.)
S/H output (5Vp-p max.)
Modulation VCA:
Control voltage input (0 - +5V)
Signal input (-5V - +5V)
Signal output (-5V - +5V)
Manual controller:
Control wheel output (-5V<--0V-->+5V)
Momentary switch output (-->GND)
Signal out:
Signal output (mono 1/8" mini phone jack, 2Vp-p output impedance 3.5k ?)
Head phones:
Head phones output (Stereo 1/8" mini phone jack, 33 ? 48mW)
Type B, USB-MIDI Input/Output
* Only note messages (velocity is not used) can be transmitted and received.
MIDI Input
*Only note messages (velocity is not used) can be transmitted and received.
Power Consumption:
Power Supply:
Dimensions (W x D x H): a
493 ×257 ×208 mm / 19.41 x 10.12 x 8.19 inches
4.8 kg / 10.58 lbs.
AC adaptor (9V/1.7A), Patch Cord x 10

Product Specs

Mint (Used)
Mint items are in essentially new original condition but have been opened or played.learn more
Brand Korg
Model MS20MINI
Categories Analog Synths
Made In United States
Number of Keys 37 Keys

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Return Window

This product can be returned within 30 days of receipt.

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Special Conditions

Alto Music does accept returns on unopened/unused products within 30 business days of the purchase date. If the product has been opened/used we may charge up to 50% restocking fee from your refund if the product/packaging is not returned in the exact listing condition. Alto Music does reserve the right to refuse any return that is opened/used and not in the same new condition as when originally shipped to the customer.

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Alto Music

Middletown, NY, United States
Joined: Jul 2014

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Korg MS-20 Mini Monophonic Analog Synthesizer MS20
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