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Korg MS-20
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| MS-20 | |
|---|---|
 Korg MS-20 | |
| Manufacturer | Korg |
| Dates | 1978–1983 Mini: 2013-present Kit: 2015 FS: 2021 |
| Price | US$750 Mini: $600 Kit: $1399 FS: $1399 |
| Technical specifications | |
| Polyphony | Monophonic |
| Timbrality | Monotimbral |
| Oscillator | 2 VCOs per voice |
| LFO | 1 |
| Synthesis type | Analog subtractive |
| Filter | 2 high-pass/low-pass |
| Attenuator | 2 VCA 2 envelopes |
| Aftertouch expression | no |
| Velocity expression | no |
| Storage memory | none |
| Effects | none |
| Input/output | |
| Keyboard | 37 keys |
| External control | CV/Gate (all versions) MIDI (Mini, Kit and FS) |
The Korg MS-20 is a patchable semi-modular monophonic analog synthesizer which Korg released in 1978 and which was in production until 1983.[1] It was part of Korg's MS series of instruments, which also included the single oscillator MS-10, the keyboardless MS-50 module, the SQ-10 sequencer, and the VC-10 Vocoder. Additional devices included the MS-01 Foot Controller, MS-02 Interface, MS-03 Signal Processor, and MS-04 Modulation Pedal.
Although the MS-20 follows a conventional subtractive synthesis architecture with oscillators, filter, and VCA, its patch panel allows some rerouting of both audio and modulation signals, alongside an external signal processor. This flexibility led to its resurgence during the analog revival of the late 1990s.
In response to a revived interest in monophonic analog synthesizers, Korg has reintroduced the MS-20 in various formats: the scaled-down MS-20 Mini, unassembled desktop and full-sized versions, and, in 2020, a full-sized reissue known as the MS-20 FS.
Sound and features
[edit]
The MS-20 features two voltage-controlled oscillators (VCOs) with a variety of waveform outputs including triangle, sawtooth, pulse, and white noise for VCO1, and sawtooth, square, and narrow pulse waveforms, as well as a ring modulation option for VCO2. The MS-20 also boasts two voltage-controlled filters (VCFs) in series—a high-pass and a low-pass filter.
The MS-20 has a low frequency oscillator, labeled "modulation generator", which offers unique controls over the rate and shape of the waveform, which is sent to two outputs: pulse and sloped. This allows for a wide range of modulation effects, from changing the duty cycle of the pulse output to varying the shape of the sloped output, making it possible to achieve everything from sawtooth to square and triangle waves.
The synthesizer includes two envelope generators with various parameters, providing control over the dynamics and articulation of the sound. Additionally, the MS-20 features a noise source, a modulation VCA, and options for external control through a frequency-voltage converter and an envelope follower, enabling the synthesizer to be driven by external signals such as a voice or another instrument. Its patch panel allows for extensive connectivity and modulation routing, further expanding its creative possibilities.
MS-20 reissues
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At the 2013 NAMM Show, Korg announced the MS-20 Mini, a compact version of the iconic Korg MS-20, scaled down to 86% of the original's size. The MS-20 Mini was developed by the same engineers responsible for the original instrument, ensuring a faithful replication of the MS-20's original electronic circuits. The modernized version introduces 1/8-inch input and output jacks, a MIDI input jack, and USB MIDI connectivity for both input and output.[2]
The following year, at the 2014 NAMM Show, Korg announced that it would release a limited edition full-size unassembled MS-20. Like the MS-20 Mini, this kit adds MIDI and USB connectivity. Additionally, the MS-20 Kit includes two different filter types: one used in earlier MS20s or a slightly warmer filter used on later MS20s.[3]
At the 2015 NAMM Show, Korg unveiled the MS-20M Kit, an unassembled desktop module version of the MS-20, excluding a keyboard and sold with the Korg SQ-1 step sequencer. This version incorporates self-oscillating high-pass/low-pass filters with distinctive distortion, toggle switches for VCO synchronization and FM, and a choice between the original filter designs. It also features a PWM IN jack for pulse width modulation, compatibility with various CV/GATE standards (Hz/V and V/Oct, S-Trig, and V-Trig), a MIDI IN connector, USB MIDI connectivity, and a junction patch bay for SQ-1 integration.[4][5]
In 2019, Behringer announced its low-cost clone of the MS-20, the K-2.[6]
At the 2020 NAMM Show, Korg announced a full size reissue of the MS-20, called the MS-20 FS, which retains features from the 2013 kit release such as the Rev1 and Rev2 filter types as well as MIDI compatibility through both 5-pin DIN and USB connections.[7]
Software emulations
[edit]There is a software emulator of the MS-20 included in the KORG legacy Collection. As well as a standalone emulator, the Legacy Collection provides the MS-20 as a virtual instrument (VST). The external signal processor is implemented separately as a VST effect called MS-20EX. This same software emulated MS-20 was also part of the LAC-1 expansion for the Korg OASYS and is one of the Korg Kronos sound engines.
KORG DS-10 is a music creation program for the Nintendo DS that emulates the Korg MS range of synthesizers.
KORG DSN-12 is an MS-20 emulator for the Nintendo 3DS.
KORG iMS-20 is an MS-20 emulator for the iPad.
References
[edit]- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2013-06-25. Retrieved 2017-10-27.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ "RA Reviews: Korg - MS-20 Mini (Tech)". Residentadvisor.net. Retrieved 2013-10-07.
- ^ "NAMM 2014: Korg MS20 Kit (Video)". www.soundonsound.com. Retrieved 2024-03-14.
- ^ Rogersonpublished, Ben (2015-01-23). "NAMM 2015: Korg MS-20M Kit synth, SQ-1 step sequencer hands-on and video". MusicRadar. Retrieved 2024-03-14.
- ^ "Korg MS20M & SQ1". www.soundonsound.com. Retrieved 2024-03-14.
- ^ "Out of nowhere, Behringer announces its MS-20 clone, the K-2". MusicRadar.com. 1 August 2019. Retrieved 22 April 2021.
- ^ "Korg re-re-release MS20". www.soundonsound.com. Retrieved 2024-03-14.
Further reading
[edit]- "Retro: Korg MS-20". Future Music. No. 43. Future Publishing. May 1996. p. 50. ISSN 0967-0378. OCLC 1032779031.
- "Korg MS20". Music Technology. June 1989. p. 80. ISSN 0957-6606. OCLC 24835173.
External links
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| Samplers | ||
| Vocoder | ||
| Organs | ||
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| Software | ||
Korg MS-20
View on Grokipediafrom Grokipedia
Development and Release
Development
The Korg MS-20 was conceived in the late 1970s as a compact semi-modular analog synthesizer embodying the "desktop wall" design philosophy, which envisioned a versatile, wall-like array of modules in a portable desktop format to appeal to hobbyists and musicians seeking hands-on experimentation without the bulk of full modular systems.[1] This approach prioritized expandability through patching while maintaining affordability and ease of use, drawing from Korg's earlier efforts in polyphonic and ensemble synthesis to democratize sound design.[3] Development occurred within Korg's analog division during 1977-1978, led by engineers Fumio Mieda and Hiroaki Nishijima, who focused on creating a monophonic instrument with dual oscillators for lead and bass sounds, building directly on the simpler single-oscillator MS-10 to enhance sonic depth at a target price of around $750.[4][5][2] Mieda and the team adapted circuitry from the 1977 PS-3100 polyphonic synthesizer, compressing high-end features like voltage-controlled oscillators, filters, amplifiers, and envelope generators into a smaller footprint to meet professional standards affordably.[3] The process unfolded rapidly, emphasizing precise specifications to ensure timeless versatility rather than overcomplication.[4] Key challenges included balancing modularity—via integrated patch cables for signal routing—with stringent cost controls to keep the instrument accessible, achieved through efficient component integration without sacrificing performance.[1][2] Initial prototypes tested this concept, including an ultra-large "blackboard-sized" educational prototype proposed for institutional use, which informed the final portable design.[5] Extensive testing refined the MS-20's aggressive yet adaptable sound profile, ensuring it delivered raw, portable synthesis suitable for creative exploration.[3] The patching system, in particular, allowed brief experimentation with flexible routings during prototyping to verify expandability.[2]Release and Production
The Korg MS-20 was officially released in 1978 as a semi-modular analog synthesizer aimed at broadening access to synthesis technology.[1] It debuted at a launch price of $750 for the full keyboard version, making it an affordable option compared to high-end competitors like Moog and ARP models at the time.[6] The instrument quickly gained attention at trade shows in 1978, where its compact design and aggressive sound palette impressed attendees and foreshadowed its cult appeal.[2] Production of the original MS-20 ran from 1978 to 1983, during which over 20,000 units were sold worldwide, establishing it as a commercial success for Korg in the analog era.[7] Early reviews in music publications highlighted its exceptional value for money and the raw, versatile tone produced by its dual filters, often describing it as a "desktop wall of sound" that democratized experimental synthesis.[8] Korg's distribution strategy emphasized accessibility for home enthusiasts and educational settings, with bundles typically including essential patch cords to encourage immediate experimentation.[8] By the early 1980s, production ceased as the synthesizer market shifted toward digital instruments like FM synthesis models, rendering analog designs like the MS-20 less competitive in cost and features.[3] Despite this, the MS-20's initial run solidified Korg's reputation for innovative, user-friendly gear that appealed to both beginners and professionals.[1]Design and Sound
Signal Path and Modules
The Korg MS-20's core signal path follows a classic subtractive synthesis architecture, beginning with dual voltage-controlled oscillators (VCOs) that generate the primary audio signals. VCO1 offers triangle, sawtooth, square (pulse-width modulable), and noise waveforms, with an octave range spanning 32' to 4', while VCO2 provides sawtooth, square, narrow pulse, and ring modulation modes, covering 16' to 2'. Ring modulation on VCO2 combines the frequencies of both oscillators to produce sum and difference tones, and VCO2 can be hard-synced to VCO1 for timbral complexity. These oscillator outputs are mixed in the VCO mixer section, which also accepts external audio inputs, before proceeding to the filter stage.[9][7] The filtering module consists of two voltage-controlled filters (VCFs) arranged in series: a high-pass filter (HPF) with a 6 dB/octave slope followed by a low-pass filter (LPF) with a 12 dB/octave slope, each with adjustable resonance. The HPF attenuates low frequencies starting from 50 Hz to 2.5 kHz, while the LPF cuts highs from 100 Hz to 5 kHz, allowing for versatile tonal shaping. Both filters support self-oscillation when resonance is increased, generating a sine-like tone at the cutoff frequency independent of input signal, which can be used as an additional oscillator source. The filtered signal then passes to a voltage-controlled amplifier (VCA) for amplitude control before reaching the main audio output and headphone jack.[9][10] Modulation sources include two envelope generators (EGs) and a sample-and-hold circuit. EG1 and EG2 are ADSR-style generators with variations: EG1 features delay, attack, and release stages for modulating filters or other parameters, while EG2 includes hold, attack, decay, sustain, and release for primary VCA control, enabling dynamic envelope shaping. The sample-and-hold circuit captures and holds an input voltage (often noise for random steps) upon receiving a clock pulse from the modulation generator (LFO) or external trigger, providing stepped modulation for pitch, filter cutoff, or other destinations. These elements integrate into the signal flow via dedicated routing or the patch panel.[9][2] The semi-modular design exposes key points along the signal path for patching, such as VCO outputs, filter inputs/outputs, EG outputs, and VCA initial gain, allowing users to reroute audio or control voltages externally while maintaining the default flow from VCO mixer through HPF, LPF, VCA, to outputs. The MS-20 employs a Hertz-per-volt (Hz/V) control voltage standard for pitch tracking, compatible with Korg's ecosystem, and operates on an internal AC power supply (100-120V, 12W consumption) that generates ±12V rails for analog circuitry. Audio outputs deliver 2V peak-to-peak line level signals.[9][10]Controls and Patching
The Korg MS-20 synthesizer presents a compact, semi-modular interface characterized by an L-shaped black metal chassis, with the 37-note keyboard version featuring a three-octave span from C to C and velocity-insensitive keys for monophonic play.[11] The non-keyboard model, the MS-50 expansion module released in 1979, dispenses with the integrated keyboard to prioritize a rack-mountable, fully patchable design reliant on external CV/gate inputs for triggering and control.[1] The front panel rises steeply behind the keyboard (or module edge), housing a dense array of knobs, switches, and a patch panel for hands-on sound shaping, while the rear includes standard audio I/O jacks but no built-in speaker in the original configuration.[11] Central to user interaction are the dedicated control sections for pitch, modulation, filtering, and dynamics. The two voltage-controlled oscillators (VCO1 and VCO2) offer pitch knobs for coarse and fine tuning, waveform selectors (sawtooth, square, triangle, and noise for VCO1; sawtooth, square, and ring-modulated options for VCO2), and modulation depth controls influenced by envelope generator 1 (EG1) or the low-frequency oscillator (LFO).[11] The dual filters—a high-pass and low-pass each with cutoff frequency and resonance knobs—allow independent adjustment of tonal brightness and emphasis, with additional modulation inputs for dynamic sweeps.[2] Envelope controls include EG1's delay-attack-release (DAR) parameters for pitch and modulation contouring, and EG2's attack-decay-sustain-release (ADSR) with a hold time up to 20 seconds for amplitude and filter shaping, both with adjustable attack times up to 10 seconds for EG1.[11] The LFO section provides rate and delay knobs, along with waveform selection (triangle, sawtooth, or square) and depth controls for vibrato or tremolo effects.[11] The patch panel, located on the lower front panel, consists of 13 input and output jacks enabling flexible routing of control voltages (CV), audio signals, triggers, and modulation paths to override or extend the hardwired signal flow.[2] These jacks include outputs from VCOs, EG1, LFO, and sample-and-hold (S&H); inputs for external CV to VCO pitch, filter cutoff, and VCA; trigger/gate points for EG reset; and audio ins/outs for signal insertion, all using 3.5mm mono plugs compatible with Hz/V standards for integration with modular systems.[11] Patching allows users to insert modulation sources, such as connecting the LFO output to a dedicated modulation VCA input before routing to VCO frequency for controlled vibrato, or linking EG1 output to filter cutoff for evolving timbres.[11] The External Signal Processor (ESP), a dedicated subsection with its own preamp, bandpass filter, and envelope follower, facilitates integration of non-synth inputs like microphones or guitars by converting audio amplitude to CV and gate signals.[1] Users connect an external source to the ESP input jack, adjust the sensitivity and filter controls for signal conditioning, then patch the ESP's CV out to VCO pitch inputs and trigger out to EG gates, enabling the MS-20 to track and synthesize from external audio with added filtering or envelope-followed modulation.[2] Practical patching examples highlight the system's versatility without altering core sound generation. For frequency modulation (FM) synthesis, connect VCO2's square wave output to VCO1's external frequency input jack, then modulate VCO2 pitch via LFO or EG1 to produce metallic, bell-like timbres from oscillator cross-modulation.[11] External clock synchronization is achieved by patching an incoming pulse signal to the S&H clock input or LFO total jack, allowing rhythmic resetting of modulation patterns or random voltage generation in time with sequencers or drum machines.[2] These routings expand the MS-20's modular-like capabilities while maintaining its fixed audio path through the dual filters and VCA.[1]Filter and Sound Characteristics
The Korg MS-20's filter section features a dual configuration with a high-pass and low-pass filter, operating at 12 dB/octave for the low-pass and 6 dB/octave for the high-pass.[12] The early Revision 1 (Rev1) filter, produced from 1978 to 1979, employs a Sallen-Key topology using the Korg-35 integrated circuit, where transistors function as current-controlled resistors in reverse saturation mode.[12] This design delivers high resonance capable of instability and self-oscillation, producing aggressive, "screaming" lead tones characterized by asymmetrical distortion from forward-path diodes that progressively affect higher frequencies.[12][10] In contrast, the Revision 2 (Rev2) filter, introduced around 1979 and used until production ended in 1983, shifts to an OTA-based design with two cascaded, buffered first-order sections using LM13600 operational transconductance amplifiers.[12] This results in a cleaner, more stable response with symmetrical resonance and reduced sensitivity to gain variations, yielding less characterful but more controlled tones compared to the raw edge of Rev1.[12][10] The Rev2's feedback diodes limit distortion primarily to the cutoff frequency, enhancing usability for subtler applications while retaining some grit.[12] The MS-20's overall sound palette emphasizes gritty, distorted basses and leads, with the filters' resonance providing midrange bite that accentuates harmonic aggression.[11] Its frequency response spans a broad range, from subsonic lows via the VCOs to ultrasonic highs approaching 17 kHz in the low-pass mode, enabling versatile tonal shaping.[13] The built-in noise generator contributes metallic percussion sounds when filtered and enveloped, while extensive modulation options via patching produce sci-fi effects like evolving sweeps and metallic textures.[11] Historical demos of the MS-20 highlight its raw, unpolished analog warmth, contrasting with the precise clarity of modern digital synths; for instance, early recordings showcase the Rev1 filter's howling leads in sequencer-driven patterns, evoking a gritty urgency absent in polished emulations.[11] This organic instability and diode-induced overdrive define the instrument's enduring appeal for aggressive, character-rich synthesis.[10]Variants
Original Variants
The Korg MS-20 was initially released in a keyboard version featuring a 37-note slim-key octave-spanning keyboard, designed for both performance and integration into modular setups. A desktop variant, lacking the built-in keyboard, was also available to provide a more compact module-style option for rackmounting or desktop use, allowing users to connect external controllers. Both formats supported optional integration with the SQ-10 analog sequencer, a 12-step (expandable to 24) three-channel device released concurrently in 1978, which enabled voltage-controlled sequencing of pitch, timbre, and timing via patch cables.[6][1][14] Early production models from 1978 to 1979, known as Rev1, employed the proprietary Korg 35 filter chip in their dual high-pass/low-pass filter section, contributing to a characteristically aggressive and raw sound with pronounced resonance self-oscillation, but also a higher noise floor and occasional tuning instability due to component drift.[15][16] These units featured an orange-brown front panel and were prized for their unrefined, distorted tonal edge that defined the MS-20's punk-era appeal.[17] From late 1979 through the end of production in 1983, Korg introduced the Rev2 variant with an updated filter circuit using the more stable LM13600 dual operational amplifier chip, which reduced noise, improved tuning reliability, and delivered a smoother, more controlled resonance response suitable for bass and lead tones.[15][16] Cosmetic updates included a shift to a gray front panel for a more subdued aesthetic, alongside minor internal refinements for better overall durability.[17] Certain production runs were bundled as accessory variants, including packages with the MS-02 dual-channel mixer for expanded signal routing between multiple MS-series units.[18][1] Overall, Korg produced approximately 20,000 MS-20 units across all original variants from 1978 to 1983, with Rev1 models representing a smaller early batch that has become rarer on the vintage market. As of 2025, well-maintained Rev1 examples command premium collector values often exceeding $2,000 due to their scarcity and distinctive sonic character, while Rev2 units typically range from $1,000 to $1,800.[2]Reissues and Modern Versions
In 2013, Korg released the MS-20 Mini, a compact reissue scaled to 86% of the original's dimensions at 493 × 257 × 208 mm, while faithfully recreating the analog circuitry and patching capabilities of the 1978 model.[21][22] It introduced MIDI IN and USB-MIDI connectivity for digital integration, along with CV/Gate inputs and outputs, and includes an external signal processor section for handling non-synth audio sources.[23] Powered by a 9V DC adapter, it was priced at around $600 upon launch, making it accessible for contemporary musicians seeking the MS-20's aggressive sound in a portable form.[24][25] The MS-20 FS, introduced in 2020 as a full-sized reissue measuring 573 × 316 × 248 mm, restored the original's proportions and expanded options with four color variants: green, blue, white, and black in a powder-coated finish.[26] It features switchable filters emulating the early Revision 1 (high-pass and low-pass) and late Revision 2 (low-pass only) designs, plus USB and traditional MIDI I/O for enhanced connectivity. Launched at $1,400, the FS incorporates modern electronic components for improved reliability and reduced noise compared to vintage units.[27] In 2014, Korg offered the MS-20 Kit, a DIY assembly version with the same full-size specifications and filter options as the FS, but allowing users to customize panel colors and build the instrument themselves using provided parts and instructions; it could be assembled as a keyboard unit or a desktop module (MS-20M). Priced at $1,500, it appeals to enthusiasts desiring a hands-on experience while delivering the authentic MS-20 architecture.[10][28] Across these reissues, enhancements like updated power regulation and component tolerances ensure greater tuning stability and longevity. Additionally, compatibility with the SQ-64 step sequencer provides CV/Gate and MIDI synchronization for expanded sequencing capabilities. As of 2025, production of the MS-20 reissues continues through limited runs, with the FS serving as the flagship model available in assembled form.[26]Digital Emulations
Official Software
Korg's official software emulations of the MS-20 began with the Legacy Collection MS-20, released in 2004 as a VST and AU plugin that provided a digital recreation of the original 1978 hardware synthesizer. This initial version introduced 32-voice polyphony to the monophonic design, enabling unison, detune, and spread modes for richer sound layering, while faithfully replicating the instrument's circuitry based on its original schematics.[29][30] In 2020, as part of the Korg Collection, Korg updated the emulation to MS-20 V2, enhancing the graphical user interface for better usability and incorporating additional effects such as delay and reverb to expand creative possibilities beyond the hardware's capabilities. The software maintained the core semi-modular patching system, supporting external audio input processing similar to the original's external signal processor.[29] The most recent iteration, the Korg Collection MS-20, released in 2020 and included in Korg Collection 6 as of October 2025, features high-resolution graphics optimized for Retina and 4K displays, with a scalable interface adjustable across six levels for various screen sizes. It includes native support for Apple M1 (and later Silicon) chips, ensuring efficient performance on modern hardware, and integrates seamlessly with Korg's Gadget ecosystem for mobile production workflows. Priced at $99 for standalone purchase, it offers two multi-effects units with 21 types—including compression, delay, and reverb—each providing 127 editable programs to complement the MS-20's aggressive analog tone. The emulation comes with 250 presets, comprising 200 newly designed patches alongside recreations of classic MS-20 sounds, organized for easy browsing.[31][32][29] At the heart of these emulations is Korg's Component Modeling Technology (CMT), a component-level simulation approach that accurately reproduces the analog behaviors of the MS-20, including voltage-controlled oscillator (VCO) drift for subtle pitch instabilities and the non-linear characteristics of its high-pass and low-pass filters. This modeling captures the instrument's self-oscillating filters and ring modulation between oscillators, preserving the hardware's distinctive, viscous sound profile.[29][33] The software is compatible with macOS and Windows operating systems, functioning as standalone applications or plugins in formats like AU, VST3, and AAX within major digital audio workstations. An iOS version, the iMS-20 app released in 2010 and derived from the Legacy Collection, extends compatibility to iPad devices, allowing portable use with touch-based patching, a 16-step sequencer, drum machine, mixer, and preset management stored in user-accessible folders.[29][31][34][35]Third-Party Emulations
Arturia introduced the KORG MS-20 V in 2022 as part of its V Collection 9, delivering a meticulously modeled virtual analog synthesizer that replicates the original MS-20's semi-modular architecture, including dual 12 dB/octave filters, two voltage-controlled oscillators, and the signature patch panel for signal routing. This emulation expands on the hardware with up to 32-voice polyphony, 16-voice unison capabilities, an enhanced modulation matrix for deeper sound design, and integration into the Analog Lab preset browser for streamlined workflow. The plugin also incorporates a modeled SQ-10 sequencer and supports external audio processing, preserving the MS-20's aggressive, resonant tone while adding modern MIDI and MPE compatibility.[36][37] Cherry Audio released the PS-20 in 2021 as a polyphonic enhancement of the MS-20 concept, supporting up to 16 voices with random panning and featuring precise circuit-modeled highpass and lowpass filters that capture the original's distorted, screaming resonance at high settings. The instrument includes two oscillators with noise generator and cross-modulation, an envelope follower for external signal processing, and an integrated 8-step/3-track sequencer, alongside over 320 presets optimized for bass, leads, and effects. Its semi-modular patch bay allows for flexible routing, making it suitable for both vintage recreations and expanded creative applications.[38] For modular enthusiasts, Cherry Audio's MS Vintage Bundle, available within the Voltage Modular environment since 2020, provides a collection of individual modules emulating key MS-20 components such as the VCOs, multi-mode filters, envelope generators, and ESP (envelope sample and hold) processor. This pack enables users to build custom virtual synthesizers inspired by the MS-20's signal path, with Eurorack-compatible voltage levels and audio-rate modulation for integration into larger modular setups. The bundle emphasizes the original's raw, interactive patching while benefiting from Voltage Modular's low-latency performance and preset sharing.[39] Other third-party efforts include specialized tools like Arturia's standalone Filter MS-20 plugin, released in 2022, which isolates the MS-20's dual filters for use as an effects processor with added LFOs, envelopes, and multiband modes to enhance any audio source with the synth's characteristic bite. Reviews of these emulations generally commend their fidelity to the MS-20's filter behavior but note occasional variations in resonance aggression, where software models may exhibit slightly smoother distortion compared to the hardware's unpredictable overdrive in extreme configurations.[40][41]Cultural Impact
Notable Users and Recordings
The Korg MS-20 gained early adoption among new wave and electronic artists in the late 1970s and early 1980s for its raw, versatile analog tones. Orchestral Manoeuvres in the Dark (OMD) utilized it for the bass line on "Bunker Soldiers" from their 1980 self-titled debut album, employing it extensively throughout the record to craft moody, sequencer-driven atmospheres.[42] Similarly, A Flock of Seagulls incorporated the MS-20 for the bass line in their 1982 hit "I Ran (So Far Away)," as well as for experimental effects on other tracks from their debut album.[42] In the EBM genre, Deutsch Amerikanische Freundschaft (D.A.F.) featured the MS-20 prominently across their 1981 album Alles ist gut, including the title track, where drummer Robert Görl praised its affordability and accessibility as a "synth for the people" alongside an ARP Odyssey.[42] During the 1990s, the MS-20's aggressive filters and patchability appealed to trip-hop and IDM producers. Portishead's guitarist Adrian Utley processed guitar sounds through the MS-20 on their seminal 1994 album Dummy, contributing to its signature lo-fi, atmospheric textures.[43] Aphex Twin (Richard D. James) relied on the MS-20, alongside a Roland SH-101 and Yamaha DX7, for synth patches on his 1992 album Selected Ambient Works 85-92, where its distorted leads and basses shaped the record's ambient techno soundscapes.[44] French electro acts embraced it as well: Daft Punk crafted the main riff for "Da Funk" on their 1997 debut Homework using the MS-20, later sampling the sequence for live performances, while Mr. Oizo deployed it for the iconic lead in his 1999 track "Flat Beat." Korg engineer Fumio Mieda, the MS-20's designer, lauded the latter's use, noting, "The sound is simple but amazing... it’s all about how you use an instrument."[42][4] Air also integrated it extensively on their 1998 album Moon Safari, evident in the swirling textures of "La Femme d'Argent" from the four-minute mark onward.[42] In the 2000s and beyond, the MS-20 influenced electronic and indie producers, often revived through reissues. The Prodigy routed most synth lines on "Girls" from their 2004 album Always Outnumbered, Never Outgunned through the MS-20 with distortion and fuzz, as confirmed by engineer Damian Taylor.[45] The Chemical Brothers employed its squelchy lines, enhanced with effects, on "The Big Jump" from 2005's Push the Button, a sound they jammed live at venues like Brixton Academy.[45] Jon Hopkins used the MS-20 for the main synth riff on his 2013 track "Open Eye Signal" from Immunity, spending four months refining the sound to achieve an "effortless" quality.[46] Atoms for Peace (featuring Thom Yorke) incorporated it on multiple tracks from their 2013 album AMOK, including live performances of "Default."[42] More recently, Labrinth made the MS-20 a staple in the score for HBO's Euphoria (2019–present), stating in an interview, "The MS-20 has always been a staple. When I did the Euphoria score, the MS-20 was literally all over that show."[47]Influence and Legacy
The Korg MS-20's semi-modular design, introduced in 1978, pioneered an accessible approach to patchable synthesis that influenced subsequent modular systems, including the Eurorack format popular in the 2000s and 2010s. By integrating fixed signal paths with a patch bay for reconfiguration, it allowed users to experiment with sound routing without the high costs of fully modular setups like the ARP 2600, inspiring Eurorack modules that emulate its components, such as filter clones from Befaco and Malekko Heavy Industry. This ethos of flexible, hands-on modulation shared conceptual parallels with boutique Eurorack designers like Make Noise, emphasizing raw, experimental sound generation over preset reliance.[2][7] The MS-20 played a key role in democratizing electronic music production during the late 1970s and early 1980s by offering an entry-level analog synthesizer at a fraction of competitors' prices. Priced at $750 upon release—compared to $1,295 for the ARP Odyssey or $1,595 for the Minimoog Model D—it was engineered with cost controls to appeal to young hobbyists and emerging producers, enabling DIY experimentation in home studios and fostering broader adoption of synthesis beyond professional circles. Over 300,000 units and related products have been sold globally, underscoring its impact on making analog sound design attainable for non-elite users.[1][2][3] The instrument experienced a significant revival during the 2010s analog renaissance, driven by renewed interest in vintage hardware amid digital fatigue among producers. Korg's 2013 reissue of the MS-20 Mini, scaled to 86% of the original size while retaining authentic circuitry, capitalized on this wave, boosting demand for analog gear restoration and repairs as enthusiasts sought the MS-20's distinctive, gritty tones. This resurgence highlighted the synth's enduring appeal, with its self-oscillating filters and modulation options aligning perfectly with the era's emphasis on tactile, imperfect analog workflows.[48][2] The MS-20's legacy extends to educational contexts, where its intuitive patch bay and visual signal flow make it a staple in synthesis workshops for teaching subtractive synthesis principles. Institutions and academies, such as the School of Synthesis, incorporate it alongside modern tools to demonstrate core concepts like filtering and envelope shaping, leveraging its role as an original teaching instrument conceived by Korg to build foundational skills. In popular culture, its aggressive sound has influenced film sound design, though the synth's broader cultural footprint lies in its symbolization of analog experimentation.[3][49] Original MS-20 units have become highly collectible, reflecting the analog renaissance's premium on vintage gear, with well-preserved examples fetching over $2,000 as of November 2025 on secondary markets. This appreciation stems from the synth's scarcity—production ended in 1983—and its iconic status, driving a restoration economy where technicians service units for continued use in professional and hobbyist setups.[50][51][2]References
- https://greatsynthesizers.com/en/[review](/page/Review)/korg-ms-20-the-semi-modular-revolution/
- https://reverb.com/item/12612758-korg-ms-20-original-rev-2