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EMS Synthi AKS

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Page last updated Feb 20, 2026

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Description

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Step into the world of classic analog synthesis with the EMS Synthi AKS, a revered instrument that has captured the imagination of musicians and sound designers alike since its inception in the 1970s. This iconic synthesizer is renowned for its unique pin matrix modulation system, which allows for an unparalleled level of creativity and experimentation, making it a favorite in studios around the globe.

The Synthi AKS is a portable powerhouse, combining the capabilities of the EMS Synthi A with a built-in keyboard and sequencer, housed in a briefcase-like design. Its distinctive sound is characterized by rich, warm tones and the ability to produce a wide array of sonic textures, from lush pads to otherworldly effects. Whether you're a seasoned professional or an experimental enthusiast, the Synthi AKS offers a tactile and intuitive interface that encourages hands-on exploration.

A notable feature of the Synthi AKS is its three oscillators, which provide a robust foundation for sound creation. The synthesizer's comprehensive control panel includes a variety of knobs and switches, enabling intricate manipulation of sound parameters. The onboard sequencer, another key element, allows for complex pattern creation, elevating your compositions to new heights.

Key Features:

Iconic pin matrix modulation system for dynamic sound shaping
Integrated keyboard and sequencer for melodic and rhythmic programming
Three oscillators for a broad range of sound generation
Compact, portable design in a briefcase-style case
Intuitive interface with extensive control options for real-time sound manipulation

Videos

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JannisAnastasakis

Improvising "On The Run" (Pink Floyd) - EMS Synthi AKS

JannisAnastasakis

Alka - Demoing The EMS Synthi AKS Mk 1 (Pt 1/2)

alka

EMS SYNTHI AKS solo. Remember

Claude Menu

The Incredible EMS Synthi AKS from 1971 - 24Bit Record

Chris Mick Studentsmusic

EMS Synthi AKS : VCS3 - Easy Instructional Video

Andy Whitmore

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about EMS Synthi AKS.

Features and functionality

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The Synthi AKS can mix external audio with synth audio, allowing simultaneous control of oscillators with audio inputs and the built-in keyboard.
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The Synthi AKS uses a patch matrix where the keyboard pitch control shares points with external audio inputs, enabling pitch tracking and audio following.
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Setup and maintenance

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The envelope shaper must be turned to manual with pins at specific points (e.g., 3D, 12A) for proper functioning.
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Different colored pegs in the patch matrix have varied resistances, with modern red, white, and yellow pins at 2k7 1% resistor, and green pins at 68k.
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Software and compatibility

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The Synthi operates on a unique voltage standard: Oscillators 1 and 2 at 0.32 V/Oct, and Oscillator 3 at 0.20 V/Oct.
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Using a Keystep Pro set to 1.2V/Oct can achieve successful pitch tracking with the Synthi.
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Use cases and applications

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It has been effectively used with techno and gabber-style kick and cymbal patterns, with toms being particularly effective for triggering oscillators.
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Artist usage

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Patrick Moraz

Keyboardist

Yes

Verified via Photo

The tour program in the lower part of this page states that Moraz used an EMS Synthi AKS.

Nick Hook

Music Producer

Cubic Zirconia

Verified via Photo

Holy fucking shit i finally saw a synthi

Surachai

Music Producer

Verified via Photo

can be seen in this post from August 30, 2019

Chris Cross

Bassist, Keyboardist

Ultravox

Verified via Ultravox

"During the time in which Ultravox was led by John Foxx, he used a Guild B-301, a white Gibson EB-3 and fretless Fender Precision basses, and an EMS Synthi AKS and later Mini Moog synthesisers with an Ampeg amplifier with 8×10" speaker cabinets.

While the recording of Vienna album, he used a Yamaha bass, a Fender Precision bass, a Mini Moog synthesiser and Yamaha synthesiser

Later he also used Status and Steinberger basses.

Cross's distinctive grey bass is an Ibanez RoadStar from the early 1980s; this bass has been used on many of Ultravox's albums and was Cross' primary instrument during the first stage of the 'Return to Eden' Tour in 2009.

On the 'Return to Eden' tour in 2010 and the 'Brilliant' tour in 2012, he also used a Rickenbacker 4003 Fireglo finish bass and a standby black Fender Telecaster Bass."

Mike Ratledge

Keyboardist, Composer

Soft Machine

Verified via Photo

Mike Ratledge is known to have used the EMS Synthi AKS in numerous recordings, including some as early as 1970. This is evidenced by a photo showing the Synthi AKS positioned on the left, between his Lowrey Organ and Fender Rhodes.

The BBC Radiophonic Workshop

Composer, Music Producer

Verified via Whitefiles

These are the list of synthesizers that the Radiophonic Workshop used in 1985

Sarah Davachi

Keyboardist, Music Producer

Verified via Fact Magazine

In a 2018 interview with Fact Magazine, Sarah Davachi confirmed her use of the EMS Synthi AKS synthesizer, stating: "the last couple of years I’ve shifted from modular stuff. I like integrated instruments, like mid-to-late ’70s analog instruments. [...] the main instrument that I use in the studio is the EMS Synthi AKS." This information was provided by John Twells in the article "Sarah Davachi on the beauty of instruments, from analog synthesizers to pipe organs."

Don Preston

Keyboardist

The Plastic Ono Band

Verified via Photo

Don Preston can be seen in this photo using an EMS Synthi AKS in his studio.

Donato Dozzy

Music Producer, DJ

Verified via XLR8R

From the XLR8R Studio Essentials article:

Donato has a different collection of synthesizers, including some Roland classics and an EMS Synthi AKS.

Pete Namlook

Music Producer

Pete Namlook & Richie Hawtin

Verified via Photo

Pete can be seen with the Synthi AKS in this photo

Assembler

Music Producer

AUDIO SPORTS

Verified via YouTube

can be seen at 4:21 in this video

David Cunningham

Keyboardist, Music Producer

The Flying Lizards

Verified via Muzines

His only synthesisers are a SCI Prophet 5 and, more interestingly, an EMS Synthi AKS. "I got the Prophet because I'd mucked about on a mates and it was the only one I knew how to work." The AKS he got 7 years ago but minus its keyboard. He finds its external input useful for treating sounds. "Its got a built in VC springline reverb and ring modulator. It's really nasty but good for that element of roughness."