AnalogFX Larynx: the SER-2020 keyboard formant analog Synthesizer with extras – first look

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Superbooth 2026: AnalogFX Larynx is a new keyboard version of the SER-2020 formant analog Synthesizer with neat extras like a stereo delay.

Update: first look video added

The Dutch company AnalogFX has been working on analog formant synthesis for some time now. The company’s best-known product that utilizes this synthesis is the SER-2020 semi-modular Synthesizer. There is also the VXC-2220 module that offers a 10-band vocoder.

For Superbooth 2026, AnalogFX is expanding its small portfolio with the Larynx, a keyboard version of the SER-2020 formant analog Synthesizer. 

AnalogFX Larynx

AnalogFX Larynx

The Larynx brings the DNA of the AnalogFX SER-2020 to a keyboard format. While the keyboard version offers many of the same features, it also boasts some unique points.

Like the desktop, the Larynx is based on the SER-2020 and continues the legacy of the unique Synton Syrinx.

This was an analog Synthesizer based on Curtis chips, made in the Netherlands and developed by Felix Visser, who passed away last year. The SER-2020, or the Larynx, is not a Synton clone but rather an analog reimagining of this original Synthesizer. 

One immediately noticeable difference compared to the SER-2020 is the keybed. It comes with a 37-key keybed with aftertouch support. No classic pitch or mod wheels, but instead, you get the Touch’n’Bend performance control in orange on the panel.

The latter enables real-time modulation across the entire signal path. 

AnalogFX Larynx

Analog Formant Engine

The Larynx also adopts the semi-modularity of its desktop counterpart and offers a row of patch points for various functions. Unlike the desktop, the analog core now has full analog monophonic and duophonic support. with duophonic support.

Two CEM3340-based multi-wave VCOs with a sub-oscillator and noise form the foundation of the engine. With dedicated controls, you can switch waveforms and archive more complex sounds, using sync, FM, and pulse-width modulation (PWM).

In the mixer section, you can mix in a sub-oscillator and the noise generator. Plus, you can mix with a dedicated pot ring modulation. 

The key feature of the Larynx is its filter section, which consists of three CEM3350-based VCFs: a 24dB lowpass filter and two independent resonant bandpass filters. Indeed, an unusual setup for an analog synth. 

This special filter exploration tour starts right in the mixer section, with a routing matrix that lets you set the VCF routing. In the filter section, you have full control over all three filters with frequency and resonance controls for precise adjustment.

By combining all three filters, you can create all kinds of lovely formant filtering sounds that are impossible with classic subtractive analog synths.

It includes the new formant mode with 16 pre-programmed human voice formant settings for shaping sounds that emulate speech-like tones or create distinctive, animated bass textures.

AnalogFX Larynx

The main VCF, as well as the bandpass filters, are fully modulatable via the filter modulation matrix. Two dedicated keyboard tracking controls are also available. 

On the modulation side, you have two ADSR envelopes, two LFOs, a built-in sample & hold generator, as well as routable aftertouch and MPE support.

The Larynx Extras

The Larynx is not just a keyboard version of the SER-2020; it also offers extras that AnalogFX has incorporated.

Alongside the patch bay with CV inputs for most of the functions, it features a stereo delay with control over delay time, feedback, mix, and modulation from LFO1 and LFO2. This allows for both classic and modulated delay sounds, like a chorus.

The delay also has dedicated CV inputs. An auto-glide function is also onboard. Also new in the Larynx is the bottom section on the right side. Here is the home of a new built-in arpeggiator and sequencer. AnalogFX does not reveal how many steps or what functions this device has.

On the connection side, it has a line output, headphone socket, expression/hold pedal, and MIDI and USB MIDI support. There is currently no demo of the AnalogFX Larynx. However, since it is based on the SER-2020, there shouldn’t be much difference.

AnalogFX Larynx First Impression

In times when we have so many semi-modular analog synths with often very similar designs, it’s great to have specialized synths like this one. A keyboard version is a very welcome surprise for Superbooth 2026.

It looks great to me. Nicely compact but packed with control elements. Now, even keyboard-synth fans can make the Formant dance.

AnalogFX Larynx is now available for pre-order at 1124,09€ instead of 1249€. It ships in September 2026, and the first batch is limited to 50 units. 

More information here: AnalogFX 

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5 Comments

  1. I’ve been eyeing the original desktop version, based on Demos it sounds amazing and price is not exorbitant. now with keys and a modulateable delay it jumps up a couple of spots in my list!

  2. Fantastic – love it! Would much rather support this effort, than the vintage reseller’s market right now. Interesting instrument, and looking well made…

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