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Elka-X Synthesizer

Synthesizer Plugin by Cherry Audio
Elka-X Synthesizer Elka-X Synthesizer Elka-X Synthesizer Elka-X Synthesizer
Elka-X Synthesizer by Cherry Audio is a Virtual Instrument Audio Plugin and a Software Application for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin, an AAX Plugin and a Standalone Application.
Windows 7 or above (including Windows 11), 64-bit required. Quad-core computer with 8GB of RAM recommended.
macOS 10.9 or above (including macOS 12), 64-bit required. Native Apple M1 processor support. Quad-core computer with 8GB of RAM recommended.
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The Cherry Audio Elka-X synthesizer is based upon the legendary Synthex, a rare Italian analog synthesizer designed by Mario Maggi and manufactured by ELKA in the early eighties. Elka-X replicates the extraordinary character of the original synth without compromising sound or functionality, thoughtfully expanding its feature set and delivering the authentic Synthex experience at a price anyone can afford.

{See video at top of page}

"If it had been built by a more prestigious manufacturer, and released at a more sensible price, the ELKA Synthex could possibly have rivaled the DX7 and kept analogue from being so swamped by digital." - Peter Forrest (1998), The A-Z of Analogue Synthesisers, Part One.

The Synthex included a combination of uncommon and forward-looking features that stood out from other contemporary synthesizers, including highly stable digitally-controlled analog oscillators and a flexible four-pole multimode filter. Unlike most other popular synths utilizing CEM3320 filter chips in a lowpass-only configuration, the Synthex filter featured a 24 dB/oct lowpass mode, 6 and 12 dB/oct bandpass modes, and a 12 dB/oct highpass mode. Along with a powerful onboard analog chorus effect, this gave the Synthex a distinct and powerful tonality. It was multitimbral, with the ability to play two separate patches simultaneously, in either split or layer mode. It even included an innovative four-track sequencer with real-time recording and transposition.

As ELKA's primary market was home organs, they never gained a strong foothold in the professional synthesizer market. Sadly, the whirlwind of excitement generated by the 1983 release of Yamaha's DX digital synthesizers relegated this superb instrument to the sidelines, never to achieve the success it deserved.

By the mid-80s, ELKA made the last Synthex for Stevie Wonder, who used it for the distinctive bass tone on his single "Skeletons" from the 1987 album Characters. Other notable users of the Synthex included Geoff Downes of the supergroup Asia, Keith Emerson, Nick Rhodes of Duran Duran, Peter Howell of the BBC Radiophonic Workshop, and Jean-Michel Jarre, who used it extensively on Rendezvous and for his famed "laser harp" sound.

X-pertly Extended and Enhanced.

Each aspect of Elka-X has been precisely modeled upon Cherry Audio's pristine vintage Synthex. Every effort was taken to emulate the prized tone of the original's DCOs, dynamic filter, and stunning chorus. We've preserved the innovative sound-sculpting and performance features such as layering and keyboard split, and hugely improved the original's clunky step sequencer.

Once again, Cherry Audio has kept the soul of a classic alive while updating its feature set for modern studio environments. We've increased the polyphony, included mono and unison modes, and added velocity response that was absent from the original design. We've expanded the functionality of the filter and the LFOs, greatly extending the modulation options. We not only simplified the operation of the four-track step sequencer but added a complete arpeggiator with independent assignments for both layers.

Unique panel controls make it painless to exchange settings between layers, sequencer tracks, and even different presets. In addition to the chorus effect found in the original, Elka-X adds studio-quality echo and reverb stereo effects, with independent settings for both layers. With additional touches such as chord memory, over 600 pro patches, and flexible MIDI mapping, Cherry Audio's Elka-X brings the authentic and expanded Synthex experience roaring into the 21st century.

Elka-X Features:

  • Two part multitimbral operation: two different patches simultaneously playable, in either a keyboard split or stacked layer mode, with user-specified split point and discrete controls for layer volume and panning.
  • 16 polyphonic voices which can be layered or split across the keyboard.
  • Panel Control for selecting layers, with a utility function for exchanging settings between the Lower and Upper sound layers, or even between presets.
  • Two DCO oscillators with triangle, sawtooth, square, and variable pulse waveforms and independent tuning.
  • Modes for polyphonic, single voice, and unison monophonic with unison detune.
  • PWM Cross Modulation and Ring Modulation for both oscillators.
  • White or Pink Noise Generator.
  • CEM3320-style multimode filter with 12 or 24 dB/oct lowpass, 6 or 12 dB/oct bandpass, or 12 dB/oct highpass.
  • Two tempo-syncable LFOs.
  • Two independent modulation sections: a fixed LFO 1 section, and performance-oriented LFO 2 section, intended for use with pitch and mod wheel controllers.
  • LFO 1 has triangle, sawtooth, ramp, bipolar square, unipolar square, and random waveforms; LFO 2 triangle waveform only.
  • ADSR Filter and Amplifier envelope generators with Velocity control.
  • Multi Trigger for the ADSR Filter and Amplifier envelope generators (in monophonic modes).
  • Chord Memory and Oscillator 2 sync.
  • Tempo Sync buttons for LFO 1 and 2, Sequencer rate, Arpeggio rate, and Echo rate for easy sync to DAW project tempo.
  • Step Sequencer consisting of four individual monophonic sequences, each with a user-definable length of up to 128 steps, assignable to either layer, and stored with the preset.
  • Step Sequencer utility operation for copying, swapping, and moving sequencer data between tracks, or from one presets to another.
  • Glide (pitch envelope) and Portamento (standard glide), independently enabled for each oscillator.
  • Arpeggiator with tempo sync, independently assignable to both layers.
  • Studio-quality chorus, echo delay, and reverb effects, including our acclaimed "Galactic" reverb algorithm.
  • Cherry Audio's popular Focus zoom-in feature, as well as standard UI zoom and resize with drag.
  • Over 600 presets created by a talented and diverse group of sound design veterans.
  • Complete MIDI control and DAW automation for all controls, with easy-to-use MIDI learn.
  • Preset and Global level MIDI mapping.
  • Highly optimized coding for optimal performance with ultra-low CPU load.
  • User-adjustable oversampling control.
  • Available in AU, VST, VST3, AAX, and standalone formats.

Latest User Reviews

Average user rating of 3.33 from 3 reviews

Elka-X Synthesizer
Reviewed By ImagineMovieScores
September 10th, 2023

Great synthesizer, great software and sounds great, but it need maybe a little bit more of body in the lows to sound thicker.

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Elka-X Synthesizer
Reviewed By MondoStrat
August 9th, 2023

I have seven Cherry Audio synths - Elka-X is the best sounding & easiest to program of the bunch. A very good collection of factory sounds are easily tweaked to fit your needs. The straight forward architecture and 2 level design make it easy to dial up your own patches. The only downside is the true to original GUI. I have to scroll around in 'FOCUS' mode to see what I'm doing when creating patches - seems a little clumsy this day in age. How about an alternate skin for non purists who want to see what they are doing?

Minus one star for the GUI -

Four Stars.

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Elka-X Synthesizer
Reviewed By Stoffel11
February 11th, 2023

Superb simulation of the original device, but:

The copy protection system wants to register the plugin and load some stuff online from time to time.

At homestudio that's ok, but on stage you mostly have no internet and therefore it's a very high risk to use this plugin there. I had several connections to the support, got some solutions but have still this annoying behavior. So only two and not five stars.

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