Synthesizer Virtual Instrument

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  • Regular price $149.00 67% off
  • $49.00
    Digital Product - Delivered via Email.
    More Info
AAX Native - Compatible with Pro Tools 11 and above
AudioUnits Format VST2 Format
Free iLok account required, USB dongle optional
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Strings, Human Voices, 10-band Musical Vocoder and more

The XILS V+ combines a Vintage 10 band Vocoder, Supreme Top Octave Divider based Strings and Human Voices, or any sophisticated layering of these three elements.

After more than one year of intense modeling deep in the basement of the Xils Laboratories, we offer you this complete recreation of a legend. Its unique vintage vibe and beauty that can only be brought back to life by precisely emulating different ancient and forgotten techniques.

T.O.D: The Top Octave Divider Oscillator provides a unique sound that no samples or other simple synthesis techniques can reproduce. Emulating the T.O.D, without any aliasing on the whole frequency range, with its pitch and waveform modulation, was a real challenge, worthy of XILS-lab. We are very proud of this effort and offer it to you for your inspiration and enjoyment.

XILS-lab touch: The XILS V+ would not be a real XILS-lab instrument if we did not add a lot of functions and possibilities that were not present in the original machine, some giving access to its internal circuitry and parameters. And some being totally new.

"T.O.D and Beyond", following the Analog and Beyond tradition XILS-lab initiated a long time ago.


  • One finely tweak and emulated Top Octave Divider aliasing free oscillator, providing up to 49 voices of polyphony.
  • Access to a lot of parameters that its hardware model kept secret under the roof.
  • One strings section.
  • One human voices section.
  • One 10 bands vocoder.
  • A virtual keyboard ( from which notes can be saved in your presets).
  • An Advanced Stereo Space effect.
  • A simple but nice sounding reverb.
  • An analog-like resonant Phaser.
  • Up to 6 free assignable modulation nodes, with up to 14 sources and 24 destinations.
  • A special Glide function.
  • A finely tweak analog-like pitch tracker.
  • All parameters are MIDI controllable.

Main Panel

The main panel shows the same parameters as the original hardware for a better understanding. Vocoder, Human voice, Strings are enabled by switches, following the original keyboard split "upper/lower".

This panel gives you all the possibilities you can find on the hardware.

A Brigade Bucket Delay based vibrato is providing for the vocoder and the human voice and the level of each section can be finely adjusted. The input of the vocoder "direct Mic" can also be mixed before the Ensemble (chorus).

An External synth input (using the side chain of the Plug-in) can be mixed with the internal sound generator to provide the vocoder carrier.

Advanced Settings

To offer a huger range of sonic possibilities, the XILS V+ provides four more panels for advanced settings: Mixer/ARP, Vocoder, Effects, and Modulation.


The mixer panel offers you the possibility to finely tune the internal sound generators.

From the relative level of the Male 8 and Male/Female 4 Human voices to the Ensemble dry/wet, you can also tweak the voices formants, the T.O.D waveform as well as the Strings filter shape.

Furthermore, to avoid the only problem some users reported from the hardware, you can select a Polyphonic attack either for the voices or for the strings.

The release, on the original machine, is reset each time a new note is played. This is a very musical feature for long release that doesn't blur previous chords. But if you prefer standard release behavior, you can select it on this panel ("Legacy" white rocket switch).

A build-in Arpeggio is also provided with a special feature to play "broken" arpeggios, avoiding some boring cycles.


The vocoder panel allows you to adjust the analog-like pitch tracker, the attack and release time of the analyze algorithm as well as some parameters of the filter banks.

You can also freeze the spectrum (the result can be saved in a preset or your project) and enable the special "water" effect (this is impossible to describe, so just try it).


The XILS V+ provides three built-in effects. The now well known Stereo Space, based on the XILS-lab True Stereo Dynamic Engine, a simple but efficient Reverb and an analog-like resonant Phaser.


Last but not least, the XILS V+ provides a wide range of modulations (over 14 sources and 24 destinations), a monophonic LFO and a polyphonic envelope dedicated to the modulation.

Top Octave Divider

The XILS V+ is based on a Top Octave Divider oscillator.

Under this strange name has hidden the heart of almost every electronic organ or strings machines built in the '80s.

A very clever concept to get 49 notes or more of polyphony without having to manage 49 or more stable oscillators, or the nightmare of having to tune 49 or more oscillators!

Only one square oscillator, oscillating at a very high frequency (the "Top Octave"), has to be designed and adjusted

This oscillator is "divided" to provide the 12 standard tempered frequencies over 4 (or more) octaves, these frequencies are then used to build the waveform of each of the 49 or more available notes.

As a matter of fact, all the notes are kept in phase, hence no drift between octaves (see the videos comparison between the hardware and the software)

Another benefit is that there is only a single tuning circuit for the whole keyboard and then when using the envelope glide, all the notes are modulated in the same manner.

This is the limitation that gives this very special, very recognizable effect used by a lot of electronic music artists.

Two other consequences:

The first one is that the attack is done after the summation of the notes. This means that after a note is played the others will get the level reached by the first one.

In other words, no polyphonic attacks for the real machine, but XILS-lab, thanks to the computer world, offers you both, monophonic AND polyphonic attacks. That's also called "paraphonic".

The second consequence is that all the filters are done after the summation of the notes.

The filters (strings, Human Voices, Vocoder) are then also monophonic.

49 voices of polyphony wouldn't be possible on today's' computers if the 49 specific filters would have to be polyphonic too (human voices are done with up to 14 filters, strings involve 7 filters, so up to 1029 filters would have to run at the same time).

So, as the real machine, the XILS V+ has monophonic filters.

System Requirements

The XILS V+ is available with the following formats (32 and 64 bits):

  • Mac OSX 10.8 and later
  • Windows 7, 8, and 10
  • VST, Audio Unit, AAX Native (32 & 64 bit)

System Requirements

  • MacOS 10.8 Mountain Lion and above
  • Windows 7 and above (32 and 64-bit)
  • Intel or AMD CPU
  • Free iLok account and iLok License Manager
  • iLok Machine and iLok USB licensing methods are supported

Plugin Formats

AAX Native, AU, and VST2

User Manual