XILS 505 synth plugin interface by XILS Lab showing string, synth and bass sections

XILS 505: Paraphonic String, Synth and Bass Plugin by XILS Lab Free Download

XILS 505 is a paraphonic virtual instrument from XILS Lab that combines string machine, synthesizer and bass sections in one plugin. It is a software recreation of a vintage analog string machine, with built-in effects and a modulation matrix.

VST2AUAAXStandaloneWindowsmacOS64-bit
AVAILABLE ATPlugin Boutique
Free trial available from the developer
01Overview

XILS 505 brings together three sound sources in one instrument: a string section, a synthesizer section and a bass section. The developer, XILS Lab, based it on the vintage analog string machine model and extends it with a human choir oscillator and hidden parameters from the original hardware. The plugin includes a phaser, a reverb and a stereo space effect, along with a modulation matrix for shaping movement over time.

Best for

  • String pads
  • Vintage synth basses
  • Choir textures
  • Layered orchestral sounds
  • Analog-style leads
  • Retro chord progressions
Developer
XILS Lab
Category
Synths
Store
Plugin Boutique
02Key features

What you get

  • Top Octave Divider oscillator with up to 49 voices of polyphony
  • Separate string, synthesizer and bass sections in one plugin
  • Human choir oscillator as an alternative source for the synth section
  • Second Touch retrigger function for monophonic envelope play
  • Modulation matrix with 14 sources and 24 destinations
  • Quadruple BBD chorus/ensemble with per-section send levels
  • Built-in phaser, vintage reverb and true stereo space effects
  • Full MIDI CC control of parameters in your DAW
03In depth

Sound Sources and Oscillator Design

The core of XILS 505 is a Top Octave Divider oscillator, the same concept used in many electronic organs and string machines of the 1970s and 80s. XILS Lab describes it as a faithfully emulated, aliasing-free design providing up to 49 voices of polyphony.

Because all notes derive from one shared high-frequency oscillator, they stay in phase, so there is no drift between octaves. The developer notes that this shared tuning also means every note responds the same way to the glide section, which produces the distinctive effect associated with this family of instruments.

The string section has its own filter, waveform mangling and AR settings. The synthesizer section adds an ADSR, a 24 dB analog filter and a retrigger function called Second Touch, which recreates a monophonic play mode of the original hardware.

Modulation, Effects and Workflow

XILS 505 includes a modulation matrix with six nodes, connecting 14 sources to 24 destinations. A main LFO controls vibrato, a second LFO can be assigned freely in the matrix, and a DADSR envelope is also available as a modulation source.

The built-in effects are a quadruple BBD chorus/ensemble with a separate send level for each section, a raw analog phaser, a vintage reverb and a true stereo space effect. The mixer panel gives control over the relative levels of the human voices and the ensemble dry/wet balance.

All parameters can be controlled via MIDI CC in your DAW. A preset manager lets you tag presets and search them by multiple criteria.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

DeveloperXILS Lab
TypePlugin
CategorySynth
FormatsVST2, AU, AAX, Standalone
Operating systemsWindows, macOS
Architecture64-bit
Free trialYes
05FAQ

Questions, answered

What formats does XILS 505 support?

XILS 505 is available in VST2, AU, AAX and Standalone formats, in 64-bit. It runs on Windows and macOS.

What do I need to use XILS 505?

XILS 505 is a plugin, not a standalone application, so it must be loaded into a compatible music software host. The developer lists Mac OS X 10.8 and later and Windows 7, 8 and 10 as supported systems.

Does XILS 505 support MIDI control?

Yes. All parameters can be controlled via MIDI CC in your DAW.

07Developer

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