Go to index.php?id=modular
Intellijel Rubicon

The thru-zero frequency modulation of Rubicon is ideal for experimenting with FM synthesis. Rubicon is an analog VCO design masterpiece, originially created by Dave Dixon with Intellijel. It is a unique Eurorack module, now offered as an add-on module for Modular.

The Rubicon is an analog triangle core VCO that is capable of thru-zero frequency modulation. It is a feature packed VCO with multiple simultaneous waveform outputs, including waves that are multiples or divisions of the base frequency.

Very impressive! I was making quite complex patches with modules cross modulating each other and the results were very close to what I get on my real hardware.

Danjel van Tijn, founder of Eurorack manufacturer Intellijel

In Short

  • High precision emulated Triangle core
  • Switchable linear and (for the first time in any module) exponential TZFM (through-zero FM)
  • Linear index VCA for dynamic control of TZFM depth
  • Symmetry control (full clockwise is normal, full counter-clockwise gives reversed waveforms, centered the VCO is at 0 Hz) with CV
  • 12 primary waveform types: sine, sigmoid, double sigmoid, triangle, saw, double saw, zigzag, square, pulse (center modulated), pulse (edge modulated), double pulse
  • Suboctave circuit with -1 and -2 octaves. The suboctave output is affected by fm just like the main signals
  • Soft sync (also known as reversing sync) with attenuator
  • Hard sync with selectable reset direction (determines if the triangle starts moving up or down after a reset, very useful in LFO mode)
  • Pulse-width modulation and exponential FM with dedicated attenuators
  • Requires Modular

Intellijel Rubicon sound examples

An assortment of sounds made with the Intellijel Rubicon add-on for Modular

Intellijel Rubicon sound examplesAn assortment of sounds made with the Intellijel Rubicon add-on for Modular
Click to show Danjel van Tijn

Very impressive! I was making quite complex patches with modules cross modulating each other and the results were very close to what I get on my real hardware.

Danjel van Tijn, founder of Eurorack manufacturer Intellijel

Click to show Fredrik Mjelle

Rubicon and µFold are lovely combined, together they make a great complex oscillator. Super flexible in timbre and easy to work with. The sound sucks you in, with a lot of depth and presence, and the harmonics and overtones are really sweet, warm and alive.

Fredrik Mjelle a k a Beem, Electronic artist and music producer

Click to show Kabuki

The Rubicon is a true desert island module as each of the seven waveforms sound full and warm. And if thru-zero FM with 3 different sine and pulse types is still not enough, the Rubicon can also double as a LFO.

Jan Hennig a k a Kabuki, music producer and sound designer (New Forms, V Recordings)

Click to show John Tejada

Thru-zero frequency modulation is fantastic and being able to take multiple Rubicon's with me on the go with Modular is amazing. Having the same hardware module and sound that I'm used to working with in Modular is a real dsp game changer for me and my workflow.

John Tejada, Electronic music artist, music producer, DJ and record label owner

Click to show Fredrik Jonasson (Silencio Stampa, White Birches)

Several of my favorite software effects are made by Softube and it was with high expectations that I threw myself over the Intellijel emulations. I am amazed by the authenticity that Softube has managed to create.

Fredrik Jonasson, Composer and synthesist (White Birches, Silencio Stampa)

Click to show Soundbytes.net

The Intellijel modules deserve a mention all of their own—they're elegant and very powerful.

Jon K. Carroll, Soundbytes Online Magazine.