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Intellijel Korgasmatron II

Taking inspiration from a classic Japanese synth, Intellijel Korgasmatron II is a dual voltage controlled filter which can also be used as a limited oscillator. It has a completely independent six mode filter on each side. The filters can be blended to taste with the Xfade knob. Korgasmatron II is an add-on module for use with Modular.

While Korgasmatron II takes its name from a classic Japanese synth released in the early 80s, it's far from a clone. Korgasmatron II offers much more grit and flexibility than its predecessor.

The Korgasmatron hardware is probably my favourite filter/drive Eurorack unit. The software in Modular does not disappoint at all, it sounds crunchy and in your face.

Rik Simpson, Record producer, sound engineer and musician known for his work with Coldplay

Korgasmatron II has a completely independent six mode filter output on each side which are selected via a rotary switch. It also has a special overdrive feature that enables the output signal to be soft or hard clipped depending on hard you drive the input signal. This is controlled via the input amp which starts clipping when you put the knob past 12 o'clock (assuming an standard 10 Vpp waveform). The hard/soft clipping differences are subtle on simple waveforms sources and dramatic on more complex sources (such as chords).

With two multimode filters based on the famed MS20 circuit featuring resonant drive controls and serial, parallel or crossfade options, the Korgasmatron looks rather intimidating at first. But learning the ropes is well worth it, as it produces some gritty-sounding modulations.

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

Just like the original hardware, the Intellijel Korgasmatron II can go from clean and precise to howling and agressive, from classic MS-20 type sounds to totally new territory, all depending on how you tweak the front panel controls.

In Short

  • Dual filter + Xfade
  • Six filter types per filter (LP 1-pole, LP 2-pole, BP 1-pole, HP 2-pole, HP 1-pole, BR 1-pole)
  • Both filters track 1v/oct over 3-4 octaves (can be used as a limited VCO)
  • Switch to configure serial or parallel routing
  • Output soft and hard clipping
  • Resonance soft clipping control (Q drive)
  • Requires Modular

Intellijel Korgasmatron II sound examples

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

Intellijel Korgasmatron II sound examplesAn assortment of sounds made with the Intellijel Korgasmatron II add-on for Modular
Click to show Rik Simpson

The Korgasmatron hardware is probably my favourite filter/drive Eurorack unit. The software in Modular does not disappoint at all, it sounds crunchy and in your face.

Rik Simpson, Record producer, sound engineer and musician known for his work with Coldplay

Click to show Kabuki

With two multimode filters based on the famed MS20 circuit featuring resonant drive controls and serial, parallel or crossfade options, the Korgasmatron looks rather intimidating at first. But learning the ropes is well worth it, as it produces some gritty-sounding modulations.

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

Click to show Escape from Noise

Intelijell Designs Korgasmatron II is just as dirty and incredibly powerful in Softubes rendering as it is in real life. One of the most complete and versatile filters you will ever find regardless if it's in 3U or on the screen.

Ulf Lundblad, Founder of Escape from Noise webstore

Click to show John Tejada

The input clipping through the 2 filter types sounds fantastic and the best part of the Modular software is I can easily use multiple Korgasmatron modules.

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

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 Pontus Hagberg a k a Firechild

The unique dual filter design is taking you to sonic worlds you have never been to before!

Pontus Hagberg a k a Firechild, Producer and songwriter.

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.