I created this instrument because I really liked the simplicity and sounds of my Korg EMX-1 with upgraded tubes. My goal was to have a whole range of sound possibilities inside one easy controllable rack so I emulated some of the oscillator models and a few of my favorite effects.


  • Single Oscillator with noise or click
  • Dual Oscillator with detune and transpose
  • Unison with detune and transpose
  • Additive with FM
  • PCM with FM
  • Amp and Arp section
  • 3 Multi FX with each 8 editable effects
  • LFO, EQ and Tube Drive


aurex ERX-1

Please consider donating if you like this.

I spend a lot of time creating ERX-1, this was a complicated device. Thanks.



Here's a direct link to the aurex racks .adg files. These include

  • aurex MFX2
  • aurex TRACK FX
  • aurex SEND FX
  • aurex MFX 1 (and some variations)
  • all my ableton live skins.


If you like this stuff you can always treat me a coffee/beer/pizza ;)