4 HP
40 mm deep
Current Draw
10 mA +12V
10 mA -12V
0 mA 5V
$99 Price in €

Available as an assembled Module and as a DIY project.

No info about availability.

DIRT is our new 4HP low-pass filter / effect for the Eurorack modular synth platform.

Inspired by one of our favorite 'noisy' filters, the DIRT is an unapologetic filter / effect that produces interesting and unique effects via the Bias knob, accessible from the front panel.

It's not a traditional filter; it's an effects module with filtering, ring mod effects, wave shaping and even outright brutal harmonic distortion.

DIRT likes to square things up a bit, so throw in a triangle, sawtooth, sine or other wave forms for different style effects. Even plugging a guitar (using an external amplification module) into the DIRT produces some great sounds and heavy distortion.


  • CUTOFF = Cutoff Frequency

  • RESONANCE = Increase the Q!

  • BIAS = Set the bias correctly or not, the choice is yours


  • CUTOFF CV IN = Voltage range changes depending on where CUTOFF knob is positioned. External attenuation will be needed for fine modulation.

  • AUDIO IN = Audio Input

  • AUDIO OUT = Audio Output


Ø 2.76 (37 Votes) Average Rating
submitted Jul 27th 2014, 02:49 by lab-77 | last Change Mar 31st 2018, 20:09 by FG-Modular

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