synthrotek dirt price : $64.99

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.

controls:
cutoff = cutoff frequency
resonance = increase the q!
bias = set the bias correctly or not, the choice is yours

inputs/outputs:
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

other info:
pcb dimensions: 4 x 1.5 inches
4hp
power consumption: >1ma