Hax Kit

HAX provides gross ring modulation all the way from snappy tremolo to hypersonic screams.

This is a full kit set in the Eurorack format.

Availability: In stock




The Dwarfcraft Hax module is part ring mod, part oscillator, and part mutator machine that belts out fuzzy, fuzzy noise. The Hax module creates a squarewave at a predetermined musical distance from your input signal.

The Hax's tune dial adjusts the ring modulation. The Blend control lets you have full ring modulation, or a clean tone dialed in the other direction. The Hax module gives an almost-pitch-shifter effect to your guitar, although the tone you get is not clean by any means.

Hax has a wide oscillator range, from put-put-put robot farts to demon squeals. The High/Low Stop switch changes the oscillator's range. The Hi/Low switch quick switches between tones. You get a little bit smoother control on the pitch in the high range, but it's much tougher to dial in a tremolo-type effect. The dirty tone you can get in the high range is a mind-bending freq-out that would make Stereolab and Dr. Robert Moog happy.

Finally, the Crash knob, while not easily controllable, lends some truly insane sonic qualities to Hax ring modulator DIY kit. The Crash glitches out hard in the best way possible.


  • Ring tune dial
  • Blend control
  • Hi/Low stop switch
  • Bypass switch
  • Crash knob
  • LED illumination

Specs & Downloads

Specs & Downloads

Manufacturer Dwarfcraft Devices
HP 8
Depth No
+12V No
-12V No
+5V No
Additional Resources Build Guide


Customer Reviews (1)

Sweet Little Pseudo-RingmodReview by Justin
This kit is a rad, low parts count ringmod (similar in design to the Logan 5, or Tim Escobedo's "Thing Modulator") that is super capable of bellowing out gritty nonsense from an LM567 PLL.
The suggested polarity of the supplied keyed IDC header was incorrect in the build guide. If you're a novice and you don't want to be bothered with desoldering the power header then definitely reach out for verification of the correct polarity.
If you can DIY 'til ya die and you've got a couple vactrols kicking it, then maybe you ought to throw the Logan 5 down on vero instead. (Posted on 3/24/2017)

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