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Regular price $149.00 USD
Regular price Sale price $149.00 USD
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I set out to build a one knob fuzz and while technically it has only one knob, I just couldn't leave it there. You know versatility is crucial for me so I've included two additional external controls to further allow for shaping this gain monster to taste.

What is it? Well, it's simply a gain stage with no fancy EQ or anything. Just raw pure opamp rage. I've included the blend and mass controls so you can stack and layer it with other builds to thicken things up or just keep some of your original guitar/bass attack. 

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Name Location Description
Level Internal (trim) Controls the output volume.
Blend External Mix between 100% buffered dry signal and 100% wet signal to bring back the dynamics of your clean signal.
Opamp Abuse External Gain, an obscene amount of it.
Mass External Variable high pass filter for huge doom low end or tight thrash attack.
Clean Gain Internal (Trim) Adjust the amount of gain on the clean side of the blend.
Default setting at max (full CW).
Bypass LED Brightness Internal Adjust overall brightness of front LED.
Default setting at minimum (full CCW).


This product can accept up to 18VDC supply input for additional headroom.



Soft click (1.1KGf) mechanical 3PDT.


  • Free Shipping

    Free USPS Priorty Mail shipping in the continental USA.

    International shipping rates calculated at check out.

    Please note international shipping times can be days to weeks. Unfortunately, this is out of my control.

  • Built To Order

    Unless otherwise noted, all builds are built to order. I build on my nights and weekends so build-time can vary but is typically 7-9 days from order. Excluding preorders. For preorders, see preorder details on product page for estimated shipping.