This turns a mild-mannered distortion pedal into a unique and versatile fuzz -- and a great value. Features scary "zombie" fuzz, turbulent, dynamically responsive synth-like tones, "mixey" light overdrive + fuzz tones, and industrial metal sounds. It can also be used as a overdrive down to dirty boost, and its gated overdrive enables crazy boosting with controlled feedback and noise..

The Supra uses two stages of distortion and the first is modified for a good overdrive style circuit with improved bass and wider gain range. In overdrive circuit style, there is a clean signal component at all times mixing inphase with the distortion. This becomes the primary distortion signal, and the added Mix control adds in the second stage of distortion, reversed in polarity (antiphase), subtracting from the lower level of distortion, so that the differences between the distortions can be emphasized and the common signal can be eliminated.

DOD's FX-55C utitilized an improved enclosure compared to their older style, JRC4560D op-amps, and more circuitry including a better silent switching bypass system. Due to the better tonal balance of the mod, its tone control circuit comes into its own without direct modification. Bypass is improved by increasing input impedance, and also a new "bleed reducer" circuit for full transparency. This modification does not produce any of the original sounds of the pedal and can not be applied to the "55" or "55B" versions of the Supra.

TESTIMONIALS

Hey Bill--

Received the SupraZombie today, and just spent an hour with it.. Verdict: GREAT! You've managed to build both a subtle AND extreme effect.. what you're doing is unique, and I applaud you for it. This thing cleans up wonderfully-- this is the type of gritty overdrive that speaks to me. On the other end, the fuzz on this has a watery, synth-y, scuzzy beauty to it. Totally musical--in fact, almost every conceivable setting is suitable to make MUSIC with. Versatile as all hell. Also gotta praise you for the tone control--with just a single knob, I can dial in ideal lows, mids, and highs that never sound muddy or brittle. Great clarity overall.
I've recently sold off nearly all my effects, and I don't think it's an accident that I was drawn to the SupraZombie. THIS is the pedal that I've been looking for. I've spent far too much time and money on boutique/modded pedals, and in the end have had very little enthusiasm for what I ended up receiving. Additionally, each and every time I asked other pedal builders to create something unique out of a DOD Grunge or other cheap-ass but highly mod-able pedal, I've received either no reply or a blunt "don't bother..cheap build, not worth it." I love what you're doing.. see, the Supra Distortion is crappy in its stock form--that's understood. You've transformed this crappy pedal into something that I deem highly desirable. I can already tell that the SupraZombie is the proper piece of gear to support my musical ideas. As a recording tool, this thing is gonna be the shit. Way to go, Bill!

!
--Craig

Suprazombie's method of distortion variation is to use mixing, including antiphase mixing. Imagine being able to control how distorted or fuzzy the sound is seperate of gain and sustain. Some of the results sound "blended" while other mixes produce a new sound with little hint of its constituent parts.

The example to the right shows graphically how this works. "A" is the positive portion of a distorted wave. "B" is more distorted (more gain) and inverted (upside down). "C" shows how these add together, forming a harsher, more complex waveform. This still only hints at the sonic possibilities. See also Intellectual Property Statement.