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When you’re in a smash-it-up, search-and-destroy kind of guitar mode, few things sate the inner troglodyte like a one-knob fuzz. One-knob fuzzes historically existed for a single reason—because two knob fuzzes are hideously complicated affairs that obstruct direct expression of the fuzz id.
The problem with EQD’s latest one-knob fuzz—at least from the caveman perspective—is that it feels, well, thoughtful! Here is a stupidly simple-on-the-surface stomp that manages nuance, variation—even touch sensitivity for crying out loud! In fact, you might spend a long time after your Erupter experience reflecting deeply on the rather immense potential and possibilities of the pedal—which might make the Erupter the most paradoxically thought-provoking one-knob fuzz since Colorsounds walked the Earth.
In describing the Erupter design process, EQD founder Jamie Stillman discussed other paradoxes he encountered. The most vexing? The simpler he made his creation, the more essential it became that every part and component value was exactly right. His many-year quest to get everything just so is plain to see on the circuit board, which is laid out carefully and economically, and populated by top-flight components.
Erupter’s single knob doesn’t control volume or gain. Instead, it controls bias, or the flow of voltage to the circuit. The gain or fuzz level is effectively the same as a gain knob set to maximum. Volume, meanwhile, is fixed somewhere just north of really loud. That means using your guitar volume to control your overall output. Thankfully that works really well with Erupter—no small feat for a silicon fuzz.
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