Udaloff Crunch Harmonics Injector

The Udaloff Crunch Harmonics Injector is an analog distortion pedal for electric guitar, built around a MOSFET-based circuit. according to RockBoard's PedalPedia, it produces tones from light crunch to thick overdrive when the gain levels reach maximum, with dynamics comparable to tube-based effect units, giving each note definition and a smooth transition from attack to sustain¹. It sits in the broad family of distortion pedals, alongside overdrive pedals and fuzz pedals.

What it does

The Crunch Harmonics Injector covers the gain range most players use between a clean amp and full distortion. At lower settings RockBoard's PedalPedia describes light crunch; turning the gain up reaches thick overdrive¹. The MOSFET design is the point of the circuit: MOSFETs (metal-oxide-semiconductor field-effect transistors) are used for clipping and shaping the signal instead of the diode arrangements found in many distortion pedals, and the maker credits the circuit with tube-like dynamics, note definition, and a smooth move from attack into sustain¹.

Power

The pedal runs on 9V DC with a center negative plug and draws 1mA¹. That is a very light load, small enough that it sits comfortably on a daisy-chained supply alongside other pedals.

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