FX70C Corrosion
The DOD FX70C Corrosion is a high-gain distortion pedal produced between 1997 and 1999, known for its aggressive, metallic, and industrial-infused sound. It is a re-release of the FX70 Metal X, maintaining the same internal circuitry but featuring a distinctive silver finish with "corroded" graphic aesthetics. Designed for heavy rock and metal genres, the pedal provides a sharp, cutting edge to guitar tones. The circuit features three 4558-type op-amps, delivering thick, harmonically rich distortion often compared to the saturated sound of a Mesa/Boogie-style rectified amplifier. Its simple three-knob layout includes Level, Tone, and Corrosion (Distortion) controls, allowing users to sculpt raw, gritty textures while preserving note articulation. Housed in a durable metal enclosure, it operates on a standard 9V power supply. While primarily built for electric guitars, it has gained a cult following among bassists and experimental musicians for its uncompromising, "buzzy" character and ability to produce massive distortion at any volume.