MXR M236 Super Badass Variac Fuzz for Sale

The MXR M236 Super Badass Variac Fuzz is a compact stompbox that delivers thick, saturated fuzz tones with a built-in Variac-style voltage sag control for dynamic, amp-like breakup. It stands out for its ability to mimic the saggy response of vintage tube amps run at reduced voltage, producing everything from gated spit to velvety sustain. Guitarists such as John Mayer and Billy Corgan have incorporated similar MXR fuzz circuits into their rigs for live and studio use.

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MXR M236 Super Badass Variac Fuzz for Sale

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History & Background

MXR Brand Origins

MXR was founded in 1972 in Rochester, New York, and quickly became known for durable, road-worthy effects like the Phase 90 and Distortion +. Dunlop Manufacturing acquired the brand in 1987, preserving the original circuit designs while expanding the line with modern updates.

Super Badass Series Launch

The Super Badass Variac Fuzz (model M236) was introduced in 2013 as part of MXR’s effort to blend classic fuzz circuits with practical performance features. Its Variac knob directly adjusts the internal voltage from 3V to 9V, recreating the starved-power sounds popularized by players in the late 1960s and early 1970s.

Notable Users and Evolution

While not tied to one signature artist, the M236 has been adopted by session players seeking authentic vintage fuzz without the maintenance issues of older pedals. The circuit remains largely unchanged since release, with only minor PCB updates for noise reduction.

🎯 Buyer's Guide

When shopping for an MXR M236, verify the unit carries the correct model number on the backplate and that the Variac knob rotates smoothly through its full voltage range. Used examples from 2013–2018 often show wear on the footswitch but retain original components; check for battery corrosion inside the enclosure.

New units typically retail between $120 and $150, while used pedals in good condition sell for $80–$110 depending on box and condition. The pedal has no major variants, though some players modify the internal trimpot for even lower voltage headroom.

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