For those after the coveted "dying battery" tone in their rig without the hassle of keeping a bunch of actual dying batteries around, consider the MXR M236 Super Badass Variac Fuzz. Built on the foundation of a redesigned vintage fuzz circuit, the M236 sports an easy-to-use interface of tone, output, and gain, along with the pedal's secret weapon: the Variac knob. Playing with this control allows you to toggle between a 5V and 15V emulation for sounds ranging from a saggy warm bite to a full headroom roar in a compact, no-nonsense package.