Robert Keeley must subscribe to the Bob Ross school of design. His "happy accident" of running a germanium transistor into a TS-style circuit led to one of his coolest overdrives yet: the Keeley Red Dirt Germanium overdrive. The RDG's deceptive simplicity conceals a wealth of expressive, dynamic, tubelike textures. This obsessively handbuilt pedal satisfies a wide range of musical tastes, from splatty Texas twang to oozing humbucker sludge and beyond. Cranking the Gain knob unearths supernatural sustain and feedback effects, while taking a spin on the Tone control dials in, or back, your guitar's natural chime without losing its crucial midrange components.