A faithful re-creation of the original late '60s circuit, the Electro-Harmonix Triangle Big Muff delivers a wide range of tones from its three simple controls. Guitarists at Sweetwater especially love the sweep of its Tone knob, which basically blends between lowpassed and highpassed splits of your signal. Fully counterclockwise, it sounds dark and brooding — fully clockwise sounds thin and focused. Somewhere in between, your ideal fuzz tone awaits.