The limited edition MXR CSP104 Vintage Script Logo Distortion + offers custom shop distortion with industrial grade toughness in one pedal! The original design is hand-built, point to point using components that conform to 1970s specifications to deliver that classic sound previously available only through hard-to-find vintage pedals. The battery-only, low-current effect uses germanium diodes to create massive gain for all of the classic tube amp crunch you might desire. A tweak of the Distortion knobs lets you adjust the balance of clean to distorted signals for a touch of rich texture or a sonic assault of retro crunch, while the Output control gives you enough power to boost your signal through the mix for your big solo.