Sunn O))) Life Pedal is a distortion with a blendable analog octave up and a booster combined in one compact package. The “Amplitude” side is faithfully modeled after the classic “White Face” distortion unit, using modern, reliable components to last a lifetime. The only modifications made to the original circuit are in the clipping section. The traditional circuit uses a single pair of silicon diodes for a tight, compressed crunch. The Sunn O))) Life Pedal introduces two additional clipping options to better adapt to different rigs. The first position is no diodes to allow for full, grinding OpAmp assault at maximum volume. The second position utilizes two silicon diodes and one LED in an asymmetrical clipping configuration. This delivers a slightly compressed and smooth crunch, similar to a valve amplifier. The last position is the stock double silicon diode configuration which provides that classic tone you know and love.