This page refer to a Stereo DUAL Chiou circuit in a double enclosure. For the "mono-pedal", have a look here. This Stereo edition include buffer on both circuit with the possibility to use as a splitter if you don't connect anything in the "Input 2" jack.
This is a full EQ-ed Boost with almost infinite dB and a complete EQ to shape your tone. Use it as a preamp or to tighten a High Gain machine.
Toggle switch bypass the eq in upper position. Tight knob cut lower frequency to let you cut the mix.
Now a little more about the design. If you don't already know him, "Le Chiou" as we call him is a little plush in the life of our designer 6 years old boy. He's quite affectionate and love to snuggle. It's a mix between a Dog (Chien in French) and Bear (Ours in French), the mixed name is then "Chi-Ou".