The Black Cat OD boost is a very clever pedal, or rather "two pedals in one". One side is a fairly loud clean booster with its own footswitch and level control. The other side is a nicely voiced overdrive that goes from mild to wild.
The toggle on the pedal's face lets you put the boost before the OD for more gain, or the OD before the boost to have a handy "LOUDER!" button after your OD base tone.
Made in the USA