Everybody knows the Arbiter Fuzz Face
But have you ever heard of the Arbiter Treble and Bass Face?
Now you have. (Google it, it looks kind odd)
This PCB lets you build a clone of that pedal.
It is basically just a 2-band equalizer with a boost.
But charming and vintage and stuff.
Also this circuit really wants to be friends with all your fuzz an drive pedals.