I added a PCB layout to the bottom of the post.
Here's a nice active Baxandall qualizer that I designed. Originally I did a layout for a schematic called "Bax in a box" (google it and you'll find it) that worked ok, but it was just "semi-active". The dual op-amp was just acting as a buffer and a make-up gainstage, so this is my take on an improved truly active version.
You can put after your favourite fuzz or whatever, or just in a stand alone box.
All the layouts are Verified unless noted.