Hey, you you find details on this thread:
After some helpful posts in this thread and a lot of thorough recording tests (vs going direct or my homemade ISO cab) I finally boxed up my Unicab. As usual, my splatter/spray nonsense resulted in some weird texture effects. I stole a few additions from elsewhere, like the following...
forum.pedalpcb.com
(it links to the various schematics I looked at for the extra options, etc.).