Pedals that stack with the JAM Pedals Eureka

Catalinbread Galileo

Run Catalinbread Galileo after it and the dark edge settles into something more bright

Catalinbread Formula 55

Catalinbread Formula 55's bright balances out the dark tone

Orange King-Comp

Orange King-Comp leans toward bright, and that's a real, usable character to pair with

IdiotBox Effects End of Line

Keep JAM Pedals Eureka's germanium voice out front: IdiotBox Effects End of Line goes after JAM Pedals Eureka in the signal chain so its bright voice doesn't muddy it

Alexander Pedals History Lesson Vol. 2

Put Alexander Pedals History Lesson Vol. 2 after JAM Pedals Eureka in the signal chain, clear of JAM Pedals Eureka's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Catalinbread Csidman Ghost

Catalinbread Csidman Ghost's pristine voice goes after JAM Pedals Eureka in the signal chain — it's not there to compete with JAM Pedals Eureka's own germanium character — goes in the amp's FX loop (or last, into a clean amp)