Pedals that stack with the Source Audio Programmable EQ 2

Beetronics Buzzter Boost Preamp

What Beetronics Buzzter Boost Preamp brings here leans toward transparent — that's worth building a pairing around

Catalinbread Giygas

Catalinbread Giygas's own octave character is the real reason this is worth trying

Dunlop - MXR Carbon Copy Deluxe Analog Delay

Keep Dunlop - MXR Carbon Copy Deluxe Analog Delay after Source Audio Programmable EQ 2 in the signal chain, clear of Source Audio Programmable EQ 2's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix Canyon

Keep Source Audio Programmable EQ 2's dynamic voice out front: Electro-Harmonix Canyon goes after Source Audio Programmable EQ 2 in the signal chain so its modulated voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)