Pedals that stack with the Electro-Harmonix Spruce Goose

ZVEX Fuzz Factory

ZVEX Fuzz Factory leans smooth right where the bright tone needs it

Hughes & Kettner Tube Rotosphere MKII The Analog Leslie Simulator

Keep Electro-Harmonix Spruce Goose's edge of breakup voice out front: Hughes & Kettner Tube Rotosphere MKII The Analog Leslie Simulator goes after Electro-Harmonix Spruce Goose in the signal chain so its transparent voice doesn't muddy it

Electro-Harmonix Green Russian Big Muff

Run Electro-Harmonix Green Russian Big Muff after it and the bright edge settles into something more smooth

Ashdown Velvet Compressor

Ashdown Velvet Compressor's own compressed character is the real reason this is worth trying

Boss DD-3 Digital Delay

Boss DD-3 Digital Delay's transparent voice goes after Electro-Harmonix Spruce Goose in the signal chain — it's not there to compete with Electro-Harmonix Spruce Goose's own edge of breakup character — goes in the amp's FX loop (or last, into a clean amp)

Caroline Guitar Company Kilobyte

Run Caroline Guitar Company Kilobyte after Electro-Harmonix Spruce Goose in the signal chain, clear of Electro-Harmonix Spruce Goose's own gain stage — goes in the amp's FX loop (or last, into a clean amp)