Pedals that stack with the Donner Big Mouth Distortion

Browne Amplification Gritador

Browne Amplification Gritador pushes a crunchy tone toward mid-forward

Soldano SLO

Soldano SLO's high gain fills in what this low gain tone doesn't make on its own

Electro-Harmonix Electric Mistress

Put Electro-Harmonix Electric Mistress after Donner Big Mouth Distortion in the signal chain, clear of Donner Big Mouth Distortion's own gain stage

Wampler Ego Compressor

Wampler Ego Compressor leans toward transparent, and that's a real, usable character to pair with

Meris Mercury7 Reverb

Run Meris Mercury7 Reverb after Donner Big Mouth Distortion in the signal chain, clear of Donner Big Mouth Distortion's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Walrus Audio Fathom

Keep Donner Big Mouth Distortion's crunchy voice out front: Walrus Audio Fathom goes after Donner Big Mouth Distortion in the signal chain so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)