Pedals that stack with the Carl Martin Hydra boost

Shin's Music Dumbloid

Shin's Music Dumbloid pushes a high gain tone toward tight

Xotic EP Booster

Stack Xotic EP Booster on top and a high gain tone tightens toward clean boost

Electro-Harmonix Electric Mistress

Run Electro-Harmonix Electric Mistress after Carl Martin Hydra boost in the signal chain, clear of Carl Martin Hydra boost's own gain stage

Crazy Tube Circuits Golden Ratio

What Crazy Tube Circuits Golden Ratio brings here leans toward tight — that's worth building a pairing around

Walrus Audio Fathom

Walrus Audio Fathom's ambient voice goes after Carl Martin Hydra boost in the signal chain — it's not there to compete with Carl Martin Hydra boost's own clean boost character — goes in the amp's FX loop (or last, into a clean amp)

Meris Mercury7 Reverb

Keep Carl Martin Hydra boost's clean boost voice out front: Meris Mercury7 Reverb goes after Carl Martin Hydra boost 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)