Pedals that stack with the Walrus Audio Defcon 4 Boost

Soldano SLO

The transparent tone has headroom to spare — Soldano SLO gives it high gain to fill it with

Pigtronix Octava Micro

Run Pigtronix Octava Micro into that transparent platform and it finally gets some high gain

EarthQuaker Devices Grand Orbiter V3

Put EarthQuaker Devices Grand Orbiter V3 after Walrus Audio Defcon 4 Boost in the signal chain, clear of Walrus Audio Defcon 4 Boost's own gain stage

Xotic SP Compressor

Xotic SP Compressor leans toward mid-forward, and that's a real, usable character to pair with

Strymon BigSky

Strymon BigSky's ambient voice goes after Walrus Audio Defcon 4 Boost in the signal chain — it's not there to compete with Walrus Audio Defcon 4 Boost's own clean boost character — goes in the amp's FX loop (or last, into a clean amp)

JHS 3 Series Oil Can Delay

Keep Walrus Audio Defcon 4 Boost's clean boost voice out front: JHS 3 Series Oil Can Delay goes after Walrus Audio Defcon 4 Boost 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)