Pedals that stack with the Catalinbread Perseus

Soldano SLO

Into a transparent tone, Soldano SLO brings the high gain it's missing

Klon KTR

Run Klon KTR into that transparent platform and it finally gets some medium gain

Boss BF-2 Flanger

Put Boss BF-2 Flanger after Catalinbread Perseus in the signal chain, clear of Catalinbread Perseus's own gain stage

Electro-Harmonix Bass Preacher

Electro-Harmonix Bass Preacher leans toward compressed, and that's a real, usable character to pair with

Malekko Electro-Harmonix Memory Toy Analog Delay

Malekko Electro-Harmonix Memory Toy Analog Delay's modulated voice goes after Catalinbread Perseus in the signal chain — it's not there to compete with Catalinbread Perseus's own octave character — goes in the amp's FX loop (or last, into a clean amp)

Strymon BigSky

Keep Catalinbread Perseus's octave voice out front: Strymon BigSky goes after Catalinbread Perseus 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)