Pedals that stack with the Old Blood Noise Endeavors Float Duo Moving Filter

Beetronics Buzzter Boost Preamp

What Beetronics Buzzter Boost Preamp brings here leans toward transparent — that's worth building a pairing around

Catalinbread Giygas

Catalinbread Giygas leans toward octave, and that's a real, usable character to pair with

Empress Echosystem

Keep Empress Echosystem after Old Blood Noise Endeavors Float Duo Moving Filter in the signal chain, clear of Old Blood Noise Endeavors Float Duo Moving Filter's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Keeley Halo

Keep Old Blood Noise Endeavors Float Duo Moving Filter's ambient voice out front: Keeley Halo goes after Old Blood Noise Endeavors Float Duo Moving Filter 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)