Pedals that stack with the EarthQuaker Devices Spatial Delivery V3

Dallas Rangemaster Treble Booster

The Spatial Delivery's funky, resonant envelope filter doesn't stack gain with the Rangemaster's treble boost — it just shapes the brighter signal's frequency response.

ProCo RAT 2

Run the RAT's dark, cutting distortion before the Spatial Delivery so the envelope filter has real gain and edge to track.

Electro-Harmonix XO Deluxe Memory Man

The Spatial Delivery's funky, resonant envelope filter feeds the Memory Man's lush analog echo a glitchy signal to trail off. — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix Holy Grail Max

Keep the Holy Grail Max after the Spatial Delivery — the funky envelope-filter sweep stays intact and the reverb adds natural spring decay behind it. — goes in the amp's FX loop (or last, into a clean amp)