Pedals that stack with the SolidGoldFX Aurras Optical Vibraphase

Wren and Cuff Box of War Small Foot Fuzz

Wren and Cuff Box of War Small Foot Fuzz's high gain fills in what this low gain tone doesn't make on its own

Black Arts Toneworks LSTR Fuzz

Run Black Arts Toneworks LSTR Fuzz into that low gain platform and it finally gets some fuzzy

Red Witch Titan

Put Red Witch Titan after SolidGoldFX Aurras Optical Vibraphase in the signal chain, clear of SolidGoldFX Aurras Optical Vibraphase's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

EarthQuaker Devices Afterneath

EarthQuaker Devices Afterneath's ambient voice goes after SolidGoldFX Aurras Optical Vibraphase in the signal chain — it's not there to compete with SolidGoldFX Aurras Optical Vibraphase's own modulated character — goes in the amp's FX loop (or last, into a clean amp)