Pedals that stack with the Boss XS-1

Fjord Fuzz Odin

The Odin's doom-heavy stoner fuzz gives the XS-1's dry octave tracking a genuinely dense signal to divide.

EarthQuaker Devices Dirt Transmitter

Put the XS-1 ahead of the Dirt Transmitter — octave tracking is cleanest off a dry signal, and the drive can push the blended output as hard as you want.

Dawner Prince Boonar

The Boonar's vintage studio delay trails the XS-1's dry, live octave tracking with a harmonically layered signal to echo. — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix XO Deluxe Memory Man

Run the Memory Man's lush analog echo after the XS-1's dry, live octave tracking and the repeats carry the octave layers forward. — goes in the amp's FX loop (or last, into a clean amp)