Pedals that stack with the MXR M103 Blue Box

Electro-Harmonix Satisfaction Plus Fuzz

MXR M103 Blue Box's own octave character is the real reason this is worth trying

Catalinbread Fuzzrite Germanium

Run MXR M103 Blue Box after it and the thin edge settles into something more full

Fairfield Circuitry 900 Fuzz

Run MXR M103 Blue Box after it and the thin edge settles into something more full

EarthQuaker Devices Chelsea V1 Low End Fuzz Driver

MXR M103 Blue Box leans full right where the thin tone needs it

Mooer MFZ1 Blue Faze

Run fuzzy into MXR M103 Blue Box for more octave on top

Ibanez Tube Screamer

The Screamer's mid-hump tightens the Blue Box's glitchy, sub-octave fuzz into something more controlled.

Klon Centaur

Run the Klon after the Blue Box and its midrange boost cleans up the octave fuzz's glitchy low end into something more usable.

MXR Dyna Comp

Ahead of the Blue Box's glitchy octave fuzz, the Dyna Comp evens out pick attack before the octave-tracking circuit gets a chance to react unevenly.

MXR Phase 90

Documented together in more than one rig — the Blue Box's glitchy octave fuzz gets extra swirl from the Phase 90 stacked right after it. — also used together by 1 artist

Electro-Harmonix XO Deluxe Memory Man

Run the Memory Man's dark, tape-style echoes after the Blue Box's glitchy, sub-octave fuzz so the repeats trail that distinctive, bitcrushed texture. — goes in the amp's FX loop (or last, into a clean amp)

Roland SDE-3000D

Let the SDE-3000D's iconic digital repeats trail the Blue Box's glitchy octave fuzz instead of sitting in front of it. — goes in the amp's FX loop (or last, into a clean amp)