Pedals that stack with the Gallien-Krueger MB150S-112 Bass Combo

Carl Martin Crunch Drive

Carl Martin Crunch Drive's crunchy fills in what this high headroom tone doesn't make on its own

J. Rockett The Dude

The high headroom tone has headroom to spare — J. Rockett The Dude gives it saturated to fill it with

Fulltone OCD Obsessive Compulsive Drive

Run Fulltone OCD Obsessive Compulsive Drive into that high headroom platform and it finally gets some fuzzy

Maestro PS-1A Phase Shifter

Keep Maestro PS-1A Phase Shifter after Gallien-Krueger MB150S-112 Bass Combo in the signal chain, clear of Gallien-Krueger MB150S-112 Bass Combo's own gain stage

Lab Ratz 3D Boum Warming Unit

Lab Ratz 3D Boum Warming Unit's own low gain character is the real reason this is worth trying

Binson Echorec Delay

Keep Binson Echorec Delay in Gallien-Krueger MB150S-112 Bass Combo's effects loop, clear of Gallien-Krueger MB150S-112 Bass Combo's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix Memory Boy Analog Delay

Keep Electro-Harmonix Memory Boy Analog Delay in Gallien-Krueger MB150S-112 Bass Combo's effects loop, clear of Gallien-Krueger MB150S-112 Bass Combo's own gain stage — goes in the amp's FX loop (or last, into a clean amp)