Pedals that stack with the Mad Professor Blueberry Bass Overdrive

Soldano SLO

The transparent tone has headroom to spare — Soldano SLO gives it high gain to fill it with

Browne Amplification Carbon

Browne Amplification Carbon leans toward crunchy, and that's a real, usable character to pair with

Boss BF-2 Flanger

Put Boss BF-2 Flanger after Mad Professor Blueberry Bass Overdrive in the signal chain, clear of Mad Professor Blueberry Bass Overdrive's own gain stage

Seymour Duncan Vise Grip Compressor

Seymour Duncan Vise Grip Compressor's transparent voice suits Mad Professor Blueberry Bass Overdrive's own transparent character

MXR M169 Carbon Copy Analog Delay

Put MXR M169 Carbon Copy Analog Delay after Mad Professor Blueberry Bass Overdrive in the signal chain, clear of Mad Professor Blueberry Bass Overdrive's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Malekko Electro-Harmonix Memory Toy Analog Delay

Keep Mad Professor Blueberry Bass Overdrive's transparent voice out front: Malekko Electro-Harmonix Memory Toy Analog Delay goes after Mad Professor Blueberry Bass Overdrive in the signal chain so its modulated voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)