Pedals that stack with the Crazy Tube Circuits Crossfire Overdrive Combo

Browne Amplification Carbon

What Browne Amplification Carbon brings here leans toward crunchy — that's worth building a pairing around

Soldano SLO

Into a transparent tone, Soldano SLO brings the high gain it's missing

Boss BF-2 Flanger

Put Boss BF-2 Flanger after Crazy Tube Circuits Crossfire Overdrive Combo in the signal chain, clear of Crazy Tube Circuits Crossfire Overdrive Combo's own gain stage

Electro-Harmonix Bass Preacher

Electro-Harmonix Bass Preacher leans toward compressed, and that's a real, usable character to pair with

MXR M169 Carbon Copy Analog Delay

Run MXR M169 Carbon Copy Analog Delay after Crazy Tube Circuits Crossfire Overdrive Combo in the signal chain, clear of Crazy Tube Circuits Crossfire Overdrive Combo's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Malekko Electro-Harmonix Memory Toy Analog Delay

Malekko Electro-Harmonix Memory Toy Analog Delay's modulated voice goes after Crazy Tube Circuits Crossfire Overdrive Combo in the signal chain — it's not there to compete with Crazy Tube Circuits Crossfire Overdrive Combo's own transparent character — goes in the amp's FX loop (or last, into a clean amp)