Pedals that stack with the Crazy Tube Circuits Constellation OC41

Catalinbread Callisto Mk. II

Keep Crazy Tube Circuits Constellation OC41's germanium voice out front: Catalinbread Callisto Mk. II goes after Crazy Tube Circuits Constellation OC41 in the signal chain so its modulated voice doesn't muddy it

Xotic BB Preamp

Xotic BB Preamp leans toward bright, and that's a real, usable character to pair with

MXR Micro Amp

MXR Micro Amp stacks clean boost on top of the fuzzy already here

Ashdown Velvet Compressor

Ashdown Velvet Compressor leans toward compressed, and that's a real, usable character to pair with

Mooer woodverb

Run Mooer woodverb after Crazy Tube Circuits Constellation OC41 in the signal chain, clear of Crazy Tube Circuits Constellation OC41's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Dunlop - MXR Carbon Copy Deluxe Analog Delay

Keep Dunlop - MXR Carbon Copy Deluxe Analog Delay after Crazy Tube Circuits Constellation OC41 in the signal chain, clear of Crazy Tube Circuits Constellation OC41's own gain stage — goes in the amp's FX loop (or last, into a clean amp)