Pedals that stack with the Supro Delta King 10 (1820RTB)

Beetronics Octahive

Beetronics Octahive leans toward octave, and that's a real, usable character to pair with

Benson Amps Stonk BOX

Benson Amps Stonk BOX's own germanium character is the real reason this is worth trying

EarthQuaker Devices '- Speaker Cranker

EarthQuaker Devices '- Speaker Cranker's low gain voice suits Supro Delta King 10 (1820RTB)'s own edge of breakup character

EarthQuaker Devices Night Wire V2

Run EarthQuaker Devices Night Wire V2 after Supro Delta King 10 (1820RTB) in the signal chain, clear of Supro Delta King 10 (1820RTB)'s own gain stage

Electro-Harmonix Holy Grail Max

Electro-Harmonix Holy Grail Max's spring voice goes in Supro Delta King 10 (1820RTB)'s effects loop — it's not there to compete with Supro Delta King 10 (1820RTB)'s own edge of breakup character — goes in the amp's FX loop (or last, into a clean amp)

Eventide Space

Keep Supro Delta King 10 (1820RTB)'s edge of breakup voice out front: Eventide Space goes in Supro Delta King 10 (1820RTB)'s effects loop so its spring voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Universal Audio 1176 Compressor

What Universal Audio 1176 Compressor brings here leans toward compressed — that's worth building a pairing around