Pedals that stack with the Marshall VT-1

Walrus Audio EB-10

What Marshall VT-1 brings here leans toward modulated — that's worth building a pairing around

Xotic RC Booster

What Xotic RC Booster brings here leans toward transparent — that's worth building a pairing around

Empress Echosystem

Empress Echosystem's pristine voice goes after Marshall VT-1 in the signal chain — it's not there to compete with Marshall VT-1's own modulated character — goes in the amp's FX loop (or last, into a clean amp)

Keeley Halo

Run Keeley Halo after Marshall VT-1 in the signal chain, clear of Marshall VT-1's own gain stage — goes in the amp's FX loop (or last, into a clean amp)