Pedals that stack with the Blackstar St. James 50 6L6 Head

Tone City Model B Distortion TC-T31

Feed a scooped signal into Tone City Model B Distortion TC-T31 and it comes out closer to mid-forward

Boss DS-2 Turbo Distortion

Stack Boss DS-2 Turbo Distortion on top and a scooped tone tightens toward mid-forward

Walrus Audio Voyager Mk II

Stack Walrus Audio Voyager Mk II on top and a scooped tone tightens toward mid-forward

Maestro Orbit

Maestro Orbit's modulated voice goes after Blackstar St. James 50 6L6 Head in the signal chain — it's not there to compete with Blackstar St. James 50 6L6 Head's own mid-forward character

Pigtronix Philosopher's Tone Micro

Pigtronix Philosopher's Tone Micro leans toward sustaining, and that's a real, usable character to pair with

Death By Audio Reverberation Machine

Put Death By Audio Reverberation Machine in Blackstar St. James 50 6L6 Head's effects loop, clear of Blackstar St. James 50 6L6 Head's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Alexander Pedals Marshmallow

The Marshmallow's pitch-shifted, expressive reverb belongs in the St. James's effects loop, after the amp's own compressed, sagging clean channel does its work. — goes in the amp's FX loop (or last, into a clean amp)