Pedals that stack with the Hiwatt Bulldog 440SH 400W Bass Head

Marshall Guv'nor

Into a high headroom tone, Marshall Guv'nor brings the mid-forward it's missing

Boss ODB-3

Run Boss ODB-3 into that high headroom platform and it finally gets some low gain

Carl Martin Crunch Drive

Run Carl Martin Crunch Drive into that high headroom platform and it finally gets some crunchy

Maestro PS-1A Phase Shifter

Put Maestro PS-1A Phase Shifter after Hiwatt Bulldog 440SH 400W Bass Head in the signal chain, clear of Hiwatt Bulldog 440SH 400W Bass Head's own gain stage

Lab Ratz 3D Boum Warming Unit

Lab Ratz 3D Boum Warming Unit leans toward low gain, and that's a real, usable character to pair with

Binson Echorec Delay

Run Binson Echorec Delay in Hiwatt Bulldog 440SH 400W Bass Head's effects loop, clear of Hiwatt Bulldog 440SH 400W Bass Head's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Dunlop MXR M299 Carbon Copy Mini

Hiwatt Bulldog 440SH 400W Bass Head leans into a clean amp's front end, precisely the platform Dunlop MXR M299 Carbon Copy Mini wants — goes in the amp's FX loop (or last, into a clean amp)