Pedals that stack with the Marshall Class 5

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)

Browne Amplification Carbon leans bright right where the warm tone needs it

Goes in front of the amp

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)

Where this leans bright, Xotic BB Preamp answers back smooth

Goes in front of the amp

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)

Analog Man King of Tone leans bright right where the warm tone needs it

Goes in front of the amp

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Put Origin Effects MAGMA57 Amp Vibrato & Drive after Marshall Class 5 in the signal chain, clear of Marshall Class 5's own gain stage

Goes in front of the amp

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)

Pigtronix Philosopher King's own compressed character is the real reason this is worth trying

Goes in front of the amp

Run Catalinbread Dirty Little Secret Deluxe in Marshall Class 5's effects loop, clear of Marshall Class 5's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Run Echoplex EP-3 in Marshall Class 5's effects loop, clear of Marshall Class 5's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop