Pedals that stack with the Randall RG Series 212 150W 3-Channel Combo

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)

Stack Browne Amplification Gritador on top and a high gain tone tightens toward mid-forward

Goes in front of the amp

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)

Nobels ODR-1 takes that high gain character and pushes it toward mid-forward

Goes in front of the amp

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)

Feed a high gain signal into Keeley Red Dirt Overdrive and it comes out closer to mid-forward

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. (high gain → shimmer)

Electro-Harmonix Deluxe Electric Mistress's shimmer voice goes after Randall RG Series 212 150W 3-Channel Combo in the signal chain — it's not there to compete with Randall RG Series 212 150W 3-Channel Combo's own high gain character

Goes in front of the amp

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

What Pigtronix Philosopher's Tone Micro brings here leans toward mid-forward — that's worth building a pairing around

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. (high gain → ambient)

Run Walrus Audio Fathom in Randall RG Series 212 150W 3-Channel Combo's effects loop, clear of Randall RG Series 212 150W 3-Channel Combo'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. (high gain → ambient)

Run Mooer A7 Ambience in Randall RG Series 212 150W 3-Channel Combo's effects loop, clear of Randall RG Series 212 150W 3-Channel Combo's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop