Pedals that stack with the Soldano Astro-20 Open Back Half Stack 3-Channel 20W

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

JAM Pedals Tubedreamer 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 → clean boost)

Feed a high gain signal into Xotic RC Booster and it comes out closer to clean boost

Goes in front of the amp

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

Stack Z.Vex Super Hard On on top and a high gain tone tightens toward clean boost

Goes in front of the amp

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

What Soldano Astro-20 Open Back Half Stack 3-Channel 20W brings here leans toward smooth — 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 → shimmer)

Run Electro-Harmonix Deluxe Electric Mistress after Soldano Astro-20 Open Back Half Stack 3-Channel 20W in the signal chain, clear of Soldano Astro-20 Open Back Half Stack 3-Channel 20W's own gain stage

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)

Keep Electro-Harmonix Canyon in Soldano Astro-20 Open Back Half Stack 3-Channel 20W's effects loop, clear of Soldano Astro-20 Open Back Half Stack 3-Channel 20W'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 → lush)

Put Meris Mercury7 Reverb in Soldano Astro-20 Open Back Half Stack 3-Channel 20W's effects loop, clear of Soldano Astro-20 Open Back Half Stack 3-Channel 20W's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop