Pedals that stack with the Blackstar Acoustic Core 30

What Blackstar HT-Boost brings here leans toward harmonically rich — that's worth building a pairing around

Goes in front of the amp

What Boss HM-2 Heavy Metal brings here leans toward full — that's worth building a pairing around

Goes in front of the amp

Catalinbread Carbide leans toward silicon, and that's a real, usable character to pair with

Goes in front of the amp

Keep Electro-Harmonix Electric Mistress after Blackstar Acoustic Core 30 in the signal chain, clear of Blackstar Acoustic Core 30's own gain stage

Goes in front of the amp

Catalinbread Cloak's shimmer voice goes in Blackstar Acoustic Core 30's effects loop — it's not there to compete with Blackstar Acoustic Core 30's own transparent character — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop

Run Crazy Tube Circuits Echotopia in Blackstar Acoustic Core 30's effects loop, clear of Blackstar Acoustic Core 30's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop

What Keeley Compressor Plus brings here leans toward compressed — that's worth building a pairing around

Goes in front of the amp