Pedals that stack with the Blackstar HT20R MkII

pushes an amp at the edge of breakupPushes an amp already sitting at the edge of breakup over the line. (edge of breakup → clean boost)

Into the HT20R's studio-clean, high-gain voice, the King of Tone's transparent boost pushes real saturation.

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)

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

Goes in front of the amp

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

Stack Greer Tomahawk on top and a high gain tone tightens toward tight

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.

JHS 3 Series Harmonic Tremolo's own voicing points at Fender-style amps, and Blackstar HT20R MkII delivers it

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)

Blackstar HT20R MkII leans into Fender-style amps, precisely the platform Origin Effects SlideRIG Compact Deluxe wants

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 → slapback)

Keep MXR Analog Delay in Blackstar HT20R MkII's effects loop, clear of Blackstar HT20R MkII'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)

Fender Hammertone Delay's pristine voice goes in Blackstar HT20R MkII's effects loop — it's not there to compete with Blackstar HT20R MkII's own transparent character — goes in the amp's FX loop (or last, into a clean amp)

Sits in the amp's effects loop