Pedals that stack with the Blackstar HT-20R MkII

Hughes & Kettner Tube Rotosphere MKII The Analog Leslie Simulator

Run the Rotosphere's psychedelic Leslie swirl after the HT-20R's clean, mid-forward British voice and the rotation has a warm signal to spin around.

Tech 21 Double Drive 3X Programmable

Stack Blackstar HT-20R MkII on top and a crunchy tone tightens toward mid-forward

Jackson Audio Bloom V2 Compressor/EQ

Run the Bloom's transparent optical compression ahead of the HT-20R and your dynamics stay even before the amp's own saturation kicks in.

Crazy Tube Circuits Echotopia

Loop the Echotopia into the HT-20R and its tape-style echo trails the amp's own British saturation instead of getting swamped by it. — goes in the amp's FX loop (or last, into a clean amp)

Crazy Tube Circuits Mirage Dual Reverb

The Mirage's dual reverb engines sit best in the HT-20R's loop, swelling behind the amp's own British crunch instead of muddying the front end. — goes in the amp's FX loop (or last, into a clean amp)