Pedals that stack with the VHT Redline Combo 20w AV-RL20R

Colorsound Overdriver

Colorsound Overdriver takes that crunchy character and pushes it toward clean boost

Carl Martin PlexiTone

Stack Carl Martin PlexiTone on top and a crunchy tone tightens toward clean boost

Carl Martin Crunch Drive

Into VHT Redline Combo 20w AV-RL20R, Carl Martin Crunch Drive is right at home: it's built around a clean amp's front end

Pigtronix Philosopher's Tone Micro

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

TC Electronic SCF Gold SE Stereo

TC Electronic SCF Gold SE Stereo's transparent voice goes after VHT Redline Combo 20w AV-RL20R in the signal chain — it's not there to compete with VHT Redline Combo 20w AV-RL20R's own crunchy character

Death By Audio Reverberation Machine

Run Death By Audio Reverberation Machine in VHT Redline Combo 20w AV-RL20R's effects loop, clear of VHT Redline Combo 20w AV-RL20R's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Strymon El Capistan

Keep VHT Redline Combo 20w AV-RL20R's crunchy voice out front: Strymon El Capistan goes in VHT Redline Combo 20w AV-RL20R's effects loop so its transparent voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)