Pedals that stack with the Tech 21 PED PSA Preamp 30 TH ANN

Electro-Harmonix Deluxe Electric Mistress

Run Electro-Harmonix Deluxe Electric Mistress after Tech 21 PED PSA Preamp 30 TH ANN in the signal chain, clear of Tech 21 PED PSA Preamp 30 TH ANN's own gain stage

Suhr Shiba Drive

Stack Suhr Shiba Drive on top and a high gain tone tightens toward mid-forward

Browne Amplification Gritador

Browne Amplification Gritador takes that high gain character and pushes it toward mid-forward

Hungry Robot Moby Dick V2

Run Hungry Robot Moby Dick V2 after Tech 21 PED PSA Preamp 30 TH ANN in the signal chain, clear of Tech 21 PED PSA Preamp 30 TH ANN's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Boss DD-500 Digital Delay

Keep Tech 21 PED PSA Preamp 30 TH ANN's analog warmth voice out front: Boss DD-500 Digital Delay goes after Tech 21 PED PSA Preamp 30 TH ANN in the signal chain so its shimmer voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Warm Audio Pedal 76 Compressor

Warm Audio Pedal 76 Compressor's own tight character is the real reason this is worth trying