Pedals that stack with the Marshall Studio Classic SC20H 20W Head

Amptweaker Big Rock Pro

Push the SC20H's biting, JCM800-voiced midrange with the Big Rock Pro's fat, modern distortion and the crunch compounds fast.

Catalinbread Dirty Little Secret

Stack the DLS into the SC20H's real JCM800 bite for a rowdier push than the amp's own preamp gain alone.

Catalinbread Dirty Little Secret Mk2

Stack the DLS Mk2 into the SC20H's already-aggressive JCM800 bite for gain that pushes past what the amp reaches alone.

Death By Audio Moonbeam

Run the Moonbeam's stereo analog phasing after the SC20H's aggressive JCM800-style bite so the sweep colors an already-saturated tone.

Universal Audio UAFX Max Preamp & Dual Compressor

Run the UAFX Max's compressor ahead of the SC20H so the amp's aggressive JCM800 bite starts from an already-evened signal.

Empress Echosystem

Keep the Echosystem in the SC20H's loop, after that amp's aggressive JCM800-style bite, so the shimmering reverb stays controlled instead of picking up extra grit. — goes in the amp's FX loop (or last, into a clean amp)

MXR Analog Delay

Slapback from the Analog Delay sits behind the SC20H's aggressive JCM800-style bite without smearing the amp's midrange attack. — goes in the amp's FX loop (or last, into a clean amp)