Marshall AFD100 preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

Marshall's Slash signature head, voiced after the modified Marshall behind Appetite for Destruction. It is a single-channel 100-watt design with five ECC83s and four 6550s, and switches between the #34 mode (after Slash's live #34 amp) and the AFD mode. It delivers hot-rodded 1980s Marshall crunch and lead tone.

• Years produced: 2010–2011
• Made in: UK
• Wattage: 100W
• Channels: 1
• Preamp tubes: 5× ECC83
• Power tubes: 4× 6550

Known for: Slash.

Heard on: Anastasia — Slash ft. Myles Kennedy & The Conspirators (2012).

Tags: british, modern, crunch, high-gain, 6550, high-wattage.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.