Marshall Valvestate Pro 120/120 preset

Close · 73/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Marshall Valvestate Pro 120/120 is a 2×120W solid-state stereo power amplifier from the Valvestate range, designed for use in rack-based or stereo guitar rigs. Its high output and MOSFET power stage provided a reliable, road-worthy option for professional touring applications.

• Years produced: 1993–2000
• Made in: UK
• Wattage: 240W
• Channels: 2
• Preamp tubes: solid-state
• Power tubes: solid-state MOSFET

Tags: solid-state, mosfet, stereo, power-amp.

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.