Marshall 2000Pre2 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Marshall JCM800 Series Model 2000 is a rare 250W variant of the JCM800 platform, using additional output tubes for extreme headroom in large-venue applications. It represented the top of the JCM800 power range and was produced in limited numbers for professional touring use.

Tags: british, high-power, jcm800, vintage.

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.