Marshall JCM800 2205 preset

Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The JCM800 2205 is the 50-watt split-channel head, sharing the 2210's preamp board with two EL34s and a different output transformer. It has a footswitchable clean channel and a diode-clipped lead channel, with reverb and an effects loop.

• Years produced: 1983–1990
• Made in: UK
• Wattage: 50W
• Channels: 2
• Preamp tubes: 5× ECC83
• Power tubes: 2× EL34

Known for: Tom Morello.

Heard on: Bulls on Parade — Rage Against the Machine (1996); Cochise — Audioslave (2002).

Tags: british, crunch, high-gain, reverb, el34, mid-wattage, two-channel.

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.