Marshall JCM800 2210 preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The JCM800 2210 is the 100-watt split-channel head. It has two footswitchable channels, the lead with diode clipping for extra gain, plus valve-driven spring reverb, an effects loop and four EL34s. The same preamp board was used in the 50-watt 2205.

• Years produced: 1983–1990
• Made in: UK
• Wattage: 100W
• Channels: 2
• Preamp tubes: 5× ECC83
• Power tubes: 4× EL34

Known for: Bill Kelliher.

Heard on: Blood and Thunder — Mastodon (2004).

Tags: british, crunch, high-gain, reverb, el34, high-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.