Ceriatone JCM800 2204 preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

Ceriatone's 2204 is a hand-built take on Marshall's 50-watt single-channel JCM800 master-volume head. Three ECC83s give two cascaded gain stages with a push-pull bright gain control, a cathode follower driving treble, middle and bass, a master volume and a long-tail inverter with presence. Two fixed-bias EL34s with bias test points, a half-power switch, an effects loop and an impedance selector complete it.

• Made in: Malaysia
• Wattage: 50W
• Channels: 1
• Preamp tubes: 3× ECC83
• Power tubes: 2× EL34

Tags: el34, crunch, boutique, hand-wired, mid-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.