Marshall 25Aniv Silverjubilee 25 50W 2554 preset

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

The Marshall Silver Jubilee 2554 is the 50-watt 1×12 combo version of the celebrated 25th anniversary Silver Jubilee series, sharing the same acclaimed circuit topology as the 2550 head. The combo format with a single 12-inch speaker produces a particularly focused and immediate version of the Jubilee tone — the reduced wattage causes the EL34s to run at a higher percentage of their operating envelope, adding natural warmth and compression. Like all Jubilee models, the 2554 features the signature diode-clipped second channel and switchable half-power mode.

• Years produced: 1987–1989
• Made in: UK
• Wattage: 50W
• Channels: 2
• Preamp tubes: 3× ECC83 (12AX7)
• Power tubes: 2× EL34

Known for: Slash.

Tags: british, crunch.

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.