Marshall Masterlead 30W 5010 preset

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

The Marshall Masterlead 30 (model 5010) is a compact 30W single-channel head from the early JCM800 era, offering master volume control in a smaller, more portable package than the full 50W and 100W heads. Its EL34-based output stage and master volume circuit closely follow the JCM800 topology, delivering the same brand of articulate British crunch but with a slightly looser feel from the smaller power transformer. The 5010 was aimed at gigging players who valued portability and found 50W heads more than adequate for most venues, and it has become appreciated by players who prefer a more intimate, responsive dynamic.

Tags: british, crunch, high-gain.

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.