What tubes does the Marshall Lead 100 Solid State 2078 use?

The Marshall Lead 100 Solid State 2078 uses Solid-state preamp tubes and Solid-state power tubes.

When was the Marshall Lead 100 Solid State 2078 produced?

The Marshall Lead 100 Solid State 2078 was produced 1984–1991.

Marshall Lead 100 Solid State 2078 preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Marshall Lead 100 Solid State (model 2078) is a fully transistor 100W head from the mid-1980s, developed alongside the JCM800 valve range to serve players who wanted the Marshall name and voicing without valve costs or road fragility. Its two channels cover clean and high-gain territory, and the 100W solid-state output section delivers consistent, reliable power that never drifts with temperature or tube age. While considered less prestigious than its valve counterparts, the 2078 was a practical touring workhorse and its circuit is of interest to engineers studying Marshall's approach to solid-state gain staging.

Years produced: 1984–1991
Made in: UK
Wattage: 100W
Channels: 2
Preamp tubes: Solid-state
Power tubes: Solid-state

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.