Marshall Master Lead 30 2199 - Normal preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 2199 Master Lead is a 30-watt all-transistor combo from Marshall's JMP era, with a master volume after its preamp. Normal and Bright inputs each feed their own two-transistor preamp with a separate gain control, with a Mix input for both. A shared treble, middle and bass stack, an FET buffer and the master volume drive a discrete complementary power amp into two speakers.

• Made in: UK
• Wattage: 30W
• Channels: 2

Tags: british, solid-state, mid-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.