Marshall Mosfet 100 Reverb Twin 5213 - Overdrive preset

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

The 5213 Mosfet 100 Reverb Twin is a 100-watt solid-state 2x12 combo from 1986. Channel A has footswitchable Normal and Boost amplifiers with LED clipping, its own EQ, spring reverb and an effects loop; Channel B is a separate clean channel with -6 dB and 0 dB inputs and its own Volume, Treble, Middle and Bass. Op-amp preamps drive a 2SK134/2SJ49 MOSFET output stage, with headphone and direct outputs.

• Made in: UK
• Wattage: 100W
• Channels: 2

Tags: british, solid-state, reverb, high-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.