Marshall 1959SLP Reissue - High Treble preset

Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 1959SLP is Marshall's production reissue of the 100-watt plexi Super Lead. It keeps the four-input, two-channel preamp with no master volume, three ECC83s and four EL34s, but is built on a circuit board rather than hand-wired; the hand-wired version is the separate 1959HW. Later units add a series effects loop. It gives the original's crunch without the cost of a vintage amp.

• Made in: UK
• Wattage: 100W
• Channels: 2
• Preamp tubes: 3× ECC83
• Power tubes: 4× EL34

Known for: Luke Bentham.

Tags: british, reissue, plexi, crunch, el34, 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.