What tubes does the Marshall JCM800 Super Lead 1959 - High Treble use?

The Marshall JCM800 Super Lead 1959 - High Treble uses 3× ECC83 preamp tubes and 4× EL34 power tubes.

When was the Marshall JCM800 Super Lead 1959 - High Treble produced?

The Marshall JCM800 Super Lead 1959 - High Treble was produced 1981–1990.

Marshall JCM800 Super Lead 1959 - High Treble preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The JCM800-era 1959 Super Lead is the 100-watt non-master-volume head, continuing the plexi four-input, two-channel layout in JCM800 cosmetics. Inputs I and II each have their own volume and mix into a second ECC83 gain stage and cathode follower driving Treble, Middle and Bass. A long-tail ECC83 inverter with Presence drives four EL34s off a choke-filtered silicon supply, with a DI output, so its crunch comes from sheer volume.

Years produced: 1981–1990
Made in: UK
Wattage: 100W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 4× EL34

Tags: british, crunch, plexi, 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.