What tubes does the Marshall Slxa 61 02 use?

The Marshall Slxa 61 02 uses 4× ECC83 preamp tubes and 4× EL34 power tubes.

When was the Marshall Slxa 61 02 produced?

The Marshall Slxa 61 02 was produced 1992–1999.

Marshall Slxa 61 02 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The JCM900 SL-X (Super Lead X) was a higher-gain variant of the JCM900, featuring a dedicated extra preamp gain stage for more saturated distortion tones without diode clipping. It was aimed at players who needed heavier sounds while retaining a more tube-like response.

Years produced: 1992–1999
Made in: UK
Wattage: 100W
Channels: 2
Preamp tubes: 4× ECC83
Power tubes: 4× EL34

Tags: british, high-gain, 90s.

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.