Laney Supergroup 100 MkI preset

Close · 66/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Laney Supergroup 100 is Laney's early 100-watt all-tube head, with two channels, ECC83 preamp tubes and four EL34s. It is best known as Tony Iommi's amp on the early Black Sabbath records, where its raw, thick overdrive helped define the sound of heavy metal.

• Made in: UK
• Wattage: 100W
• Channels: 1
• Preamp tubes: ECC83
• Power tubes: 4× EL34

Known for: Tony Iommi.

Heard on: Paranoid — Black Sabbath (1970).

Tags: british, vintage, el34, high-wattage, crunch.

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.