Seymour Duncan 100W Convertible - Normal preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Seymour Duncan 100W Convertible owner's manual documents this high-quality American tube head, which featured a clean and overdrive channel with tube rectification options. A boutique-quality amp from the 1980s at an era when Seymour Duncan briefly but successfully entered the amplifier market.

• Years produced: 1984–1991
• Made in: USA
• Wattage: 100W
• Channels: 2
• Preamp tubes: 4× 12AX7
• Power tubes: 4× 6L6

Tags: american, modern, clean.

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.