American Classics Champ Ultra preset

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

The American Classics Champ Ultra is a boutique enhancement of the classic Fender Champ circuit, offering additional features and refinements over the original single-ended design. Based on one of the most recorded amplifiers in history, it delivers sweet, harmonically rich tone at bedroom levels. The Champ circuit is celebrated for its simplicity and exceptional recording character.

Tags: american, vintage, 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.