Fender 5F1 Champ - Main preset

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

The Champ 5F1 is the definitive tweed Champ — a 5-watt, single-ended, Class A combo with one 12AX7 preamp tube and one 6V6 power tube driving an 8-inch speaker. Deceptively simple, it produces rich, harmonically complex tones that break up beautifully at recording volumes, making it one of the most recorded amps in studio history.

• Years produced: 1957–1964
• Made in: USA
• Wattage: 5W
• Channels: 1
• Preamp tubes: 1× 12AX7
• Power tubes: 1× 6V6

Known for: Eric Clapton, Eric Johnson, Robert Cray.

Tags: american, tweed, vintage, breakup, recording.

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.