Fender Princeton Reverb II 20W w/Boost Pedal - Rhythm preset

Verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fender Princeton Reverb II is a CBS-era evolution of the classic Princeton Reverb, delivering approximately 20W through two 6V6 tubes with spring reverb and an added boost circuit via an external pedal. A transitional design bringing the Princeton name into the 1980s with added gain and modern features while retaining the small-combo format.

• Years produced: 1982–1985
• Made in: USA
• Wattage: 20W
• Channels: 2
• Preamp tubes: 3× 12AX7
• Power tubes: 2× 6V6

Tags: american, clean, crunch, modern.

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.