Fender Pro Reverb AA270 - Vibrato preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fender Pro Amp AA270 is an early silverface transitional model retaining the core blackface 40W single-15" Pro Amp circuit with the AA270 revision. It features spring reverb and vibrato and is tonally very close to the blackface Pro Amp family.

• Years produced: 1968–1969
• Made in: USA
• Wattage: 40W
• Channels: 2
• Preamp tubes: 4× 12AX7, 1× 12AT7
• Power tubes: 2× 6L6

Tags: american, clean, vintage.

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.