Fender Pro Reverb Ultralinear (1978-1981) - Normal preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This is the late-CBS 70-watt chassis shared by the Pro Reverb, Super Reverb and Bandmaster Reverb of 1978–1981, using two 6L6 tubes on an ultralinear output transformer. It has Normal and Vibrato channels with bright switches, spring reverb, optical vibrato and a master volume with a push-pull boost.

• Years produced: 1978–1981
• Made in: USA
• Wattage: 70W
• Channels: 2
• Preamp tubes: 3× 7025, 1× 12AX7, 2× 12AT7
• Power tubes: 2× 6L6GC

Tags: american, vintage, silverface, clean, reverb, vibrato, 6l6, two-channel.

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.