Fender Super / Pro / Bandmaster Reverb 70W Master Volume - Vibrato preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This is the 1976–80 70-watt master-volume version of the silverface Super Reverb, Pro Reverb and Bandmaster Reverb. Normal and Vibrato channels each have Volume, Treble, Bass and Middle with a bright switch. A 12AT7 drives the spring reverb and a 12AX7A runs the optical vibrato; a master volume with a pull boost feeds a 12AT7 phase inverter and two fixed-bias 6L6GCs on a silicon-diode rectifier, with a line/recording output jack.

• Made in: USA
• Wattage: 70W
• Channels: 2
• Preamp tubes: 3× 7025, 1× 12AX7A, 2× 12AT7
• Power tubes: 2× 6L6GC

Tags: american, vintage, silverface, reverb, vibrato, 6l6, high-wattage.

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.