Ampeg Reverb Rocket Model R-12-R-B - Normal preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg Reverb Rocket R-12RB was an updated variant of the Reverb Rocket combo, incorporating circuit revisions that improved the reverb integration and overall tonal response. Like its siblings in the Rocket line, it used a pair of 6V6GT output tubes for approximately 18 watts through a single 12-inch speaker. The R-12RB was part of Ampeg's mid-1960s effort to refine its guitar amplifier lineup as competition from Fender and Gibson intensified.

Tags: american.

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.