Ampeg Reverberocket R-12-R-M preset

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

The Reverberocket R-12-R-M is a version of Ampeg's early-1960s reverb combo, with three 12AX7s, a 12AU7 and a push-pull pair of 7591 output tubes. Along with spring reverb ('echo') and tremolo it has an Echo Dimension control, and the M suffix marks a revised module. The 7591s give a tight, full clean tone with plenty of headroom, which made the Reverberocket a favourite for surf and jazz-leaning players.

• Made in: USA
• Wattage: 18W
• Channels: 1
• Preamp tubes: 3× 12AX7, 1× 12AU7
• Power tubes: 2× 7591

Tags: american, vintage, reverb, tremolo, clean, low-wattage.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.