Peavey Rockmaster 91 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Peavey Rockmaster (1991 revision) is a high-gain tube preamp rack unit that delivers multi-channel lead and rhythm tones tailored for 1980s and 1990s hard rock and metal playing styles. Its 12AX7-loaded preamp circuit produces a tight, aggressive gain character with the EQ flexibility expected by studio and touring metal guitarists of the era. The Rockmaster was widely used in the 1990s shred and alternative scene as a front end for high-powered solid-state power amplifiers.

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.