Watkins Westminster (1958) preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Watkins Westminster 1958 is the original version of the Westminster model, one of the earliest Watkins-branded combo amplifiers available to British guitarists. Built in the year rock and roll was taking hold in Britain, it represents a formative moment in UK amplifier manufacturing. Its simple circuit is clean-biased for maximum headroom relative to its modest power output.

Tags: british.

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.