Fender Bassman 59 Rev E preset

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

The Bassman 59 Rev E represents a further documented revision of the 5F6-A Bassman circuit. The core design — four 6L6 output tubes, 4×10 open-back cabinet — remains consistent, with Rev E reflecting specific component value changes documented in Fender service literature.

Tags: american, tweed, vintage, breakup, influential.

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.