Transatlantic Bassman preset

Close · 60/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Transatlantic Bassman is a boutique clone or tribute to the legendary Fender 5F6A tweed Bassman circuit, the foundational design that influenced Marshall and countless other amplifiers. Hand-built to capture the original's bold, punchy character and natural saturation, it represents the ongoing appreciation for this historically significant circuit. The tweed Bassman's influence on the entire trajectory of rock guitar tone cannot be overstated.

Tags: american, vintage, crunch.

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.