Fender Bassman AA165 - Bass Instrument preset

Close · 62/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Bassman AA165 is the blackface Bassman head at 50 watts, built on the AB763 circuit family. Running four 6L6 output tubes, it delivers the tight, punchy clean tones of the blackface era in a compact head format.

• Years produced: 1965–1967
• Made in: USA
• Wattage: 50W
• Channels: 2
• Preamp tubes: 3× 12AX7, 1× 12AT7
• Power tubes: 4× 6L6

Tags: american, clean, blackface, vintage.

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.