Hoffman Amps Ac15 preset

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

This entry represents a Vox AC15 schematic redrawn or archived by Doug Hoffman of Hoffman Amplifiers. Hoffman's website became a canonical reference for vintage amp schematics in the DIY community, preserving documents that would otherwise be difficult to find. The underlying design is the classic Vox AC15.

• Made in: USA
• Wattage: 15W
• Channels: 2
• Preamp tubes: 3× ECC83
• Power tubes: 2× EL84

Tags: british, vintage, clean.

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.