Fonica W-701 - Channel I preset

Close · 70/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Fonica W-701 is a 1965 tube guitar amplifier from an obscure European manufacturer active during the beat era. It featured multiple channels serving normal and tremolo inputs typical of the period. These Eastern European-influenced amps occupy an interesting niche in vintage amp collecting.

• Years produced: 1965
• Channels: 2

Tags: 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.