Giannina Unknown - Normal preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

Giannina is an obscure guitar amplifier manufacturer with very limited historical documentation. The available schematic represents a simple single-channel tube design typical of small European or South American manufacturers active during the guitar boom of the 1960s. Without further documentation, specific details about this brand and model remain unknown.

• Channels: 1

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.