Airline GVC-9058A - Channel 1 preset

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

The Airline GVC-9058A is a two-channel tube combo from Airline's mid-to-late 1960s catalog, featuring tremolo alongside the characterful Valco-built tube circuit. As a GVC-series model, it occupied the mid-tier of Airline's guitar combo lineup, offering useful features at a department-store price point. The 9058A model is sought after by players and collectors drawn to the raw, expressive tone of Valco-constructed American budget amplifiers.

Tags: american, 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.