Harmony H-430 - Channel 1 preset

Close · 78/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

Harmony was a major American musical instrument and amplifier manufacturer based in Chicago, producing affordable instruments for the mass market throughout the 1950s and 1960s. The H-430 was a small tube combo aimed at student guitarists featuring multiple inputs across two channels. These amps are now cherished by collectors for their vintage character and connection to early American rock and roll.

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.