Gibson EH-160 - Channel 1 preset

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

The EH-160 is a pre-war Gibson amp with an AC/DC supply and a field-coil speaker. Two inputs each feed their own 6C5 triode and 500K volume control, mixing into a 6C5 driver with a switched tone capacitor. The driver feeds an interstage transformer that splits the phase for four 25B6 power pentodes in parallel push-pull, biased from a C battery. Four 25Z5 rectifiers and a series heater string let it run without a power transformer.

Tags: american, vintage, clean, two-channel.

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.