Hughes & Kettner Hk Crunchmachine preset

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

The Hughes & Kettner Crunch Machine is a single-channel all-tube head optimized for aggressive crunch tones at lower gain settings. Its EL84-powered output stage gives it a distinctive chime-with-grind character reminiscent of British combo amps. A simple control set — volume, bass, middle, treble, and gain — keeps the focus on expressive playing dynamics.

Tags: crunch.

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.