Hughes & Kettner Hk 600 preset

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

The Hughes & Kettner 600 is a high-powered solid-state bass amplifier head delivering 600 watts of clean headroom. Designed for professional bass players, it offers a wide-ranging EQ and robust construction suited for large venues. Its neutral, transparent character makes it a flexible workhorse for studio and live use.

• Years produced: 1990s
• Made in: Germany
• Wattage: 600W
• Channels: 1

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.