Hartke HA-5500 - Normal preset

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

The Hartke HA-5500 is a hybrid bass amplifier head combining a tube preamp stage with a solid-state power section, delivering 500 watts into 4 ohms. Hartke pioneered the aluminum-cone speaker design and built a reputation for modern, punchy bass tone with exceptional clarity. The HA-5500 was a workhorse head used by professional bassists seeking the warmth of tubes with the reliability of solid-state power.

Known for: Fieldy.

Tags: american, modern, bass.

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.