Hartke LH1000 preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

A hybrid bass head from Hartke's LH series. It has passive and active inputs, a single 12AX7 tube preamp stage, bass, mid and treble controls and a limiter, feeding solid-state power amps rated at 2×500 watts that can be bridged to 1000 watts.

• Wattage: 1000W
• Channels: 1
• Preamp tubes: 1× 12AX7

Tags: american, hybrid, bass, modern, high-wattage.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.