Markbass Little Mark III preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Little Mark III is Markbass's compact, lightweight solid-state bass head, rated around 500 watts. A clean, punchy preamp with a Vintage Loudspeaker Emulator and a Variable Pre-shape Filter drives a MOSFET power stage, and it became one of the most common heads on stages and in gig bags.

Tags: italian, bass, solid-state, high-wattage.

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.