Laney Tubefusion 300 preset

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

The Laney TubeFusion 300 is the mid-tier model in the hybrid TubeFusion line, delivering 300 watts of solid-state output driven by a tube-based preamp. It was targeted at bass and keyboard players requiring maximum headroom and consistent high-power output with some tube-derived tonal warmth. The TubeFusion 300 represents a pragmatic engineering approach to high-power amplification.

Tags: british.

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.