EVH 5150III LBXII - Lead preset

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

The 5150III LBXII is the second version of EVH's 15-watt lunchbox head, introduced in January 2017. It has two channels, green and blue, each with its own gain and volume on dual-concentric knobs, sharing one low, mid and high EQ, switched by relays from the panel or a footswitch. A pair of EL84s with resonance and presence controls and a full or quarter power switch give 15 W into 16 ohms.

Tags: american, high-gain, metal, el84, two-channel, low-wattage, modern.

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.