What tubes does the EVH 5150III LBX use?

The EVH 5150III LBX uses 5× 12AX7 preamp tubes and 2× EL84 power tubes.

When was the EVH 5150III LBX produced?

The EVH 5150III LBX was produced 2015–2017.

EVH 5150III LBX preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 5150III LBX is EVH's 15-watt lunchbox head, a small version of the 5150III. Blue and red voices, selectable from the panel or a footswitch, use relays to change how many 12AX7 gain stages are in the path, but they share one gain control, one low, mid and high EQ and one volume. A pair of EL84s with resonance and presence controls, a full or quarter power switch and a series effects loop round it out, rated 15 W into 16 ohms.

Years produced: 2015–2017
Wattage: 15W
Channels: 1
Preamp tubes: 5× 12AX7
Power tubes: 2× EL84

Tags: american, high-gain, metal, el84, 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.