Vox Night Train NT15H preset

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

The Night Train NT15H is a compact 15-watt all-valve Vox head with a single channel. One input feeds a triode stage and a Treble, Bass and Middle stack with Bright and Thick switches, then a Gain control and two further triode gain stages. A cathodyne phase inverter is followed by a dual-gang Volume that works as a post-inverter master, driving two EL84s with a Pentode/Standby/Triode switch, on a solid-state rectifier, with 8- and 16-ohm outputs.

Tags: british, el84, crunch, low-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.