Vox Valvetronix VT80+ preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The VT80+ is a model in Vox's Valvetronix+ series of modeling amps. An input buffer and AK5358 converter feed a DSP modeling engine for amps and effects, returning through an AK4384 converter and a Master control. A 12AX7 Valve Reactor stage with speaker-current feedback then drives a TAS5615 Class D power amp, set by a Power Level control, into a 12-inch speaker. Aux in, phones out and a VFS5 footswitch input are provided.

• Introduced: 2010
• Wattage: 60W
• Channels: 1
• Preamp tubes: 1× 12AX7

Tags: hybrid, 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.