Ashton VP50 - Normal preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The VP50 is the 50-watt sibling of Ashton's VP100, drawn in 2003 on the same preamp. Relays switch between a normal channel and an overdrive channel with two footswitchable gain settings and a JFET boost, and each channel has its own treble, bass and middle, driven from a 12AT7. Op-amp spring reverb with level, an effects loop and master follow, and a 12AX7 phase inverter drives a push-pull pair of EL34s on a solid-state rectifier into its speaker.

• Wattage: 50W
• Channels: 2
• Preamp tubes: 3× 12AX7, 1× 12AT7
• Power tubes: 2× EL34

Tags: australian, el34, two-channel, reverb, mid-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.