Ashton VP100 - Overdrive preset

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

The VP100 is a 100-watt tube guitar amp from Australian brand Ashton. High and low inputs feed 12AX7 stages, with relays switching between a normal channel and an overdrive channel that has two footswitchable gain settings and a JFET boost. Each channel has its own treble, bass and middle, driven from a 12AT7, and an op-amp spring reverb with level, an effects loop and a master follow. A 12AX7 long-tail phase inverter drives four EL34s with a 4/8/16-ohm load selector.

• Wattage: 100W
• Channels: 2
• Preamp tubes: 3× 12AX7, 1× 12AT7
• Power tubes: 4× EL34

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