What tubes does the Ampeg V2Prea use?

The Ampeg V2Prea uses 4× 12AX7 preamp tubes.

When was the Ampeg V2Prea produced?

The Ampeg V2Prea was produced 1971–1979.

Ampeg V2Prea preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The V-2 Preamp A document is an alternative schematic representation of the V-2's input and tone-shaping section. This variant may represent a different production revision or an alternate documentation format from Ampeg's service files. Used in conjunction with other V-2 schematics for comprehensive circuit understanding.

Years produced: 1971–1979
Made in: USA
Channels: 2
Preamp tubes: 4× 12AX7

Tags: guitar, american, vintage, 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.