Ampeg VL501/1001 Preamp - Channel 2 preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg VL-501 preamplifier section covered a single-channel high-gain guitar preamp using 12AX7 tubes, designed as a lower-wattage companion to the VL-1002 in Ampeg's early 1990s VL guitar amplifier series. The VL-501 preamp offered similar high-gain voicing to the VL-1002 in a 50-watt package, allowing guitarists who didn't need the full 100 watts to access the same British-inflected, EL34-driven tone signature. The preamp circuit shares considerable topology with the larger VL-1002 design.

Tags: american.

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.