Vox V125 Bass preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The V125 Bass is the bass counterpart to Vox's 125-watt V125 Lead of the 1980s. Its drawing shows a valve front end: Bright and Normal inputs drive the two halves of an ECC83 in a cathode-coupled pair, with a Sensitivity control in the shared cathode, then a Volume control feeding a second valve stage. A five-band equaliser follows, with bands at 50 Hz, 100 Hz, 250 Hz, 500 Hz and 1.6 kHz. The rest of the circuit is not shown.

Tags: british, bass, high-wattage.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.