Vox Q-Series Keyboard Preamp preset

Close · 66/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Vox Q-Series Keyboard Preamp is a solid-state keyboard preamp with three identical op-amp channels, each with gain, EQ and volume controls. The channels share the spring reverb and effects loop. It was built to feed a separate power amp.

• Made in: UK
• Channels: 1

Tags: british, solid-state, preamp, reverb.

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.