Vox VBM1 Brian May Special preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The VBM1 Brian May Special is a small solid-state Vox recording and practice amp made with Brian May. The input first passes a single-transistor treble booster with its own Booster output jack and switch, then a Drive control, transistor gain stages with diode clipping and a High/Low Gain switch, and op-amp stages. One Tone control, a filtered recording/headphone out and a Volume feed an LM1875 power IC into an 8-ohm speaker.

• Channels: 1

Known for: Brian May.

Tags: british, solid-state, practice.

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.