Gibson BR-6 preset

verified · 89/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The BR-6 is a simple single-channel Gibson amplifier with a single volume control and no tone controls. A 6SL7 and 6SN7 drive a push-pull pair of 6V6 output tubes on a 5Y3 rectifier.

• Made in: USA
• Wattage: 15W
• Channels: 1
• Preamp tubes: 1× 6SL7, 1× 6SN7
• Power tubes: 2× 6V6

Tags: american, vintage, clean, 6v6.

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.