What tubes does the Gibson Br9 use?

The Gibson Br9 uses 2× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Gibson Br9 produced?

The Gibson Br9 was produced 1952–1957.

Gibson Br9 preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Gibson BR-9 is a late-production model of Gibson's BR amplifier line, transitioning to 12AX7 preamp tubes from the earlier pentode designs while retaining 6L6 output tubes for authoritative clean power. Produced in the early-to-mid 1950s, the BR-9 bridges Gibson's postwar Hawaiian amp heritage with the more modern circuitry that would define the GA series. Its tone is clean, warm, and full-bodied — well suited to lap steel, early electric guitar, and pedal steel applications.

Years produced: 1952–1957
Made in: USA
Wattage: 25W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 2× 6L6

Tags: american, vintage, clean.

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.