What tubes does the Bogner Fish - Brown use?

The Bogner Fish - Brown uses 11× 12AX7 preamp tubes.

Who famously used the Bogner Fish - Brown?

Jerry Cantrell are among the notable players associated with the Bogner Fish - Brown.

What recordings feature the Bogner Fish - Brown?

Them Bones by Alice In Chains (1992).

Bogner Fish - Brown preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fish is Bogner's all-tube rack preamp from the company's early years. Four selectable channels each have their own volume: Country, a clean voice with bass, mid, treble and Funk and Jazz switches; Strato and Brown, which share a treble, bass and mid stack; and Shark, with its own treble, bass, Bright, Dark and Balls switches. Presence and master are global. Jerry Cantrell used one for the low end of his rhythm sound on Alice in Chains' Dirt.

Made in: USA
Channels: 4
Preamp tubes: 11× 12AX7

Known for: Jerry Cantrell.

Heard on: Them Bones — Alice In Chains (1992).

Tags: american, boutique, preamp, multi-channel.

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.