Bogner Uberschall preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Bogner Uberschall is a 120-watt two-channel extreme-gain boutique head. Designed for players who need maximum gain with the clarity and harmonic richness of a boutique instrument.

• Years produced: 2001–present
• Made in: USA
• Wattage: 120W
• Channels: 2
• Preamp tubes: 6× ECC83
• Power tubes: 4× EL34

Known for: Buckethead, Tim Henson.

Tags: american, boutique, high-gain, el34, metal.

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.