Behringer BT108 Ultrabass - Main preset

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

The Behringer BT108 Ultrabass is a compact solid-state bass practice amplifier designed for home use and beginner bass players. It offers basic tone shaping and reliable performance at an entry-level price point.

• Years produced: 2000s
• Made in: Germany

Tags: german, modern, solid-state, bass.

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.