Behringer BVT4500H Ultrabass preset

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

The BVT4500H Ultrabass is a 450-watt solid-state bass head. Its op-amp preamp has gain, a 3-band EQ, a 9-band graphic EQ and a limiter. It is a budget high-power head for bassists who need volume and broad tone-shaping at a low cost.

• Wattage: 450W
• Channels: 1

Tags: solid-state, bass, high-wattage, modern.

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.