Ampeg BA112a Bass Amplifier - Main preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The BA112a is a solid-state bass combo with a 12-inch speaker delivering 75 watts. The Main channel provides clean, reliable bass amplification suitable for rehearsal, small venues, and recording. The 12-inch speaker offers a fuller, more articulate response than the smaller BA110a.

• Years produced: 2000s–present
• Made in: USA
• Wattage: 75W
• Channels: 1

Tags: bass, american, modern, low-wattage, solid-state.

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.