Ampeg BA-115SP preset

Verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg BA-115SP is an early-2000s solid-state bass combo with a 15-inch speaker. 0 dB and -15 dB inputs feed a TL072 op-amp stage and Volume, then a multi-position Style switch and Low, Mid and High controls. A built-in DSP effects section has an Effect Select switch, parameter and level controls, and there is a CD input with its own level, a balanced XLR line out and a VTL5C7 optical limiter ahead of a complementary MOSFET output stage.

• Years produced: 2001–2003
• Wattage: 100W
• Channels: 1

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

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.