Morley BPA-25/50 preset

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

The BPA-25/50 is a small solid-state power amplifier from Morley, the American pedal maker. A TL074 op-amp preamp with treble, bass, volume and boost switches drives a discrete push-pull transistor output stage, and there is a line out.

• Made in: USA
• Wattage: 25W
• Channels: 1

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

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.