Pearce BC-1 preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Pearce BC-1 is a solid-state, two-channel rack bass preamp from 1988, built entirely from op-amp gain and EQ stages and prized for clarity and punch in studio and live bass rigs. Each channel has its own Drive with a Boost switch, a sweepable Frequency and Midrange control, Treble, Bass and Volume, and its own effects loop, with footswitch channel selection. A built-in limiter with threshold control and a transformer-balanced 600-ohm output complete it.

• Made in: USA
• Channels: 2

Known for: Billy Sheehan.

Tags: american, bass, solid-state, preamp, two-channel.

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.