Nobels BC-30 preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The BC-30 is a compact solid-state bass combo from Nobels. It has hi/lo inputs, volume, treble, mid, bass, presence and master controls, plus a line out, driving a discrete push-pull transistor power amp rated around 30 W. It is a straightforward practice and small-rehearsal bass amp.

• Wattage: 30W
• Channels: 1

Tags: german, solid-state, bass, practice.

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.