Ampeg B-5R - Channel 2 preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg B-5R is a two-channel solid-state bass head from the late 1990s. Each channel has its own gain and Style voicing. Channel 2 adds a boost switch with diode clipping. The preamp also has an octave divider, footswitchable channel select and combine modes, an effects loop with blend, a master and a balanced XLR DI.

• Wattage: 500W
• Channels: 2

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