Gallien-Krueger 800RB preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 800RB is Gallien-Krueger's solid-state bi-amp bass head: an electronic crossover feeds a 300-watt low-frequency amp and a 100-watt high-frequency amp. A four-band EQ and voicing filters give it the punchy, bright, articulate bass tone that made it a rock and funk stage staple.

• Made in: USA
• Wattage: 300W
• Channels: 1

Known for: Duff McKagan, Flea.

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.