FBT 500 R2 - Channel 1 preset

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

The FBT 500 R2 is a 500-watt solid-state multi-channel instrument amplifier from this Italian professional audio manufacturer. It represents FBT's high-output offering for large-venue performance, applying the company's professional PA engineering expertise to instrument amplification.

• Years produced: 1980s
• Made in: Italy
• Wattage: 500W
• Channels: 2

Tags: modern, solid-state, clean.

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.