Orange Tb500 Bass Terror Input preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

Input stage schematic for the Orange TB500 Bass Terror hybrid bass amplifier. The tube input section uses ECC83 triodes for preamp warmth before feeding the solid-state 500W power amp. Note: bass amplifier.

• Years produced: 2009–present
• Made in: UK
• Wattage: 500W
• Channels: 1
• Preamp tubes: 2× ECC83
• Power tubes: Solid state power section

Tags: bass, hybrid, british, sub-circuit.

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.