Westbury 555 Bass preset

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

The Westbury 555 Bass is the top-of-the-line bass amplifier in the Westbury range, offering the highest power and most complete feature set available from the brand. It includes an enhanced EQ section and a compressor circuit, making it a more professional-grade option compared to the smaller Westbury bass models. The 555 was aimed at semi-professional bass players who needed reliable, feature-rich amplification without the expense of an American brand.

• Years produced: 1980–1986
• Made in: Japan
• Channels: 1

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.