Multivox Bassamp 1975 preset

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

The Multivox bass amplifier (c. 1975) is a solid-state unit sold under the Multivox brand, which was a US importer that rebranded Japanese-manufactured instruments and amplifiers for the American market. The circuit reflects late-1960s/early-1970s Japanese amp engineering with a clean, punchy low-mid character typical of solid-state bass amps of the era. Multivox equipment was budget-priced and targeted beginner and working-musician markets.

• Years produced: 1975
• Made in: Japan

Tags: british.

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.