Univox Lafayette U-80A - Guitar preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Univox Lafayette U-80A is a Japanese-built amplifier sold under both the Univox and Lafayette brand names in the US market during the mid-1960s, reflecting the common practice of OEM badge engineering by Japanese manufacturers. Its EL34-based power section delivers approximately 40 watts with a bold, aggressive mid-range voice reminiscent of early Marshall designs, and the circuit borrows heavily from British amp topology of the period. The amp is more forceful and compressed than Vox-inspired Univox models, with a harder, more saturated clipping character. The shared-model branding between Univox and Lafayette is documented in collector circles and identifies this as a Matsumoku-affiliated product.

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.