Multivox Guitar Amp Wtrem 7591 Circa 1967 preset

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

This circa-1967 Multivox guitar amp with tremolo uses a pair of 7591 tubes for its push-pull output stage, delivering classic mid-1960s American combo tone with onboard tremolo effect. Multivox, the New York parent company behind the Premier brand, produced a range of student and semi-professional amplifiers throughout the 1960s. The 7591-based designs are prized for their warm, compressed character and period-correct spring tremolo.

Tags: american, vintage.

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.