Dynaco PA5-3X - Right preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Dynaco PA5-3X is a tube preamplifier or amplifier variant from Dynaco of Philadelphia, part of the company's line of kit-built and factory hi-fi components. Dynaco produced a variety of preamplifier configurations for different system applications throughout the 1960s. Specific details for the PA5-3X variant are limited but it follows Dynaco's tradition of quality tube circuit design.

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.