Valco Supro 1600B preset

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

The Supro 1600B was a variant of the 1600-series Supro platform, likely incorporating circuit revisions or cosmetic updates to the standard 1600 model. Like its siblings, it benefited from Valco's efficient manufacturing approach and produced the musical, responsive tone that made Supro amps famous among blues and early rock guitarists. The 1600B represents the continued refinement of one of Valco's most successful designs.

• Years produced: 1962–1968
• Made in: USA
• Channels: 2
• Preamp tubes: 2× 12AX7
• Power tubes: 2× 6L6

Known for: Jimmy Page.

Tags: american.

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.