Sunn Sentura I preset

Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Sunn Sentura I has Normal and Bright inputs with volume, bass, treble, contour (mid boost) and depth, 12AU7-driven spring reverb with transistor recovery and photocell tremolo. A 6AN8 driver/inverter drives two 6550s from a GZ34 rectifier.

• Made in: USA
• Wattage: 60W
• Channels: 1
• Preamp tubes: 1× 12AX7, 1× 12AU7, 1× 6AN8
• Power tubes: 2× 6550

Tags: american, vintage, 6550, reverb, tremolo.

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.