Sano 20WR / 25WR - Channel 2 preset

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

Sano’s 20WR and 25WR share one schematic. Two channels each have a 12AX7 triode and their own volume, mixed into a third triode with bass and treble controls. A 7199 drives the spring reverb, with a 12AX7 recovery stage, reverb volume and footswitch, and the other 12AX7 triode is a tremolo with speed and footswitch. A 12AU7 phase inverter drives a cathode-biased push-pull pair of 7591s into a 4 ohm output, with a 5Y3GT rectifier.

• Made in: USA
• Channels: 2
• Preamp tubes: 3× 12AX7, 1× 7199, 1× 12AU7
• Power tubes: 2× 7591

Tags: american, vintage, clean, two-channel.

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.