Sano 300/500 Preamplifier - CH2 preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

Sano was an American amplifier brand active in the 1950s and 1960s, offering affordable tube amplifiers for students and working musicians. The 300/500 Preamplifier represents a multi-channel preamp stage designed for instrument use. Sano products are occasionally found by vintage amp collectors interested in the diverse American amp market of the early electric guitar era.

• Years produced: 1950s–1960s
• Made in: USA
• Channels: 2

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.