Unknown 20Th Imperial Sc200Hb Pg1 preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

This schematic represents a 200-watt amplifier of uncertain origin, designated the Imperial SC200HB. Based on the wattage and model designation, this appears to be a professional-grade amplifier head likely from the 1970s or 1980s. Without clear manufacturer attribution, full specifications remain uncertain, but the schematic documents its circuit for research and restoration purposes.

• Wattage: 200W

Tags: 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.