Radford Sc22 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Radford SC22 is a stereo control amplifier (preamplifier) from Arthur Radford of Bristol, designed for use with the STA series power amplifiers in a high-fidelity stereo system. Radford produced a complete range of preamplifier and power amplifier combinations to exacting engineering standards. The SC22 is prized by vintage hi-fi enthusiasts for its transparent, musical performance.

Tags: british, 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.