Rickstone Poweramp C15 preset

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

The Rickstone Poweramp C15 is a 15-watt power amplifier section from this small British 1960s manufacturer, likely using EL84 or EL34 output tubes in a Class A or Class AB configuration. Rickstone produced a range of modular amplifier components for the UK market, with the C-series designating a specific output tube or circuit variant. The 15-watt output made these suitable for smaller venues and practice applications.

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.