Impact Studio preset

verified · 83/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Impact Studio is an English combo, dated August 1968 on its factory drawing. Two channels each have two inputs, an ECC83 gain stage, their own treble, bass and volume, and a second gain stage. ECC83 stages drive and recover a Hammond spring unit with a reverb level, and an ECC83 oscillator runs a light-cell tremolo with speed and depth. An EF86 stage and ECC83 inverter drive two cathode-biased EL84s into four 10-inch speakers.

• Made in: UK
• Channels: 1
• Preamp tubes: 6× ECC83, 1× EF86
• Power tubes: 2× EL84

Tags: british, vintage, reverb.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.