Randall RGT100 - Clean preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Randall RGT100 is a late-1980s 100-watt, two-channel all-tube head. High and low inputs feed relay-switched channels, each with its own Gain and Master: a clean side and an overdrive side with an extra 12AX7 stage and a pull Sustain switch. Both share Treble, Bass and Mid controls with a pull Mid Boost, plus Presence, op-amp-driven spring reverb and an effects loop, and a 12AT7 phase inverter drives four 6L6s.

Tags: american, clean, high-gain, reverb, 6l6, high-wattage, two-channel.

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.