Earth Sound Research G-2000 Super Guitar - Normal preset

Verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The G-2000 Super Guitar is an all-valve guitar head from Earth Sound Research (ISC Audio, New York). Normal and Vibrato channels each have two inputs, treble, bass, middle, volume and a bright switch on 7025 stages. The Vibrato channel adds a 12AT7-driven spring reverb and a valve tremolo with speed, intensity and pedal jacks. A 12AT7 long-tailed-pair inverter drives four fixed-bias 6L6s with a transistor-buffered slave output.

• Made in: USA
• Channels: 2
• Preamp tubes: 4× 7025, 2× 12AT7
• Power tubes: 4× 6L6

Tags: american, vintage, 6l6, reverb, tremolo, 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.