Ampeg G-60 (Preamplifier) - Channel B preset

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

The G-60 Preamplifier schematic documents the Channel A input and tone-shaping section of Ampeg's 60-watt guitar combo. The preamp provides two channels with independent EQ, feeding the 6L6 output section. This schematic page complements the Vector Series power amp documentation.

• Years produced: 1993–1998
• Made in: USA
• Wattage: 60W
• Channels: 2
• Preamp tubes: 3× 12AX7
• Power tubes: 2× 6L6

Tags: guitar, american, modern, mid-wattage, drive.

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.