Ampeg G-60 / G-212 / G-410 / G-412 - Channel A preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The G-60/G-212/G-410/G-412 Channel A schematic covers the preamp input section shared across Ampeg's 1990s 60-watt guitar combo family. Available in multiple cabinet configurations, Channel A provides clean tone while additional channels add drive. The 6L6 output section delivers warm American character.

• 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, clean, 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.