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

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg G-212, G-410, G-412 and G-60 share one solid-state circuit in different speaker setups: two 16-ohm 12s on the G-212, four 8-ohm speakers on the G-410 and G-412. Two inputs feed an op-amp preamp with volume, bass, mid and treble, a three-way midrange frequency switch and an Ultra Hi switch. Spring reverb with a Dimension control and footswitchable tremolo precede a quasi-complementary transistor power amp, with extension amplifier jacks.

• Made in: USA
• Wattage: 120W
• Channels: 1

Tags: american, solid-state, reverb, tremolo, high-wattage.

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.