Ampeg SS-150 - Main preset

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

The SS-150 is a solid-state guitar head from Ampeg's late 1980s SS series, delivering 150 watts of reliable amplification. The Main channel provides clean headroom with good note definition. The SS series was designed to offer working guitarists a dependable solid-state alternative during the early 1990s before tube amps regained dominance.

• Years produced: 1988–1993
• Made in: USA
• Wattage: 150W
• Channels: 2

Tags: guitar, american, modern, mid-wattage, solid-state.

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.