Soldano Slo100 preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Soldano SLO-100, introduced in 1987, was the first amplifier to demonstrate that extreme preamp gain could be musical — not merely loud and distorted, but harmonically complex, dynamically responsive, and capable of long, singing sustain that tracked every nuance of the player's attack. Mike Soldano's key innovation was five cascading 12AX7 stages with careful attention to coupling capacitors and bias points, producing a gain character that compresses naturally rather than clipping harshly. The Normal channel handles clean to edge-of-breakup with a Crunch switch for bite; the Overdrive channel is the benchmark against which three decades of boutique high-gain amps have been measured. Its influence on the entire high-gain amplifier category — boutique and production alike — is so pervasive it functions as a common ancestor.

Known for: George Lynch, Eddie Van Halen, Warren Haynes, Lou Reed, Mick Mars, Gary Moore, Eric Clapton.

Heard on: Mr. Scary — Dokken (1987); Old Love — Eric Clapton (1989); Mule — Gov't Mule (1995).

Tags: american, high-gain, boutique.

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.