Alesis MicroVerb 4 (C4) - Main preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Alesis MicroVerb 4 is a compact digital reverb effects unit from Alesis, the Los Angeles-based company that revolutionized affordable digital effects with the original MicroVerb in 1987. The fourth generation of this budget digital reverb unit offered 16 reverb programs in a half-rack enclosure. Its ease of use and low cost made it a staple of home studios and live sound rigs throughout the 1990s.

• Years produced: 1993–2000
• Made in: USA

Tags: american, modern, 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.