Roland Cube 30 - JC Clean preset

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

The Roland Cube 30 is a compact solid-state practice and rehearsal amplifier built around Roland's COSM modeling technology. It offered a wide range of amp models and effects in a lightweight package, becoming a popular choice for students and working guitarists needing portable versatility.

• Years produced: 2004–2012
• Made in: Japan
• Wattage: 30W
• Channels: 1

Tags: solid-state, modern, clean.

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.