Carvin X-100B - Lead preset

Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The X-100B is Carvin's 1990 100-watt two-channel X-series tube head, also offered as the XV-112 and XV-212 combos. Three 12AX7s give a Rhythm channel with its own volume and bright switch and a Lead channel with lead drive, a hi-lead switch and master. Shared bass, mid, treble and presence, a solid-state reverb with footswitch, an effects loop with level and an EQ-assign output follow, driving four EL34s with an output power switch.

• Years produced: 1982–1994
• Made in: USA
• Wattage: 100W
• Channels: 2
• Preamp tubes: 3× 12AX7
• Power tubes: 4× EL34

Known for: Steve Vai, Frank Zappa, Craig Chaquico.

Heard on: The Attitude Song — Steve Vai (1984).

Tags: american, vintage, 6l6, two-channel, high-wattage.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.