Ceriatone JCM101 All Access - JCM800 preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The JCM101 All Access is a 100-watt Ceriatone head combining a JCM800-style channel and a Plexi channel, footswitchable by relay. Three ECC83s drive four EL34s, with a buffered effects loop, post-phase-inverter master, an extra gain switch, negative-feedback and bright options, and V2A bypass choices, covering 1960s Marshall crunch through 1980s hard-rock gain.

• Made in: Malaysia
• Wattage: 100W
• Channels: 2
• Preamp tubes: 3× ECC83
• Power tubes: 4× EL34

Tags: el34, plexi, crunch, high-gain, two-channel, boutique, 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.