Ceriatone Plexi 51 All Access - Normal preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Plexi 51 All Access is Ceriatone's 50-watt Marshall Plexi-style head with switches that recreate different late-'60s and early-'70s Plexi variations. It adds a GZ34/solid-state rectifier switch, presence-cap and bright switches, a tone-stack bypass boost, and a post-phase-inverter master volume, so one amp covers several classic Plexi voicings.

• Made in: Malaysia
• Wattage: 50W
• Channels: 2
• Preamp tubes: 3× ECC83
• Power tubes: 2× EL34

Tags: british, plexi, el34, mid-wattage, boutique, crunch, two-channel.

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.