Ceriatone Hey JP 100 preset

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

The Hey What?! JP100 is a 100-watt Ceriatone head in the Hiwatt style. Hi and Lo inputs feed a single input volume and a balance control that blends two preamp paths, selected by a voicing switch, into bass, treble and middle, presence and master. Two ECC83s, an ECC83 driver and a 12AT7 phase inverter drive four EL34s on a solid-state rectifier with an adjustable bias, for loud, clean, articulate Hiwatt-style tone.

• Made in: Malaysia
• Wattage: 100W
• Channels: 1
• Preamp tubes: 3× ECC83, 1× 12AT7
• Power tubes: 4× EL34

Tags: boutique, hand-wired, high-wattage.

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.