Ceriatone TW Expression preset

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

The TW Expression is Ceriatone's version of Ken Fischer's Trainwreck Express, a single-channel amp with no master volume. Three ECC83s run two cascaded gain stages after a volume with a three-way bright switch, into treble, middle and bass, then a long-tail phase inverter with presence in the feedback loop. Two power valves (6V6 or EL34) with an adjustable bias run from a solid-state supply. Its overdrive cleans up from the guitar's volume knob.

• Made in: Malaysia
• Wattage: 50W
• Channels: 1
• Preamp tubes: 3× ECC83
• Power tubes: 2× EL34

Tags: boutique, crunch, breakup.

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.