What tubes does the Vox Defiant Power Stage - Main use?

The Vox Defiant Power Stage - Main uses 2× ECC83 preamp tubes and 4× KT88 power tubes.

When was the Vox Defiant Power Stage - Main produced?

The Vox Defiant Power Stage - Main was produced 1965–1968.

Vox Defiant Power Stage - Main preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Defiant Power Stage is the high-powered tube power amplifier section of the Vox Defiant, one of the largest Vox amplifiers of the mid-1960s. Using KT88 tubes, it delivered 100 watts for the biggest stages of the era.

Years produced: 1965–1968
Made in: UK
Wattage: 100W
Channels: 1
Preamp tubes: 2× ECC83
Power tubes: 4× KT88

Tags: british, kt88, vintage, power-amp, high-headroom.

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.