What tubes does the Davoli Professional - Bass use?

The Davoli Professional - Bass uses 3× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Davoli Professional - Bass produced?

The Davoli Professional - Bass was produced 1968–1976.

Davoli Professional - Bass preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Davoli Professional is a guitar-focused EL34 amplifier from the company's professional tier, offering a step up in build quality and tonal refinement over the budget models. Its EL34 output section delivers more body and sustain than the EL504-equipped variants, while retaining the unmistakable Davoli brightness.

Years produced: 1968–1976
Made in: Italy
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 2× EL34

Tags: vintage, crunch.

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.