Davoli Organ Bass - Bass preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Davoli (Krundaal) Organ Bass of 1965 is an all-valve amp with separate Organ and Bass channels, each on its own ECC83 with treble, middle, bass and volume controls plus a tone preset, mixed by a third ECC83. An ECC82 drives a push-pull pair of EL34s into a multi-tap output transformer, with a silicon-diode supply and fixed bias. It was built to handle the low end of both instruments in 1960s bands.

• Made in: Italy
• Channels: 2
• Preamp tubes: 3× ECC83, 1× ECC82
• Power tubes: 2× EL34

Tags: italian, vintage, bass, el34.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.