Davoli Organ Bass Ibrid - Channel 1 preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Krundaal (Davoli) Organ Bass of 1966 is a hybrid amp for organ and bass. Two identical 2N2925 transistor input channels each have treble, middle, bass and volume, then feed a valve power section: two ECC82s for gain and phase splitting, driving a push-pull pair of fixed-bias EL34s with negative feedback from the output transformer. The high voltage comes from a silicon doubler, not a rectifier valve.

• Made in: Italy
• Channels: 2
• Preamp tubes: 2× ECC82
• Power tubes: 2× EL34

Tags: italian, vintage, hybrid, bass, el34.

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.