Aguilar DB 751 preset

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

The DB 751 is Aguilar's hybrid bass head: a three-12AX7 tube preamp with Deep and Bright switches and a transformer-coupled DI, driving a high-power MOSFET output stage. It pairs tube warmth with enormous clean headroom.

• Years produced: 2009–present
• Made in: USA
• Wattage: 750W
• Channels: 1
• Preamp tubes: 3× 12AX7

Known for: Thundercat, Blu DeTiger, Zach Cooper.

Tags: american, bass, hybrid, high-wattage.

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.