Guild Maverick Bass preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

Guild's Maverick Bass is a tube bass amp from a September 1970 factory drawing. A single channel with two inputs feeds a 12AX7 stage, then bass, treble and volume controls with a tone switch, followed by a 12AX7 gain stage with a second tone switch. A 7247 drives a master volume, gain stage and long-tail inverter into a cathode-biased push-pull pair of 7591A output tubes with feedback from the speaker, on a silicon-diode voltage doubler.

• Made in: USA
• Wattage: 50W
• Channels: 1
• Preamp tubes: 2× 12AX7, 1× 7247
• Power tubes: 2× 7591A

Tags: american, vintage, bass, mid-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.