Ampeg AX-44C - Channel B preset

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

The Ampeg AX-44C is a 1990 guitar combo, solid-state apart from one 12AX7 in the overdrive path. Two inputs feed an op-amp stage. Channel A has its own Gain, Ultra Mid with a pull Shift switch, and Volume; Channel B has Gain B into the 12AX7, its own High, Mid and Low with a pull Bright switch, and Volume B. Both share a spring reverb, an insert jack and a bucket-brigade chorus, with footswitching for channel, reverb and chorus.

• Made in: USA
• Wattage: 44W
• Channels: 2
• Preamp tubes: 1× 12AX7

Tags: american, solid-state, two-channel, reverb, mid-wattage.

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.