AxeFx

Axe-Fx is a line of digital guitar amplifier modeling and effects processors developed by Fractal Audio Systems. The devices provide programmable signal chains that emulate guitar amplifiers, speaker cabinets, microphones, and effects, with extensive routing options for studio and live use.

The original Axe-Fx was released in 2006 as an early high-end digital modeler. It was followed by the Axe-Fx II in 2011, which offered increased processing power and expanded effects blocks for more realistic tones. In 2019–2020, Fractal released the Axe-Fx III, the third generation, with further CPU headroom, improved user interface, and enhanced integration with Fractal’s ecosystem. The line is produced by Fractal Audio Systems, a California-based company.

Axe-Fx devices use a digital signal processing engine to model amplifiers, cabinets with impulse responses, microphone placements, and a wide array of effects, arranged in a flexible, block-based signal chain. They support multiple amp blocks, stereo processing, built-in effects, cabinet IR loading, and direct recording via USB on newer models. They offer extensive preset libraries, MIDI and foot-controller compatibility, and deep tone-shaping controls for both studio and live applications.

The Axe-Fx line is widely used by professional guitarists and studios for its tonal versatility and realism, though it is noted for a steep learning curve and a high price. It has influenced the perception of high-end digital modelers and remains a reference point in the field.