Fractal Audio Axe-Fx II Amplifier Quick Reference Guide

The Axe-Fx II is a digital guitar amplifier and effects processor. This guide provides a quick reference for using the amp and cab blocks in Axe-Edit. It includes descriptions of the parameters, amp and cab models, and speaker types.

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Fractal Audio Axe-Fx II Quick Reference Guide | Manualzz

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Key features

  • Amp & Cab blocks
  • Amp and cab descriptions
  • Amp speaker types matched with Axe-Fx cabs
  • Drive block descriptions
  • Amp and cab block diagrams

Frequently asked questions

These controls affect the gain and tonal character of the amplifier. Input Drive has a bright cap which affects the frequency response based on knob position, while Overdrive only affects gain.

Input Trim controls the preamp gain for a specific amp block, while Global Amp Gain affects all amps and presets.

Presence reduces high frequency negative feedback in the power amp, helping the sound cut through a mix. Depth boosts low frequencies by varying the negative feedback frequency response.

XFormer Match changes the output transformer's turns ratio, affecting how easily power tubes are driven into clipping. Higher values lead to more compressed tones, while lower values result in a more open sound.

Supply Sag models the power supply impedance, affecting the tube plate voltage and giving a more compressed or looser feel. B+ Time Constant controls the rate of change in the plate supply, influencing the amp's response.
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