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Firmware 12.06 for the Axe-Fx III has been released. This is the release version and not a Public Beta. Click here to visit the forum download link. Below are the release notes with some explanations added.

12.06 contains additional FC features and fixes, as well as improvements to the Noise Gate in Input blocks and general fixes and Drive and Amp type updates.

Click here for the complete list of Release Notes for the Axe-Fx III.

12.06 Release Notes:

Bold items are new compared to Public Beta 3

  • Improved performance of noise gate in Input block. Both the Classic and Intelligent types have been improved. The new Noise Reducer type reduces noise while preserving the attack of the note. It does this by using intelligent filtering to remove line noise and high frequency hiss will leaving the rest of the spectrum intact. Be sure to set the global Line Frequency to a value commensurate with the AC frequency in your country. Note that the Classic and Intelligent types can achieve complete silence while the Noise Reducer type can let some sound through as it is designed to be as transparent and unobtrusive as possible.

The new Noise Reducer type in all Input Blocks

To check your AC Line Frequency, from the Front Panel, tap Home, then tap Knob E for Setup. Nav to Global Settings and tap Enter. Nav to the bottom of the list to find AC Line Frequency. Use the Value wheel to choose between 60 Hz or 50 Hz. From the Owner’s Manual: “i.e., “60 Hz” for USA/Canada/most of South America, or “50 Hz” for Europe/Australia/most of Asia, etc.)”


  • Improved Downward Expander type in the Gate block.

  • Fixed zipper noise when using an FC pedal to control input volume.

Some users were experiencing noise that sounds like a clothes’ zipper when using an expression pedal and an FC controller to control the Input Volume on the Setup>MIDI>Other menu. This update should stop that extraneous noise.

  • Fixed Delay Time not sticking for Ten Tap Delay.

  • Removed Bass, Mid and Treble controls from Capt Hook 1B amp model as this mode models the channel with the EQ Bypass engaged.

Captain Hook 1B Amp Authentic controls before 12.06


Captain Hook 1B Amp Authentic controls in 12.06

  • Fixed incorrect Dry Level in following Drive block models (was 100%, should be 0%):
    • Shred Distortion
    • M-Zone Distortion
    • Ruckus (all versions)

Way back in Firmware 3.02 (Feb 2019), the Drive block was updated significantly. From those release notes:

  • For many types there is now a “Dry Gain” control. This parameter controls the amount of “dry” signal mixed with the “wet” (distorted) signal. For a Tube Screamer-based model this will default to 100% due to the topology. For other types this will default to 0. Values up to 200% are allowed. Note that the dry data is added before any tone controls and therefore is not exactly equivalent to a mix but rather replicates the behavior of analog circuits.

The Drive types in this Firmware Update have had their Dry Gain/Level default changed, as they should not have dry signal to better match the actual pedals.

The Dry Level in the Drive Block (highlighted in blue)

  • Fixed High Slope controls in Cabinet block non-functional.

  • Added graphs to Setup -> I/O -> Pedal menu for pre/post-calibration visualization.

This addition is for the on-board Pedal jacks of the Axe-Fx III, and does not refer to the calibration for expression pedals connected to an FC controller.

Graphs now appear and move in real-time as you sweep your connected expression pedal. A Pre-Calibration graph shows what range the pedal jack previously “knew” and a Post-Calibration graph shows what rage the pedal jack “knows” after calibration.

Note that before calibration, both graphs will show the same data, which makes sense because no calibration was done!

Pedal 1’s (left 2 bars) new graph showing the Minimum value of the pedal (heel down)


Pedal 1’s (left 2 bars) new graph showing the Maximum value of the pedal (toe down). Note that this is BEFORE calibration so both graphs look the same

With your expression pedal plugged into an on-board Pedal jack (Pedal 1 for this example), sweep the pedal from Toe to Heel down and back to see the graph change. When you’re ready to calibrate, Nav to the line “Calibrate PEDAL 1”, then tap Enter. The calibration pop-up window will appear. Now sweep your pedal from Heel to Toe to Heel a few times, making sure you reach both extremes. When you’re done, tap Enter again to end calibration.

Now compare the 2 graphs and see if you notice any change. Typically there will be no change at the lower end of the graph, as most pedals always report full 0. The issue usually is the top end of the graph and trying to report the full 127 value. (MIDI has a range of 0 – 127.)

The difference between the Pre and Post graphs may be subtle, but after calibration, you should see a full 0 to 127 bottom to top representation on the Post-Cal graph.

After calibration, notice that the Post-Cal graph is full, while we see how far we were in the Pre-Cal graph before calibrating.

  • FC: Fix Tap Tempo function setting incorrect tempo when assigned to a stand-in switch.
  • FC: Fix Tuner not exiting when tapping a Stand-In Switch whose Hold function is Tuner.
  • FC: Fix UI of Stand-In Switches page not showing text representations of settings.
  • FC: Fix View Inc/Dec when accessing MLM on an FC-6 via Master Layout “Switch-Combo”.
  • FC: Fix View Inc/Dec mini-LCD display when set to “Destination #”.
  • FC: The main LCD will now display the correct first preset in the bank if the Global Setting for “Display Offset” is set to ‘1.’

  • FC: Stand-in switches will now perform their hold function based on the Hold Function Mode specified on the Config page of FC Controllers.

A setting that is often missed is the option to have Hold functions fire as soon as the Hold Timeout time passes (default behavior) or have it fire only when you release the switch.

To set this, on the Axe-Fx III Front Panel, tap Home, then tap Knob E for Setup, Nav to FC Controllers and tap Enter, then Page Right or Left to Config near the end. Nav to “Hold Function Mode.” Use the Value Wheel to change this setting between Timeout and Switch Up.

Hold Function Mode with Switch up selected


Hold Function Mode with Timeout selected (default)

Let’s say you have a Scene Select action on a Hold function, and you want to select the Scene at a precise time. With the default setting of Timeout, if your Timeout is 0.5 seconds, holding the switch will change to that Scene after 0.5 seconds. That’s difficult to time to the downbeat of the next measure.

Instead, setting this to Switch Up allows you to hold the switch, let the 0.5 seconds pass and then continue holding the switch until the moment you want the Scene to change. You simply let the switch go, allowing it to pop back up, and that is when the Scene change will fire. Note that you still have to pass the Timeout threshold so the FC knows you want the Hold function and not the Tap, but again, just keep holding the switch down and let go when you want the action to fire.

Anyway, this fix just lets stand-in switches also benefit from this setting, so external switches are even more like the built-in FC switches.