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Looper block

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Looper: supported by which Fractal Audio products

Looper: X/Y switching or channels

The Looper doesn't support X/Y switching or channels.

Features of the Looper

Axe-Fx III

The Looper is a dedicated effect block, providing more than 5 minutes of stereo loop time. It's possible to select Half Time, Undo, Threshold, Quantize, and choose between Mono / Stereo. Note that you can record with Half Time switched on, and then turn it off during playback for very fast riffing.

Axe-Fx II



The Looper in the FX8 has additional features. It's a "global" looper so it's present in every preset. It can be positioned in different locations.


The location can be set globally (Global menu) and can be overridden per preset.



Threshold switched on, recording will not start until the input level passes the specified threshold, set by the Threshold Level parameter. If you press record, you will see the indicator come on and then turn off. This means it is waiting for input to start recording. Once you start playing you'll see the indicator come on and you are recording.


Quantize will automatically chop your recording to the nearest 1/4 note tempo click. Recommended to use in conjunction with Threshold. Press Record, then start playing on a downbeat click. Press Record again to stop. If you stop slightly too soon or late it will automatically trim the recording to the length. Also, it will automatically start playback on the downbeat. So if you stop playback and start it up again later, it should always come back in on the beat.


Undo will remove the most recently recorded stack layer. If you're not in a mode with Undo, it doesn't do anything.

Undo requires CPU cycles during a brief moment. When used with presets with high CPU utilization, this can result in warnings or audible pops.

Dub Mix

"Dub Mix reduces the previous layer AFTER you add a new layer (press Stack then press it again)." source

Looper and CPU usage

Disable the Looper on the FX8 to save CPU.

Foot switches

Use foot switches to control the Looper

Go to I/O > Ctrl to assign the looper controls (such as Play and Record) to foot controller switches. Some functionality requires a latching switch, for other stuff a momentary switch is required. Walkthrough for the MFC-101.

You can also assign Looper Record/Play to an external switch, for easy access at all times.


On the Axe-Fx III the MIDI CCs can be assigned.

Looper Control Mode

The MFC-101 has a Looper Control Mode. This mode is enabled by pressing and holding the Reveal switch on the MFC-101. The MFC-101 will display "LOOPER CONTROL MODE" for two seconds and the red LED will be lit on the Reveal switch. This mode is disabled by selecting the Reveal switch on the MFC-101. In Edit > Setup you can select if this requires short or long pressing-and-holding. You can also disable Looper Control Mode altogether. MFC-101 Looper Control Mode Mini Manual.

The FX8 and AX8 also provide Looper controls.


Keep the Looper running when switching presets

The loop buffer will be erased when switching presets, unless Spillover is enabled. To survive preset switching, both presets must have the Looper, set to the same mode.

Use the Looper when tweaking sound

Use the Looper to dialing in amp tones. Place it before before the Amp block, and record a "unamped" guitar tone. Now keep playing it back while adjusting amp settings. You'll hear the differences in real time. Alternatively, use it to compare two sounds. Place it after the Amp block and record. Start tweaking. When you want to hear the original tone, play back the sample.

Assign the Looper a dedicated output

The multiple Output blocks and effects loops on the Axe-Fx III make it easy to send the Looper's output to a specific output.

Pan the Looper output

How to pan the Looper to one side when starting playback.

Firmware developments

Firmware 10

Firmware 14

Axe-Fx III

"We completely rewrote the Looper. Over five minutes of stereo recording with undo." source


More information about the Looper



Can't hear the Looper on the FX8

If you can't hear the Looper, check the LOOPER LOCATION. It must not be set to NO LOOPER. If it is set to GLOBAL, check the GLOBAL LOOPER LOCATION (in the SETUP: GLOBAL menu) to ensure that it is not set to NO LOOPER. This may also be due to PRE/POST settings. If your rig uses only the PRE chain or only the POST chain, set LOOPER LOCATION accordingly.

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