You can perform a factory reset on the unit by following the steps below:
1. Press the 'Menu' button on the remote control or front panel of the unit.
2. Turn the rotary dial on the front panel of the unit to scroll to the 'Factory Reset' option.
3. Press the rotary dial to select a factory reset.
Note: Performing a factory reset will restore the AXR to its factory settings and clear all stored presets and settings.