You can enter Tuner Mode on the REACTOR using the REACTOR Control. The REACTOR Control features a built-in tuner with an LED display for easy visibility during tuning.
Enter Tuner Mode
Hold the FX LOOP/TUNER footswitch to enter tuner mode.
Reading the Tuner
While in tuner mode, the 6 footswitch LEDs will display whether the string being played is in tune.:
Exit Tuner Mode
Tap any footswitch to exit Tuner mode.