Adjust the microphone balance
Do not play any backing
Adjust ISOLO/WIRELESS & MASTER till the level when you play a soft sound and there will be a green light appears on the AR1
Try to play at the peak of the song and check if there’s two green light or one red light appears on the AR1. If two red light appears please turn down the ISOLO/WIRELESS knob
Connect a monitor, adjust to the level that is listening wise most comfortable Avoid turning it too loud as there will be possible current noise
Adjust the backing balance
Play the backing track
Adjust the backing level while not change any setting on the ISOLO. Avoid to turn the backing too loud as it will easily to cause a crack and the instrument dynamic will be overwhelmed
When you can hear the backing and instrument sound clearly, you are ready to go