By default, all Sources being sent to an M-48 are heard regardless of whether they are assigned to Groups or not. The SOURCE LEVEL/PAN menu of your M-48 will allow you to turn down (to INF) any Sources that you do not want to hear in the M-48.
By default, all Sources being sent to an M-48 are heard regardless of whether they are assigned to Groups or not. The SOURCE LEVEL/PAN menu of your M-48 will allow you to turn down (to INF) any Sources that you do not want to hear in the M-48.