Main & subs mix, usb out, 2-track return, and more, Owner's manual 23, Main – MACKIE PROFESSIONAL MIC/LINE MIXERS WITH FX AND USB I/O PROFX16 User Manual
Page 23: Sub 2 sub 3 sub 1, Sub 4, Int fx mute switch and led, Usb out switch, 2-track return tape / usb switch, 2-track return level, Break switch and led
Main & subs mix, usb out, 2-track return, and more, Owner's manual 23, Main | Sub 2 sub 3 sub 1, Sub 4, Int fx mute switch and led, Usb out switch, 2-track return tape / usb switch, 2-track return level, Break switch and led | MACKIE PROFESSIONAL MIC/LINE MIXERS WITH FX AND USB I/O PROFX16 User Manual | Page 23 / 36