Native Instruments MASCHINE MK3 Manual page 538

5. At the top of the channel strip of the Sound you want to configure, click the first field
under the Sound name and select the desired external input in the menu.
This is equivalent to setting the
6. Turn the little knob on its left to adjust the input gain.
This is equivalent to setting the
Source parameter described above.
Gain parameter described above.
Audio Routing, Remote Control, and Macro Controls
Audio Routing in MASCHINE
MASCHINE - Manual - 538