thomann millenium mps-750 - Rear Panel Connections: Audio and Data

17 [HEADPHONE]
Headphones output.
18 [LINE OUT]
Output socket to connect an amplifier or active monitor (mono left, stereo left/right).
19 [LINE IN]
Input socket for connecting audio devices like CD and MP3 players, etc.
Rear panel
Connections and controls
e-drum module
22