Operation Manual
13 
Caution: Depending on the type of headphones connected to the Headphones jack, the Core mix 4 USB 
is capable of producing high output levels via the phones output. Therefore, make sure to turn the 
control all the way to the left (minimum setting) before connecting the headphones. Be aware of the 
fact that listening to loud sound pressure levels over a longer period of time leads to hearing-damage! 
Record Module 
34. EQ button 
Pushing the EQ button allows you to select a preset EQ curve. You can choose 
between: None - Pop – Rock – Bass – Jazz – Classic. 
35. USB slot 
Slot for inserting an USB stick.  
36. SD card slot 
Slot for inserting a SD/MMC card. The contacts of the card must point 
downwards. 
37. Display 
Fig. 12 
38. Repeat button 
Tap the repeat button to select between: Repeat single track, Repeat USB- stick/SD- card or repeat off. 
39. Stop button 
Push the stop button to stop playback/recording. 
40. Play/pause  button 
Use this button to start playback. Press once to start playback, twice to set the pause mode, and again 
to resume playback. 
41.  /  button 
Tapping this button allows you to skip to the next track. 
Pushing and holding this button allows you to play a track fast forward. 
42. / button 
Tap this button to go back to the beginning of the current track or select a previous track for playing. 
Pushing and holding this button allows you to play a track fast backwards. 
43. Delete button 
Push the delete button during playback. In the display appears: “Del One?”. Pushing the delete button 
again will delete the current track. “Success” will appear in the display. 
44. Record button 
Pushing this button will start recording the master mix independent of the Master (25) control. 
Note: depending on the USB stick/ SD card you use, it can take a couple of seconds before the actual 
recording will start. 










