Mark MRACK 12E Manual Del Usuario página 8

9. FX knob
For adjusting the level of the effect sent from to built-in effect to the GROUP 1-2 and MAIN
buses.
10. PROGRAM mp3 KNOB
Turn the knob to select the desire music file, press the knob to play/pause/record/confirm the
selection.
11. USB player
Insert a USB flash drive with music files such as MP3, WMA into the player's jack and control the
playback of the music trough the PROGRAM knob.
12. MODE and REC button
This player has a Bluetooth and recording function. Use MODE button to switching. Press the
REC button after inserting the USB flash drive, an then press the "confirm" button to record. The
recording content is the main output signal. Long press program knob to stop recording.
After recording, press the MODE button to switch to USB MODE or Bluetooth MODE, and pull
out USB disk.
13. USB Section
USB 2.0 port type A
Connects to a computer via a USB cable. The signal from the MAIN L/R buses is output to the
computer.
CAUTIONS:
Use an A/A type USB cable. The cable should be no more than 1.5 m long. An USB 3.0 cable
cannot be used.
Be sure the computer is not in sleep/suspend/standby mode before making a connection with
the mixer.
Connect the mixer to the computer before turning the mixer power on.
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