CM/CS Series User Manual
USB/SD audio player
CM series mixer-amplifiers are fitted with a built-in USB/SD audio player.
This unit allows playback of music or audio messages which are stored as standard compressed
audio files on either USB pen drive or SD card.
Push a USB pen drive into the USB port (3) and/or SD card into the SD card input (5) and the audio
files will start to play automatically. Turn up the USB/SD rotary control gradually to hear the output
from the speakers and increase to the required level.
If play does not start automatically, press the USB/SD button (1) and Play/Pause button (7) to check
if the player is set to play from the required memory device. Try Previous track and Next track
buttons (6, 8) if the selected track is unable to play. Otherwise, check that the audio files are of a
standard compressed type.
The USB/SD button (1) switches between the USB memory device and SD card, allowing a choice of
playlist and storage type. Normal playback will read through all tracks on the storage device. Press
the REPEAT button (2) once to continually repeat the current track, press REPEAT again to enter the
random track selection mode. Pressing the EQ button (4) steps through 5 preset equalizer settings,
offering different tonal responses to suit the type of music or compensate for room acoustics.
Pressing the Previous track button (6) briefly steps backwards through tracks on the memory device.
Press and hold this button to decrease the playback volume.
Pressing the Next track button (8) briefly steps forwards through tracks on the memory device.
Press and hold this button to increase the playback volume.
To pause the current track, press the Play/Pause button (7) and press it again to resume playback.
The LED digital display (9) will show the track number when a track is selected and then the elapsed
time when it is playing.
Note: The USB pen drive and SD card will protrude from the front panel when inserted, so removing
these after use can help to avoid damage to them.
1. USB / SD input source selector
2. REPEAT button (repeat or random play)
3. USB port: accepts USB storage device
4. EQ select: step through 5 different presets
5. SD CARD INPUT
6. Previous track or volume decrease
7. Play / Pause track
8. Next track or volume increase
9. LED digital display
