Requirements for SD memory
cards/USB devices
SD memory cards
ModelSD, SDHC
Capacitymax. 32 GB
FormatFAT/FAT32
iSD memory cards are available in many
different sizes. Therefore, it cannot be guar-
anteed that playback is possible with every SD memory card.
USB devices
The following USB devices are supported:
RUSB sticks
Rcertain MP3 players
ModelUSB 2.0
FormatFAT/FAT32, maximum
of 4 primary partitions
Electrical con-
sumption800 mA
iUSB devices are available in many differ-
ent sizes. Therefore, it cannot be guaran-
teed that playback is possible with every
USB device.
iDo not use a USB extension cable.
iDo not use a spiral cable for the USB port.
Supported file formats
SD memory card/
USB deviceMP3, AAC, WMA, WAV,
MP4, M4A, M4B (max-
imum 2 channels)
BT AudioSBC, MP3
iTo shorten the initialization period, only
load music files onto the USB device, if
possible.
iUnsupported file formats are not dis-
played.
Audio 15 does not support any DRM (Digital
Rights Management) coded files.
Apple device support
You can play music files stored on Apple devi-
ces via AUX, USB or BT Audio. The following
Apple devices are supported:
RiPod®classic, 6th generation onwards
(limited support for 5th generation)
RiPod®nano, 3rd generation onwards (limi-
ted support for 1st and 2nd generations)
RiPod®touch
RiPhone®
iiPod®and iPhone®are registered trade-
marks of Apple Inc., Cupertino, California,
USA.
SD memory card/USB device file
structure
Maximum number
of folders per direc-
tory200
Maximum number
of tracks per direc-
tory1000
Maximum number
of tracks in "Ran-
dom tracks" random
playback300
50SD memory card/USB device file structure
Technical data
