Naim-audio NAC-N 272 User Manual download pdf (Page 26)

7. USB Audio

7.1 USB Media and File Compatibility

USB memory sticks must be in Windows/DOS format (FAT/

FAT32) to be used with NAC-N preampliers. Apple formats

are not compatible.

NAC-N preampliers can play audio les stored on USB

Sticks in the following formats: DSD (NAC-N 272 only), MP3,

M4A, ALAC, AAC, LPCM16/24, FLAC, WMA, WAV, AIFF or

Ogg Vorbis. Files must be free of digital rights management

playback restrictions such as the iTunes FairPlay system.

7.2 iOS Device Compatibility and Charging

NAC-N preampliers can play iOS audio les in the

following formats: MP3, M4A, ALAC, AAC, WAV and AIFF.

An iOS device battery will be charged by default while it is

connected. Charging options can be changed in the USB

input setup menu. See Section 4.3.6.

7.3 Browsing and Playing USB Files

With a USB memory stick inserted

or an iOS device connected, and

the USB input selected, the display

will enter list mode and show the

structure of stored audio les. Use

the handset up (5), down (6), left (3) and ok/list keys to

browse and select items.

Note: The memory stick or iOS device can be safely

connected or disconnected at any time.

Selecting a folder will display the list of les contained

within and selecting a single le will begin playback.

Playback will continue through any list of les contained

within a folder. The order of play can be shued

(randomised) by pressing the handset shue ( ) key.

In long lists of items the handset numeric/text keys can be

used to jump through the list alphabetically.

Once playback is underway the display will exit from

list mode and revert to normal mode where the handset

transport keys ( ) can be used to control playback.

To re-enter list mode for further list browsing and selection,

press the handset ok/list key.

During playback, pressing the handset info ( ) key will

alternately display data stream info and track elapsed time.

NAC-N preampliers can play audio les stored on USB memory sticks and a variety of iOS devices connected to the front

panel USB socket. Begin by inserting a memory stick or connecting an iOS device to the USB socket and selecting USB input.

USB/iPod 4/18

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Naim-audio NAC-N 272 User Manual Page 26

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