Cambridge Audio Azur 851N Manuel Du Propriétaire

USB Media

The 851N can also playback audio content from standard USB hard-drives and 

thumb drives. Simply copy your media files onto your USB drive and then connect it 

to the front or back USB sockets of the unit. 
Press the Home button to get to the top menu. Select the 'Music Library' menu.
The 851N will now scan the thumb drive for media files. Once the scan is completed, 

you will then be able to browse the files by selecting 'By Album' or 'By Artist'. 

Queue

Viewing the queue 

To view the queue at any time press the '

•••' (more) button. You can jump playback 

to any point in the queue by navigating up/down the list and pressing the Enter 

button.

Editing the queue

Tracks can be removed from the queue by highlighting them with the navigator and 

pressing the Stop button.
To clear an entire queue, navigate to the bottom of the queue to highlight [Clear 

Queue] and press the Enter button.
Note: Switching the 851N into standby will delete the queue, unless Standby Mode 

is set to 'Network Standby'.

Playlist 

The 851N also supports various playlist formats. For permanent storage of favourite 

media selections it is recommended to use suitable software to create playlist.
These can then be accessed by the 851N from USB Media or UPnP servers that 

support Playlist serving.

Inputs

 

» USB Audio

 

» D1-D5 (S/PDIF Coax / Toslink Optical)

 

» Bluetooth 

(Only available when a BT100 is plugged into the rear USB)

 

» Spotify

The 851N has 6 digital inputs, USB Audio, S/P DIF co-axial and Toslink optical. 

The digital inputs allow you to play audio sent from a separate digital audio source 

such as a PC or CD player with digital outputs. This can optimise sound quality, for 

example where the 851N USB Audio is used instead of the PC soundcard or the 

upsampled and re-clocked low jitter DACs of the 851N are used instead of a CD 

player DACs.
The USB Audio input directly connects to a PC or Mac computer. The 851N 

can be setup to stream via the simple setup USB1.1 or the high sample rate 

24-bit/192kHz via USB2.0. Also note that the SP DIF co-axial and Toslink inputs 

are capable of high sample rates up to 24-bit/192kHz, but your source equipment 

and interconnect cables must be capable of this sample rate to achieve this.

Advanced USB audio

The 851N is both USB 2.0 (Hi-Speed) and USB 1.1 (Full-speed) USB port compatible.
It should also work with the new USB 3.0 ports where the PC will simply treat the 

851N as if it were a USB 2.0 or 1.1 device.
The 851N also supports two USB Audio protocols (not the same as the port types 

themselves) USB Audio 1.0 (which works over USB 1.1 ports and supports up to 

24-bit/96kHz) or USB Audio 2.0 (which requires a USB 2.0 port and can support 

up to 24-bit/192kHz).
The default configuration is USB 1.1 and USB Audio 1.0 which works with nearly all 

common operating systems and computer types without drivers and supports up 

to 24-bit/96kHz audio, simply plug in and play.
In this configuration the 851N is able to work at up to 24-bit/96kHz by declaring to 

your computer that it can handle any sample rate from 32kHz to 96kHz.
However in some Windows/Mac operating system variants the operating system 

itself may restrict or fix the output sample rate or re-sample the audio.
For more details on USB Audio, see our online guide at www.cambridgeaudio.com. 

The USB driver is also available from the website. With careful choice of playback 

software and settings many pitfalls can be avoided. 
In particular our free Windows USB Audio 2.0 driver (available from our website) 

supports up to 24-bit/192kHz audio and WASAPI Exclusive or ASIO modes that can 

give enhanced performance.

A brief explanation of your choices are below:

Use with PCs

With the 851N switched to USB Audio 1.0 (this is the default setting) the 851N will 

work with the native Windows XP, Vista, Windows 7 or 8 Audio 1.0 driver (no need 

to load any new driver) and accept audio up to 24-bit/96kHz.
With the 851N switched to USB Audio 2.0 the 851N needs the Cambridge Audio 

USB Audio 2.0 Driver to be loaded and can then accept up to 24-bit/192kHz (and 

support ASIO and WASAPI Exclusive if required).
The driver is available from www.cambridgeaudio.com.

Use with Macs

No extra drivers are required. With the 851N switched to USB Audio 1.0 the 851N 

will work with the native Mac OS-X 10.5 (Leopard) or above Audio 1.0 driver and 

accept audio up to 24-bit/96kHz.
With the 851N switched to USB Audio 2.0 the 851N works with the native Mac 

OS-X  10.5  (Leopard)  or  above  Audio  2.0  driver  and  can  accept  audio  up  to 

24-bit/192kHz.

Use with Linux

In USB Audio 1.0 mode the 851N will work with most Linux distributions, allowing 

the playback of audio up to 24-bit/96kHz. 
Newer Linux distributions (e.g. Ubuntu 10.04) support USB Audio 2.0 for which the 

851N should be switched to USB Audio 2.0 to accept audio up to 24-bit/192kHz.
For both cases because Linux distributions vary according to their creators' choice 

of software components, including drivers, it is not possible to guarantee operation 

and Audio drivers may need to be loaded.
‘Class drivers’ for generic support of USB Audio Class 1.0 or USB Audio Class 2.0 

devices may be available from the Linux community, we do not supply these.

BT100 and Bluetooth audio streaming

The 851N is compatible with the optional BT100 Bluetooth adaptor from 

Cambridge Audio. 

When a BT100 is plugged into the rear USB socket an extra menu item called 

Bluetooth appears in the Digital Inputs menu.
Selecting this allows the 851N to receive wireless Bluetooth audio from most 

phones/tablets and laptops.
Both the standard SBC CODEC and newer high quality aptX CODEC are supported 

(if the sending device supports it). Contact your dealer for details.

Optional BT100 Bluetooth adaptor

When connected to your 851N this adaptor allows the 851N to receive Bluetooth 

Audio (known as Bluetooth Advanced Audio Distribution Profile or A2DP). Contact 

your dealer for details.
The BT100 supports Bluetooth A2DP using either the original SBC encoded form or 

the latest higher quality aptX encoded form.
SBC and aptX refer to the encoding used over the wireless Bluetooth interface only 

and not the format your music may be in, which can be any type that your phone/

laptop or other playing device supports.
Your playing device plays your files then re-encodes the playback before streaming 

it to the BT100 in one of these two formats.
Many phones and laptops now feature Bluetooth with A2DP. SBC should be 

supported by all such devices (it is the mandatory format for A2DP).
aptX is optional, so check if your sending device supports it, if you wish to achieve 

the highest quality audio transfer.
Note:

 The BT100 declares that it can handle both SBC and aptX to the sending 

device which will then use whichever version it supports.