Cambridge Audio Azur 851N Reference Network Music Player (2022)

Cambridge Audio Azur 851N Reference Network Music Player (1)

Azur 851N - Network Player

Offering award-winning digital and streaming performance – the 851N is an outstanding network player. Its features include; 24-bit/384kHz upsampling from all sources, native 24-bit/192kHz playback, USB, digital audio inputs and streaming over wi-fi including UPnP and NAS drives, Tidal, Qobuz, Spotify Connect, Apple AirPlay, and DSD.

With a host of superior features and abilities on board, it's no wonder the Azur 851N has won What Hi-Fi?'s Product of the Year award three years in a row.

Key Features

• Network music player / DAC / digital pre-amp
• Digital pre-amplifier featuring optional digital volume control and channel balance
• S/PDIF, TOSLINK, AES/EBU and USB digital inputs are all 24-bit compatible
• ATF2 audio up-sampling to 24-bit/384kHz
• Hi-Res Audio from the twin Analog Devices AD1955 24-bit DACs
• Playback of multiple audio codecs including 24-bit/192kHz studio master quality formats
• USB audio input allowing streaming of up to 24- bit/192kHz audio and DSD streams from a computer
• Spotify Connect and Airplay technology for wireless audio streaming
• Supports 20,000 internet radio stations
• Audiophile grade oversize toroidal transformer for incredibly low noise
• Gapless playback supported
• Award-winning StreamMagic iOS/Android app gives you fullcontrol from your smart device
• Support for optional BT100 Bluetooth receiver (sold separately)
• Balanced XLR and unbalanced RCA analogue audio outputs for superior connectivity
• 4.3” full-colourTFT display for viewing of album art, track info and menus
• Full metal casework with thick brushed aluminium front panel
• Dual-layerdamped feet, giving enhanced resonance control
• Available in black and silver finishes

User Manual (PDF, 2.2MB)

Cambridge Audio Azur 851N Reference Network Music Player (2)

"A muscular, full-bodied presentation, lathered in enthusiastic drive, bone rattling punch and class leading insight is served up with extra helpings of expression and dynamic skill. The Azur 851N, a natural sonic upgrade to the CXN, says all the right things, and is the ideal high-end streamer if you’re looking for a capable digital pre-amp or are after something to simply slot into your existing system."
Read the full What Hi-Fi? review

Cambridge Audio Azur 851N Reference Network Music Player (3)

Cambridge Audio Azur 851N Reference Network Music Player (4)

Beautiful Sound

You can stream virtually any file to the 851N and its internal engine will then bring it to life. Firstly, all tracks are put through Cambridge Audio's 2nd generation Adaptive Time Filtering that upsamples everything to 24bit/384kHz hi-res quality, no matter the original source. As a result, jitter is almost completely absent, and the music sounds amazing.

Read more on Cambridge Audio's proprietary ATF upsampling technology here

The upsampled data then passes through Twin Analog Devices DACs (very high-end digital to analogue converters) which are implemented in a dual differential configuration meaning each channel has its own DAC. The result is lifelike stereo imaging where instruments can be heard in specific parts of your room with uncanny accuracy.

All of these audiophile-level internals are powered by a large toroidal transformer and wrapped in rigid metal casework for the best delivery of high quality and consistent signal with low noise and buzz levels.

Cambridge Audio Azur 851N Reference Network Music Player (5)

Digital Pre-Amp

Not just a great network player the 851N is also an outstanding digital pre-amp that can be connected directly to dedicated power amplifiers as well traditional integrated amps. Keeping the signal digital to the last moment makes it less susceptible to analogue deterioration, while a 32-bit SHARC DSP controls the volume output; by keeping the entire signal digital the best possible sound is achieved, even at very low volume levels.

Cambridge Audio Azur 851N Reference Network Music Player (6)

Ultra Connectivity

The 851N takes almost any digital file from virtually any source and renders it to the highest possible standard meaning any digital audio source can be enjoyed as part of your hi-fi set-up. Its wireless options include NAS Drive / UPnP compatibility, internet radio, Qobuz, Tidal, Spotify Connect, and Apple Airplay. Add an optional Bluetooth dongle (sold separately) and any Bluetooth device can be connected and upsampled also.

Digital source components such as TVs, smartphones, PCs or Macs can connect via optical, co-axial, AES/EBU and asynchronous USB Audio digital inputs. Music files in all the popular formats are supported, from MP3, through to FLAC/Apple Lossless, DSD64 and WAV 16-24 bit master files.

The 851N will play anything you want and thanks to its huge processing power and effortless functionality from Cambridge Audio's award-winning StreamMagic platform, it’s a seamless listener experience.

Cambridge Audio Azur 851N Reference Network Music Player (7)

Cambridge Audio Azur 851N Reference Network Music Player (8)

Azur 851 Series - Outstanding Audio Performance

Cambridge Audio's award-winning Azur 851 Series products are designed without compromise. Built to be the best at what they do, they’ll take your listening to new heights. Every component in the series has undergone thousands of hours of testing and tweaking; the result is reference standard hi-fi.

All 851 Series kit features toroidal transformers, audiophile-grade internal components, and optimised signal paths throughout.

The Azur 851 Series is the culmination of decades of experience, years of hard work and late nights. Ultimately, it’s Cambridge Audio's fanatical attention to fine-tuning that creates award-winning products.

Cambridge Audio

Cambridge Audio wants you to hear your music at its very best, as the artist intended it to be heard, with nothing added, nothing taken away. That’s what we’ve always wanted because that’s what music lovers like us deserve. It’s why we’re constantly experimenting, solving problems and creating new kit. It’s why we’ve been doing what we do for the last 50 years. It’s why we’re always trying to make the listening experience better. Pure.

All Cambridge Audio's research and development take place at their London HQ: where their team of 20 audio engineers create and experiment. The team comprises industrial designers, electrical engineers, coders, QA testers and more who have decades of experience and, together, have created some of the most successful British audio products in the last half-century.

More Information
Model Number 851N
RRP 3,199.00

Twin Analog Devices AD1955 24-bit DACs

2nd Generation ATF2 up-sampling to 24-bit/384kHz. Linear Phase, Minimum phase or Steep modes.

2-pole differential Bessel with DC servo (for both XLR and RCA outputs)

1 x AES/EBU, 2 x S/PDIF coaxial and 2 x TOSLINK optical

USB Type B conforms to USB Audio profile 1.0 or 2.0 (user selectable)

Balanced XLR and unbalanced RCA analogue audio outputs

Streaming Services: Qobuz, TIDAL, Spotify. UPnP: Linear PCM 16-24 bit, 11.025-192kHz Local USB media:Linear PCM 16-24 bit, 11.025-192kHz USB Audio1.0: Linear PCM 16-24 bit, 44.1-96kHz USB Audio 2.0: Linear PCM 16-24 bit, 44.1-192kHz or DSD x64 (DSD also available over UPnP streaming), TOSLINK: 16-24 bit, 32-192kHz (using high quality TOSLINK optical cable) S/PDIF: Linear PCM 16-24 bit, 32-192kHz AES3/EBU: Linear PCM 16-24 bit, 32-192kHz BT100 Bluetooth receiver: A2DP plus aptX Internet radio: 16-24 bit, 11.025-192kHz


IEEE 802.3, 10 Base-T or 100 Base-T

IEEE 802.11 b/g or n (2.4GHz)



115 x 430 x 360mm (4.5 x 16.9 x 14.7”)

8.1kg (17.9lbs)

Azur 851N Network Player, Power Cable, 3 x AAA Batteries, Remote Control, Control Bus Cable, Wi-fi Dongle, Spotify Card

Write Your Own Review

2 Year Warranty
Purchase with confidence. This Cambridge Audio product includes a 2 Year Warranty, for your peace of mind.

To register your product or make a warranty claim online, visit Synergy Audio.

How much does delivery cost?
We offer free post on all orders over $29 to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
All change of mind returns must be in as new condition, in original packaging. We provide a generous 30-day change-of-mind guarantee on our products (unless otherwise stated). All change of mind returns must be in as new condition, in original packaging.

Please visit our

FAQ page

for answers to other frequently asked questions or contact us if you have any other questions or comments.

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