"So while the 851C DAC/player brings a quiet composure to the party, the 851A is a wolf in sheep’s clothing, a muscular amp that grips the speakers and serves up tight, powerful and extended bass. In the 851C and 851A you’re getting cutting-edge technology for substantially less than high-end prices. Add the best speakers you can afford and this two-channel system will deliver a taste of hi-fi heaven."
Azur 851A
Integrated Class XD Amplifier
The 851 possesses incredible power, finesse and astonishingly low distortion. In its design we assessed every component for sonic excellence and revised, reviewed and optimised the signal path for minimal distortion. Thousands of hours were spent testing and tweaking, the result is an amplifier we’re incredibly proud of.
"A muscular amp that grips the speakers and serves up tight, powerful and extended bass.... cutting-edge technology for substantially less than high-end prices."
- European Imaging & Sound Association, August 2012
Azur 851A
Integrated Class XD Amplifier
The 851 possesses incredible power, finesse and astonishingly low distortion. In its design we assessed every component for sonic excellence and revised, reviewed and optimised the signal path for minimal distortion. Thousands of hours were spent testing and tweaking, the result is an amplifier we’re incredibly proud of.
"A muscular amp that grips the speakers and serves up tight, powerful and extended bass.... cutting-edge technology for substantially less than high-end prices."
- European Imaging & Sound Association, August 2012
Press reviews

Witchdoctor
New Zealand,
WitchDoctor name the 851A&C as joint Product of the Year winners!
"They seem to be the absolute class leaders at their respective price points. The build quality that just shouldn’t be possible for the money, and the huge feature sets are impressive enough, but with sound quality that is out of all proportion to their price tags, these components are on another level when it comes to value for money."

Music Emotion
Netherlands,
"The Cambridge Audio engineers succeeded in the difficult task to improve the 840-models. Especially used in combination they form an impressive and balanced set-up. An A-grade result! Wonderful products at a very good price."

HD Fever
France,
"Musical, dynamic, pleasurable and sophisticated listening, enormous power, impeccable build quality, great design and ease of use - who could ask for more?"

Hi-Fi News
United Kingdom,
"Frankly, the feature set of the 851C and 851A is the stuff of high-end audio dreams, but packaged in sensibly-priced components... As is so often the case with products from Cambridge Audio, what you're getting is cutting-edge technology for substantially less than high-end prices... This Azur combo took me to places I haven't been for a long time!"

European Imaging and Sound Association
Portugal,
"So while the 851C DAC/player brings a quiet composure to the party, the 851A is a wolf in sheep’s clothing, a muscular amp that grips the speakers and serves up tight, powerful and extended bass. In the 851C and 851A you’re getting cutting-edge technology for substantially less than high-end prices. Add the best speakers you can afford and this two-channel system will deliver a taste of hi-fi heaven."

Hi-Fi Choice
United Kingdom,
"They now compete with the very best in class when it comes to sound and are pretty much in a league of their own when it comes to features... This refined and revealing pair delivers a dynamic, clean and engaging result."
Customer Reviews
The details
120W RMS into 8 Ohms 200W RMS into 4 Ohms
< 0.001% 1 kHz at 80% of rated power 0.01% 20 Hz - 20 kHz at 80% of rated power
2 x balanced XLR, 8 x RCA inputs
Preamp output Record output
10 Hz - 50 kHz +/- 1 dB
> 93 dB (ref 1W/8 Ohm)
Inputs 1 and 2 (balanced) 20 kOhm, Inputs 1-7 unbalanced 20 kOhm Rec Input 20 kOhm
> 110 at 1 kHz
800W
Active (no signal) 70W
Standby <0.5W
Shelving type Max bass boost/cut +/- 10 dB at 10 Hz Max treble boost/cut +/- 7.5 dB at 20 kHz
Silver or black
430 x 115 x 385mm (16.9 x 4.5 x 15.2”)
15.0Kg (33lbs)
Azur 851A Integrated Amplifier, Power Cable, 3 x AAA Batteries, Remote Control