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Cambridge Audio AZUR 851W

Cambridge Audio AZUR 851W
alaScore 89

19 reviews

Mar, 2018

alaTest has collected and analyzed 19 reviews of Cambridge Audio AZUR 851W. The average rating for this product is 4.8/5, compared to an average rating of 4.1/5 for other Receivers & Amplifiers for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Receivers & Amplifiers the Cambridge Audio AZUR 851W is awarded an overall alaScore™ of 89/100 = Very good quality.

Review analysis

(Based on 19 reviews)

2 expert reviews

User Reviews  


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Showing 1 - 10 of 18 Show Reviews: in English | in other languages (1)

Expert review by : Steve Munz (

Cambridge Audio Azur 851E Preamplifier & 851W Stereo Power Amplifier Review


Review: Cambridge Audio's Azur 851E Preamp and 851W Stereo Power Amplifier aren't inexpensive, but unlike flagship level products from other marques, they're actually affordable. Audiophile Separates.

May, 2014

Expert review by : Chris Croft and Steve Holding (

Cambridge Audio 851E and 851W Review & Test


This combo from Cambridge Audio offers not only ‘holy grail’ audio performance, but also an almost-complete suite of features and facilities.

Consumer review (

Excellent value for money


Paired with my CXN V2 Preamp and sounded fantastic. My speakers are Kef Q900 and I wasn't aware they could sound so much better! It looks great and well worth the price. Packed with power and punch, doesn't disappoint to any genre of music.

Jan, 2018

Consumer review (

Stunning looking and exceptional build


I bought an 851W 6 months or so previously and was so impressed I decided to buy another and bridge them, wow....sounds superb with so much power, but with incredible musicality, very happy customer

Oct, 2017

Consumer review (

Cambridge Audio Azur 851W


I have an Azur 851N - superb streamer - and a pair of Focal Aria 936 speakers, which are just fabulous - so detailed, clean and musical. Just wonderful to listen to if you have the room size (they are rather large). I was running them with a Technics...

Oct, 2017

Consumer review (

The last piece in the jigsaw


This Cambridge 851W power amplifier completes my hi-fi. It really is a fine piece of kit and enhances the rest of my system

Sep, 2017

Consumer review (

Exceptional value power amp


Have used (and long term auditioned) various amps over the years including Acurus, Krell, MacIntosh & bought this to replace my DIA 100 MkII (Stereophile mags best integrated amp under $1000 a while back). I needed more power (don't we all) to drive...


blue leds not as bright as 851n

Jun, 2017

Consumer review (

Great sound for the money


I bought the Cambridge Audio Azur 851W to replace my old Mission amp. Initially I used it with my old IMF Transmission Line Speakers. I was immediately impressed by a much extended and powerful bass. In other words the bass is not at all over...

good punchy bass clarity , sounds real good at higher volume levels , auto turn on when music is present

runs a little warm good ventillation required

Mar, 2017

Consumer review (

Site silent in the backgound


I bought this amp with the Azur 851 Network Streamer. The sound from the system is superb. Being connected to my home ethernet, and controlled via the 851N the power amp is just never noticeable. It sits silent and ready when not in use, and comes to...

superb sound , invisible

runs quite hot

Nov, 2016

Consumer review (

Perfect powerhouse


This amplifier is simply superb. It has a powerful, clean sound and can easily drive large or challenging speakers. I got a real step up in sound quality when I plugged it in, much firmer bass and wider soundstage. Easily drives my large 4 Ohm...

sounds fantastic ; looks great ; keeps the room nice and warm ; balanced inputs

slightly plasticky speaker connection terminals

Aug, 2016

Product Specifications


Bridge-mode power output per channel (4 Ohm):800
Bridge-mode power output per channel (8 Ohm):500
Damping factor:110
Frequency range:5 - 80000
Peak power per channel:800
RMS power output per channel (4 Ohm):350
RMS power output per channel (8 Ohm):200
Signal-to-Noise Ratio (SNR):90
Total Harmonic Distortion (THD):0.005

Ports & interfaces

AC (power) in: Yes


Power Consumption (Standby):0.5
Power consumption (typical):2400

Technical Details

Colour of product:Black / Silver
Connectivity Technology:Wired

Weight & Dimensions

Height :14.8