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Cambridge Audio AZUR 851W

Cambridge Audio AZUR 851W
alaScore 89

15 reviews

Sep, 2017

alaTest has collected and analyzed 15 reviews of Cambridge Audio AZUR 851W. The average rating for this product is 4.7/5, 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 15 reviews)

2 expert reviews

User Reviews  


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Showing 1 - 10 of 14 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.

For some folks, receivers are great; for others, it’s a dirty word. If you fall into the latter camp, Cambridge Audio’s Azur 851E and 851W might be right up your alley. Naturally, offerings of this caliber aren’t inexpensive, though we wouldn’t qualify...

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 by: Brock50 (

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 by: LenWf (

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 by: Anonymous (

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 by: matwall (

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

Consumer review by: MrSensible (

Nice amplifier, but see it and try it first.


I bought a 651W a while ago and was using it with an old analogue pre-amp. I then bought an 851N to use as a pre-amp and a CXC, to upgrade the whole experience and was very impressed with the build quality and the sound. The sound is really top notch...

great sound , build quality

large size and needs space.

Apr, 2016

Consumer review by: Magpie55 (

Fantastic sound


The best sounding amp. Paired with 851n nothing short of remarkable.

Apr, 2016

Consumer review by: Tony21 (

A first class product worth every penny.


This is a superb amplifier and when combined with the Azur 851E pre-amp, it is nothing short of awesome. As a retired professional recording engineer and classical music lover, I have experienced the performance of many amplifiers during my 37 years in...

everything about it.


Jan, 2016

Consumer review by: BGoss81 (

Excellent Amp


Fantastic looking and sounding amp. I was lucky enough to be able to upgrade to this model because of the Christmas sales for only £50 more. Best deal ever. I should have paid more attention to the connections, as there's only digital ins, which, while...

Dec, 2015

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