Cambridge Audio Azur 851A Amplifier

Category: Integrated Amplifiers, 

Product Code: 851A

Availability: Low


The ultimate in amplification and built without compromise, the 851 is our finest integrated amplifier. It 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 like you’ve never heard before.
Nothing prepares you for the sound quality of our 851A. Rated at 120 Watts per channel and built with a fastidious attention to detail, it presents your music with astounding depth and incredible clarity. The precision volume control provides remarkable stereo separation, while the overall effect is to give your music collection a new lease of life.


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Power output
120W RMS into 8 Ohms 200W RMS into 4 Ohms
THD (unweighted)
< 0.001% 1 kHz at 80% of rated power 0.01% 20 Hz - 20 kHz at 80% of rated power
Audio inputs
2 x balanced XLR 
8 x RCA inputs
Audio outputs
Preamp output Record output
Frequency response
10 Hz - 50 kHz +/- 1 dB
S/N ratio (ref 1w)
> 93 dB (ref 1W/8 Ohm)
Input impedance
Inputs 1 and 2 (balanced) 20 kOhm 
Inputs 1-7 unbalanced 20 kOhm Rec Input 20 kOhm
Power amp damping factor
> 110 at 1 kHz
Max. power consumption
Min. power consumption
Active (no signal) 70W
Standby power consumption
Standby <0.5W
Tone control
Shelving type Max bass boost/cut +/- 10 dB at 10 Hz
Max treble boost/cut +/- 7.5 dB at 20 kHz
Silver or black
(WxHxD)430 x 115 x 385mm (16.9 x 4.5 x 15.2”)
15.0Kg (33lbs)