Azur 851A Integrated Class XD Amplifier

Azur 851A Integrated Class XD Amplifier
Azur 851A Integrated Class XD Amplifier Azur 851A Integrated Class XD Amplifier

The 851A is a 120 Watt integrated amp with 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. Hours were spent testing and tweaking. The result is an amplifier like you’ve never heard before.

The 851A uses Class XD amplification, combining the fantastic sound of Class A amplification with the efficiencies of Class AB. It uses two dual mono amplification blocks and is powered by two toroidal transformers. The result is a purity and depth of sound that has to be heard to be believed.

We built the 851A without sonic compromise, and that’s true of the connectivity too. Nine RCA inputs cater for regular analogue inputs, while for high end components there are two sets of balanced XLR inputs. Two sets of speaker terminals allow bi-wiring of speakers, for further sonic benefits. And Control Bus inputs allow the linking of compatible Cambridge Audio products for easy control from one remote.

Available Options

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Tech Specs

  • Power output120W 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 inputs2 x balanced XLR 
    8 x RCA inputs
  • Audio outputsPreamp output 
    Record output
  • Frequency response10 Hz - 50 kHz +/- 1 dB
  • S/N ratio (ref 1w) > 93 dB (ref 1W/8 Ohm)
  • Input impedanceInputs 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 consumption800W
  • Min. power consumptionActive (no signal) 70W
  • Standby power consumptionStandby <0.5W
  • Tone controlShelving type 
    Max bass boost/cut +/- 10 dB at 10 Hz 
    Max treble boost/cut +/- 7.5 dB at 20 kHz
  • ColourSilver or black
  • Dimensions (WxHxD)430 x 115 x 385mm (16.9 x 4.5 x 15.2”)
  • Weight15.0Kg (33lbs)
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