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Draw every last detail from digitally stored music!

The Azur 851D is for those who want to store their music digitally, but with no compromise on sound quality. With a comprehensive range of connections and high-end componentry designed to draw the best from any digital source, it delivers your digital music in upsampled, stunning quality. The 851D is the last word in high-end digital-analogue conversion.

ATF2 upsampling – All stereo sources can be upsampled to 24-bit/384kHz, kept jitter-free by proprietary, second generation ATF Adaptive Time Filtering algorithms co-developed with Anagram Technologies of Switzerland.

Digital inputs – Six digital inputs (including coaxial, Toslink optical, BNC coaxial and AES/EBU), plus asynchronous USB and optional Bluetooth wireless ensure that the widest possible range of digital sources are supported, with input source quality of up to 24-bit/192kHz.

All-metal chassis – Combines structural rigidity, careful damping and control of acoustic resonance.ritical low level gain stages, these offer far improved stereo separation and imaging – unheard of at this price point.


  • ATF2 audio up-sampling to 24-bit/384kHz
  • Twin Analog Devices AD1955 24 bit DACs delivering superior sound-staging and stereo imaging
  • Balanced XLR and unbalanced RCA analogue audio outputs
  • Audiophile grade toroidal transformer delivering ultra-low low noise and distortion
  • Selectable digital filters – linear phase, minimum phase, steep
  • Full metal casework design with thick brushed aluminium front panel and dual layer damped feet, giving enhanced resonance control
  • Eco-friendly <0.5W standby power consumption
  • Azur Navigator remote control with Cambridge Audio 851 Series, Stream Magic
  • Headphone output with high-end, low distortion amplifier
  • Trigger out, control bus in/out for power syncing plus RS232 controllable