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Cambridge Audio warrants this product to be free from defects in 

materials  and  workmanship  (subject  to  the  terms  set  forth  below). 

Cambridge Audio will repair or replace (at Cambridge Audio's option) this 

product or any defective parts in this product. Warranty periods may vary 

from country to country. If in doubt consult your dealer and ensure that 

you retain proof of purchase.
To obtain warranty service, please contact the Cambridge Audio 

authorised dealer from which you purchased this product. If your dealer 

is not equipped to perform the repair of your Cambridge Audio product, 

it can be returned by your dealer to Cambridge Audio or an authorised 

Cambridge Audio service agent. You will need to ship this product in 

either its original packaging or packaging affording an equal degree of 

protection.
Proof of purchase in the form of a bill of sale or receipted invoice, which 

is evidence that this product is within the warranty period, must be 

presented to obtain warranty service.
This  Warranty  is  invalid  if  (a)  the  factory-applied  serial  number  has 

been altered or removed from this product or (b) this product was not 

purchased from a Cambridge Audio authorised dealer. You may call 

Cambridge Audio or your local country Cambridge Audio distributor to 

confirm that you have an unaltered serial number and/or you made a 

purchase from a Cambridge Audio authorised dealer.
This Warranty does not cover cosmetic damage or damage due to 

acts of God, accident, misuse, abuse, negligence, commercial use, or 

modification of, or to any part of, the product. This Warranty does not 

cover damage due to improper operation, maintenance or installation, or 

attempted repair by anyone other than Cambridge Audio or a Cambridge 

Audio dealer, or authorised service agent which is authorised to do 

Cambridge Audio warranty work. Any unauthorised repairs will void this 

Warranty. This Warranty does not cover products sold AS IS or WITH ALL 

FAULTS.
REPAIRS  OR  REPLACEMENTS  AS  PROVIDED  UNDER  THIS  WARRANTY 

ARE THE EXCLUSIVE REMEDY OF THE CONSUMER. CAMBRIDGE AUDIO 

SHALL  NOT  BE  LIABLE  FOR  ANY  INCIDENTAL  OR  CONSEQUENTIAL 

DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY IN 

THIS  PRODUCT.  EXCEPT  TO  THE  EXTENT  PROHIBITED  BY  LAW,  THIS 

WARRANTY  IS  EXCLUSIVE  AND  IN  LIEU  OF  ALL  OTHER  EXPRESS  AND 

IMPLIED WARRANTIES WHATSOEVER INCLUDING, BUT NOT LIMITED TO, 

THE WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PRACTICAL 

PURPOSE.
Some countries and US states do not allow the exclusion or limitation of 

incidental or consequential damages or implied warranties so the above 

exclusions may not apply to you. This Warranty gives you specific legal 

rights, and you may have other statutory rights, which vary from state to 

state or country to country.
For any service, in or out of warranty, please contact your dealer.

Limited warranty

Plug Fitting Instructions (UK only)

The cord supplied with this appliance is factory-fitted with a UK mains 

plug  fitted  with  a  3-amp  fuse  inside.  If  it  is  necessary  to  change 

the fuse, it is important that a 3-amp fuse is used. If the plug needs 

to be changed because it is not suitable for your socket, or becomes 

damaged, it should be cut off and an appropriate plug fitted following 

the wiring instructions below. The plug must then be disposed of safely, 

as insertion into a mains socket is likely to cause an electrical hazard. 

Should it be necessary to fit a 3-pin BS mains plug to the power cord, the 

wires should be fitted as shown in this diagram. The colours of the wires 

in the mains lead of this appliance may not correspond with the coloured 

markings identifying the terminals in your plug. Connect them as follows:
The wire which is coloured BLUE must be 

connected to the terminal which is marked 

with the letter 'N' or coloured BLACK.
The wire which is coloured BROWN must 

be connected to the terminal which is 

marked with the letter 'L' or coloured RED.
The wire which is coloured GREEN/

YELLOW must be connected to the 

terminal which is marked with the letter 'E' 

or coloured GREEN.
If a standard 13-amp (BS 1363) plug is used, a 3-amp fuse must be 

fitted or, if any other type of plug is used, a 3-amp fuse must be fitted, 

either in the plug or adaptor, or on the distribution board.

4

Summary of Contents for 851D

Page 1: ...Your music our passion 851D azur Upsampling DAC Digital Pre Amp User s manual 2 ENGLISH...

Page 2: ...d to a mains socket outlet with a protective earthing connection The unit must be installed in a manner that makes disconnection of the mains plug from the mains socket outlet or appliance connector f...

Page 3: ...hot when in use Do not stack multiple units on top of each other Do not place in an enclosed area such as a bookcase or in a cabinet without sufficient ventilation Ensure that small objects do not fa...

Page 4: ...EXCLUSIVE REMEDY OF THE CONSUMER CAMBRIDGE AUDIO SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY IN THIS PRODUCT EXCEPT TO THE EXTENT PRO...

Page 5: ...on the digital outputs Coaxial To obtain best results use a high quality 75 ohm digital RCA interconnect cable not one designed for normal audio use Toslink Optical Use a high quality TOSLINK fibre op...

Page 6: ...tively pressing the Filter button on the remote will cycle through different digital filter phase modes Linear Minimum Steep Linear inverted Minimum inverted and Steep inverted Alternative digital fil...

Page 7: ...ource inputs Bluetooth BT100 Press to select bluetooth source input using the BT100 dongle To pair devices press and hold for a few seconds to initiate the pairing function Note Disconnect one device...

Page 8: ...cted to the 851A via the Balanced ouput 851A 851D StreamMagic 6 PC USB connection The diagram below shows the USB audio input connection from a personal computer using a type A B USB lead to your 851D...

Page 9: ...f the manual Note When connecting to an 851W Unbalanced connection can also be used if preferred 851D 851W Control Bus connection Control Bus is the recommended method when using the 851D and other Ca...

Page 10: ...and play In this configuration the 851D is able to work at up to 24 bit 96kHz by declaring to your computer that it can handle any sample rate from 32kHz to 96kHz However in some Windows Mac operating...

Page 11: ...where one speaker is further away than the other or the source material itself has a channel imbalance Front IR Used in conjunction with Custom Installation C I systems or IR repeater systems It may...

Page 12: ...internal feed forward in the DSP its impulse response will exhibit some pre ringing In other words when excited with a theoretical impulse the output has both a small amount of pre and post spike amp...

Page 13: ...ion of close in aliasing images Here we have traded a little attenuation of the very highest frequency response 2dB at 20kHz for 44 1kHz material and a little more pre and post ringing for a very stee...

Page 14: ...pt held down for a further 12 seconds an amplifier player Off command is generated 2 Press and hold the Mute button The remote first generates it s mute toggle command Keep the button held down after...

Page 15: ...bit 44 1kHz 48kHz 88 2kHz 96kHz 176 4kHz 192kHz Toslink 16 24 bit 32 192kHz BNC S PDIF and AES EBU 16 24 bit 32 192kHz Line level balanced output Frequency response 20Hz to 20kHz 0 1dB THD 1Khz 0dBFs...

Page 16: ...Audio is a brand of Audio Partnership Plc Registered Office Gallery Court Hankey Place London SE1 4BB United Kingdom Registered in England No 2953313 www cambridge audio com 2013 Cambridge Audio Ltd...

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