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Your music 

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 our passion

851C

azur

CD/DAC/Pre

User’s manual

2

ENGLISH

Summary of Contents for AZUR 851C

Page 1: ...Your music our passion 851C azur CD DAC Pre User s manual 2 ENGLISH ...

Page 2: ...ndows driver Digital volume and output mute functions are incorporated that enable the 851C to operate as a combined CD player DAC and digital pre amplifier that can be connected directly to a separate power amplifier if desired In addition to these audiophile features Control Bus Input Output IR Emitter Input and RS232 control are provided to make it easy to integrate this unit into Custom Instal...

Page 3: ...ms such as newspapers tablecloths curtains etc This unit must not be used near water or exposed to dripping or splashing water or other liquids No objects filled with liquid such as vases shall be placed on the unit Important safety instructions The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un insulated dangerous volta...

Page 4: ...h 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 invo...

Page 5: ...r audio use USB Interface A USB B type socket is fitted to the 851C to enable the playback of audio from a personal computer running either Microsoft Windows or Apple Mac OS X operating systems Some builds of Linux are also suitable Note Always use a high quality USB connection cable certified as USB Hi Speed USB cable connections longer than 3m may result in inconsistent audio performance Ground ...

Page 6: ...e Press to Play a loaded disc or to Pause playback if it is underway Note Depending on the audio software installed on the host personal computer the Play and Pause buttons may also be able to control USB audio file playback Stop Stops CD playback Skip Scan Press to skip CD tracks Pressing and holding the button will scan forwards or backwards through the currently playing CD track The Skip Scan b...

Page 7: ...e The following buttons are used to control Cambridge Audio Azur range amplifiers only such as the matching 851A or when the 851C has been set to preamp mode Digital Volume Enabled Volume Up Down These buttons enable the amplifier volume adjustment for suitable Cambridge Audio Azur range amplifiers Note If the 851C Digital Volume feature is enabled the handset volume buttons will affect the signal...

Page 8: ...er may not be able to read or play it Never load more than one disc at a time into the disc drawer Playing a specific CD track With the 851C switched on and a disc loaded specific tracks can be selected for playback by pressing one of the front panel or handset Skip buttons to step through the tracks on the disc forwards or backwards When the desired track is shown on the 851C display press the fr...

Page 9: ...ate and word length also known as bit depth along with an indication that the stream is being up sampled to 24 bit 384kHz If no source or an incompatible data stream is connected to a digital input the display will show UNLOCKED when the input is selected Note Rather than display the exact word length some sources report data as either 20 bit maximum displayed as 20 or 24 bit maximum displayed as ...

Page 10: ...ilds of Linux are now supporting USB Audio 2 0 for which the 851C should be switched to Audio 2 0 to accept audio up to 24 bit 192kHz For both cases because Linux builds vary according to their creators choice of software components including drivers it is not possible to guarantee operation and Audio drivers may need to be loaded Class drivers as they are called for generic support of Audio Class...

Page 11: ...onnected to a power amplifier in this way as this returns the output level to an un adjustable maximum level for use only into an integrated amplifier or pre amplifier with its own volume control When Digital Volume is enable a Ch Balance Channel Balance option is also available in the menu structure This allows adjustment of the relative level between left and right channels for circumstances whe...

Page 12: ...enu interface press the front panel or handset Menu button to step back through the interface Note The 851C will automatically return to normal play mode if it is left inactive in setup menu mode for more than a minute Each setup parameter and its options is described following paragraphs Auto Off When Auto Off is engaged the 851C will switch to standby after a preset time if no audio is playing T...

Page 13: ...uation for 44 1kHz material Linear Phase Minimum Phase Steep Roll off at 20kHz 0 1dB 0 1dB 2dB Roll off at 22kHz 10dB 10dB 82dB Ultimate roll off 140dB 140dB 140dB We encourage you to experiment with the filters to determine which sound best to your ears and using your source equipment programme material The 851C remembers and recalls the selected filter type for each input individually making it ...

Page 14: ...to C I systems as follows 1 Press and hold the Standby On button The remote first generates it s standby toggle command Keep the button held down after 12 seconds a CD player On command will be generated If the button is kept held down for a further 12 seconds a CD player Off command is generated A full code table and RS232 protocol for this product is available on the Cambridge Audio website at w...

Page 15: ...correlated jitter 60pS for all digital inputs CD playback and USB 2 0 180pS for USB 1 0 Crosstalk 1kHz 130dB Crosstalk 20kHz 114dB Output impedance 50 ohms 0dB Fs Output 2 2Vrms 2 2Vrms each phase for the balanced output Digital Input 1 S PDIF 75 ohms or TOSLink optical Digital Input 2 S PDIF 75 ohms or TOSLink optical AES EBU Input XLR balanced 110 ohms per phase USB Audio Input USB Type B confor...

Page 16: ...e 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 2012 Cambridge Audio Ltd AP24951 4 ...

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