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8 Cambridge Audio Contents Introduction Introduction ..................................................................................... ............ 2 Important safety instructions ..................................................................... 3 Limited warranty .... ......................................................................... ............. 4 Thank you for purchasing the Azur 851C Upsampling Compact Disc Player I DAC I Digital Preamp.
azur 851C Important safety instructions For your own safety please read the following important safety instructions carefully before attempting to connect this unit to the mains power supply. They will also enable you to get the best performance from and prolong the life of the unit: 1. Read these instructions.
8 Cambridge Audio Limited warranty Ventilation IMPORTANT - The unit will become 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 fall through any ventilation grille. If this happens, switch off immediately, disconnect from the mains supply and contact your dealer for advice. Positioning Choose the installation location carefully.
azur 851C Rear panel connections e Cambridge Audio @ ~~-· @ @§ ® ~@ ® 0 RS2J2C ® @ IREmnter =·~ -~~ @ ~M@ ot::::)}o ~ '" ~ ® ~ ~~ - CII ·· @ ~~ .. ~· ~ laoced Oi&~tall flOUi l @ @@ ~ I§] S/ POIF Co-• •ill l '"'' "* OP!•ti
8 Cambridge Audio Front panel controls 8 Cambridge Audio azur 8 51C CD Player / OAC / Digital Pre·Amp "'"' s....., Tt- ack Stoodb'f/On 0 @ • 0 0 0 ® ® 0 ® ® ~ 2 . . . 18 Tr -: ld: .-, Ti rne .... ... 0 0 0 0 4/ 19 • t- / 11 L 0 ® ®@ @ . /"'\ ,.,, VI'I~If~ Skip/Scan(~~ ~H) @ Standby/On @ Switches the 851C between Standby mode and On . Standby is a low power mode where the consumption is less than 0.5W. The 851C can be left in Standby mode when not in use.
azur 851C Remote control 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). The 851C is supplied with an Azur Navigator remote control handset that duplicates the front panel control functions and is also able to control Azur series amplifiers. The supplied AAA batteries must be fitted before the remore control can be used.
Cambridge Audio Operating instructions Once all the required input and output connections are made, the 851C can be switched on using its rear panel Power switch and front panel or handset Standby/On button. The amplifier to which the 851C is connected should also be switched on, the appropriate input selected , and its volume control set at the appropriate level. Repeating discs and tracks 4. . . 1::: Tr .
azur 851C Using digital inputs The 851C is fitted with four digital inputs for the connection of external digital sources. When a digital input is selected, digital audio from external devices will be up-sampled and delivered to the 851C analogue outputs. The digital outputs always output the incoming data without any processing.
8 Cambridge Audio Operating instructions cont. Advanced USB audio The 851C is both USB 2.0 (Hi-Speed) and USB 1.1 (Full-speed) USB port compatible. It should also work with the new USB 3.0 ports where the PC will simply treat the 851C as if it were a USB 2.0 or 1.1 device. The 851C also supports two USB Audio protocols (not the same as the port types themselves) USB Audio 1.0 (which works over USB 1.1 ports and supports up to 24-bit/96kHz) or USB Audio 2.0 (which requires a USB 2.
azur 851C Digital Pre-amp Mode The 851C can optionally be used as a digital pre-amp and connected directly to a suitable power-amp. The level at both the balanced XLR and single-ended Phonoj RCA outputs is affected and either connection type can be used, see diagram below. Before making this connection access the 851C's Digital Volume menu by pressing the Menu button then using the ~ and •~ buttons to move to the Digital Volume item.
8 Cambridge Audio Operating instructions cont. Filters Setup . - - - - - - - - - - M e n u structure--------~ \uto Off - A u t o - - USB --lnput--S/ W - Front IR Play ,: . On Off Class Version Naming l ,, On Audio2 Audoo 1 . oit D1~1tal ~~h.) Volume : Olf On Balance (Note: Orlyavailable if Oigitai \IQiumefs e nabled! . Off 5m 10m 15m The 851C menu structure has a variety of setup parameters that can be adjusted to suit both specific installation requirements and personal preferences.
851C azur Minimum Phase Filter Steep Filter Frequency response Frequency response 20 20 i I 1- . ---1-- 0 20 -20 -40 -----t---- iii -60 ----1-- "' -80 -~ ·100 ~ 120 3 -140 ·160 180 -200 -40 I ~ "0 I , i I iii I .t< '5"' -80 &, -100 "' :2' f-h-0. 1 0.2 -60 ~ 0 .3 120 -140 160 -180 -200 0.4 0.5 0.6 0. 7 0.8 0. 1 0.9 0.2 frequency/FS (in put sampling rate ) 0.3 0.4 0.5 0.6 0.
8 Cambridge Audio Operating instructions cont. Custom installation (C.I.) use Troubleshooting The 851C incorporates a Control Bus input and output that enables unmodulated handset commands (positive logic, TIL level) to be received electrically by the unit and looped to another unit if desired. These control commands are typically generated by custom installation (multiroom) systems or remote IR receiver systems. The Control Bus sockets are colour-coded orange.
azur 851C Technical specifications I All measurements are for 24-bit signals via the digital inputs so as not to be source material limited unless stated . D/A converters Dual Analog Devices AD1955 24-bit DACs Digital filter Analog Devices Black Fin ADSP-BF532 32-bit DSP performing 2nd Generation ATF2 up-sampling to 24-bit 384kHz Linear Phase, Minimum phase or Steep modes. Analog filter 2 Pole Fully Differential Linear Phase Bessel filter Frequency response 20Hz to 20kHz (+/ -0.
azur 851A/C Qu ick Sta rt How to configur e a basic system lnbetrie bnahme fiir Ungedu ldige Konfigurieren eines einfachen Systems D8marra ge rapide Comment configurer un systeme simple Guia rclpida Como configurar un sistema basico Avvio rapido Come configurare il sistema di base Snel starten Hoe u een basis systeem configureert Kom hurtigt i gang Sadan konfigureres et almindeligt system 6biCTpa~ ycTaHOB Ka KaK CKOHcpMrypM pOB3Tb OCHOBHYK> K3H3IlbHYK> CMCTeMy 8 Cambridge Audio
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Set-up 1 Einrichtung lnstalaci6n Configureren Installation lmpostazioni Opscetning 8 Oo [iij]on Digital Outputs Cambridge Audio Desi!>"ed ~nd enginewer ....., nsu m ption: 40W www.cambridge--audio.com Powe r Ra ting: 220-230VAC-50/ 6ncl~:urfdi<'lAniSO"'IO!oppr~To
851A 851C Class XD Integrated Amplifier Upsampling Compact Disc Player 2 ~===t! ·0· 6,6 ~0- ~ -~~~, m ~ ~~/ d ~-c=--~ 3 8 CamlxidgeAudio " """' $QUfCE 2' • ~ >Oe<"'@ 50UPCES @ SQU~CE 3 SOUP CE 4 4 '&'& SOUPCI 1 VIJ LU ME FH 1~ @ @ ~- ·- - g ©© 0 8 Cambridge lwdio " Glllli!J 0 0 0 0 0 '""' & Cambridge Audio = @ @ ·~@0 @ @ @COO 5 8 To get the best performance from your Azur 851A/851C please read the manual for more information. No deje de leer el manual.
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