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Cambridge Audio 840A V2 manual

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Table of contents for the manual

  • Page 1

    Y our music + our passion 840A V2 azur ENGLISH Class XD integrat ed amplifier User’s manual 2[...]

  • Page 2

    2 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 and prolong the life of the unit: 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5[...]

  • Page 3

    3 840A V2 azur ENGLISH V entilation IMPORT ANT - 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 , [...]

  • Page 4

    4 Thank you for purchasing this Azur 840A V2 Class XD Integrated Amplifier . W e hope that you will enjoy many years of listening pleasure from it. The 840A V2 features our unique proprietary amplifier topology; Class XD™, designed to eliminate crossover distortion at low signal levels. By actively displacing the crossover point this technology c[...]

  • Page 5

    R L R L Input 1 (Unbalanced) Input 1 Balanced Audio GND 5 840A V2 azur ENGLISH Rear panel connections Pow er On/Of f Switches the unit on and off. AC po wer socket Once you have completed all connections to the amplifier , plug the AC power cable into an appropriate mains socket then switch on. Y our amplifier is now ready for use. Loudspeaker t er[...]

  • Page 6

    Volu me Bass Treble Direct Mode Speaker A/B Phones Standby / On azur 840A Class XD Integrated Amplifier 6 F ront panel controls Standby/On Switches the unit between Standby mode (indicated by dim power LED) and On (indicated by bright power LED). Standby is a low power mode where the power consumption is less than 10 Watts. The unit should be left [...]

  • Page 7

    The 840A V2 is supplied with an Azur Navigator remote control that operates both this amplifier and Cambridge Audio Azur CD players. Insert the supplied AAA batteries to activate. The functions relevant to the amplifier are as follows: Standby/On Switches the amplifier between On and Standby mode. Numerical buttons 1-8 Press to change the input sou[...]

  • Page 8

    When designing our amplifiers we have tried to include features that allow you to connect your system in various ways. The inclusion of features such as Pre-Out and Speaker B connections mean that you can flexibly configure your system depending on your requirements. Basic connections The diagram below shows the basic connection of your amplifier t[...]

  • Page 9

    Balanced audio connections The diagram below shows how to connect the 840A V2 to the Azur 840C Upsampling CD player using the Balanced Audio inputs via three- pin XLR connectors. The 840A V2 can also be connected to non- Cambridge Audio sources with balanced outputs). Note: The Input 1 switch must be in the ‘Balanced’ position. Balanced connect[...]

  • Page 10

    10 Operating instructions The 840A V2 has a custom-made display on the front of the unit showing the current status and allowing you to access the 840A V2 System Configure menus. Here you can adjust the listening settings of the amplifier to personal preference. The menu system is easy to navigate and control, simply by using the input select butto[...]

  • Page 11

    11 840A V2 azur ENGLISH V olume display T o change the volume display from decibels (-95 to 0dB) to arbitrary volume units (0 to 96 units) select VOL DB in the System Configure menu. Press the input select button to turn off the volume in decibels. Press the Mode button to exit. F ront IR Used in conjunction with Custom Installation (C.I.) systems [...]

  • Page 12

    12 The 840A V2 features Incognito Ready/A- BUS Ready outputs, allowing multi-room capability . One or two amplified keypads can be plugged into the 840A V2 (using CA T-5/5e cable and RJ45 plugs) to provide multi-room audio in one or two secondary rooms or zones. The keypads are powered by an external PSU (also required) through the CA T-5/5e cables[...]

  • Page 13

    13 840A V2 azur The 840A V2 features a Control Bus input/output that allow un-modulated remote control commands (positive logic, TTL level) to be received electrically by the unit and looped to another unit if desired. These control commands are typically generated by custom installation (multi-room) systems or remote IR receiver systems. The Contr[...]

  • Page 14

    14 CAP5 - Fiv ewa y protection system Cambridge Audio has developed a proprietary protection system to ensure reliability and a long life for its amplifiers and the speakers they are connected to. Note: Due to the required sensitivity of the CAP5 system, it is possible that mains power disturbances can falsely trigger CAP5 in extreme situations. Th[...]

  • Page 15

    15 840A V2 azur Power Output 120W 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 Frequency R esponse 10 Hz - 50 kHz +/- 1 dB S/N ratio (ref 1W/8 Ohm) > 93 dB Input impedances Input 1 (balanced) 20 kOhm Inputs 2-7 20 kOhm T ape Input 20 kOhm Power Amp d[...]

  • Page 16

    AP21 393/4 © 2008 Cambridge Audio Ltd Cambridge Audio is a brand of A udio Par tnership Plc Regist ered Office: Galler y Cour t, Hankey Place London SE1 4BB, United Kingdom Regist ered in England No. 29533 13 www.cambridge-audio.com[...]