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Power Amplifier
User's manual
2
azur
651W
Your music + our passion

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Table of Contents
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Summary of Contents for Cambridge Audio azur 651W

  • Page 1 Power Amplifier User’s manual azur 651W Your music + our passion...
  • Page 2: Table Of Contents

    Information in this document has Troubleshooting ..................11 been carefully checked for accuracy at the time of printing; however, Cambridge Audio’s policy is one of continuous improvement, therefore design and specifications are subject to change without prior notice.
  • Page 3: Important Safety Instructions

    EC) Directives when used and installed according to this instruction 11. Only use attachments/accessories specified by the manufacturer. manual. For continued compliance only Cambridge Audio accessories should be used with this product and servicing must be referred to 12. Use with only the cart, stand, tripod, bracket, or qualified service personnel.
  • Page 4: Limited Warranty

    Cambridge Audio product, happens, switch off immediately, disconnect from the mains supply and it can be returned by your dealer to Cambridge Audio or an authorised contact your dealer for advice.
  • Page 5: Rear Panel Connections

    1. Power On/Off 7. Trigger In, Out/Thru Switches the unit on and off. If the 651W is not going to be used for long For Custom Install use or with preamps and with trigger outputs, the periods of time it should be turned off using this switch.
  • Page 6: Front Panel

    When the 651W detects clipping this LED will briefly flash. If the clipping reaches a dangerous amount that could damage the amplifier or If this LED is constantly on the 651W has detected a fault on either the attached speakers the unit will then go into protection.
  • Page 7: Connections

    651W Connections The 651W features both balanced (XLR) and unbalanced (RCA/Phono) output connections. For the best quality we recommend you use a balanced output with pre-amplifiers that feature this connection (such as our own Stream Magic 6). Before making any connections to loudspeakers, make sure all power is turned off and only use suitable interconnects (e.g. banana plugs). Ensure that the positive (+) and negative (-) connections are matched.
  • Page 8: Power Syncing (On/Standby Control)

    Connect the Control Bus Out from the 851E to the Control Bus In on the Trigger In/Out can be useful if the 651W (and indeed 851E) is desired to 651W. Continue the chain to other Azur models if it is required to sync be controlled by other equipment that features trigger outputs (Custom more units (refer to the 851E’s own manual for more information as this...
  • Page 9: Configuration Menu

    651W Configuration menu In Standby mode, press and hold the Standby/On button to enter the Configuration menu. The Left and Right ‘Output’ LED will start blinking to indicate that you are now in the Configuration menu. Pressing the Standby/On button will shuffle through these different setting options: Right ‘Protection’...
  • Page 10: Cap5: Five-Way Protection System

    CAP5: Five-way protection system 5. Intelligent clipping detection Cambridge Audio has developed a proprietary protection system to ensure reliability and long life of its amplifiers. This protection system Indicator – Clipping LED will flash if the audio output is at/above the comprises five main protection methods: clipping level.
  • Page 11: Technical Specifications

    There is weak bass or diffused stereo imaging Ensure that the loudspeakers are not wired out of phase. For more frequently asked questions (FAQs), technical advice and information on getting the most out of your 651W, please visit the Support section on Cambridge Audio’s website: www.cambridge-audio.com/support.php...
  • Page 12 Cambridge 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 © 2014 Cambridge Audio Ltd...

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