Cambridgeaudio Azur 740A Owners Manual
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Extracted text from cambridgeaudio Azur 740A Owners Manual (Ocr-read)
Page 1
Thank you for purchasing this Azur 740A Integrated Amplifier. We hope that you will enjoy many years of listening pleasure from it. The 740A is based on our award-winning amplifier topology as seen in our 540A and 640A models, further developed and enhanced for this new higher end model as part of our on-going development programme. The 740A features three separate transformer secondaries for the left and right power amp channels and preamp, with separate rectifiers and PSU's allowing dual mono operation of the left and right power amplifiers. Two pairs of very high current output transistors per channel allow the 740A to drive almost any speaker with ease and ensure excellent bass response and dynamic control. Other features include the use of a very high precision silicon gate volume / balance control rather than the more common potentiometer. Volume is controllable in 1 dB steps over most of the range, giving very fine control, an accurate logarithmic law and superbly accurate channel balance. Software control of all functions allows gain trim to be applied to any input and other functions. The 740A also includes support for multi-room use. By plugging in one or two external Cambridge Audio Incognito keypads (or active speakers) and a power supply unit your amplifier can become the hub of a simple multi-room system. In addition, Control Bus Input/Output and IR Emitter Input are provided to make it easy to integrate this unit into Custom Installation systems if desired. An Azur Navigator remote control is also provided, giving full remote control of your amplifier in an attractive and easy to use handset. Your amplifier can only be as good as the system it is connected to. Please do not compromise on your source equipment, speakers or cabling. Naturally we particularly recommend models from the Cambridge Audio Azur range. These have been designed to the same exacting standards as this amplifier. Your dealer can also supply excellent quality Cambridge Audio interconnects to ensure your system realises its full potential. Thanks for taking the time to read this manual; we do recommend you keep it for future reference. Matthew Bramble Technical Director 2 Contents Introduction Introduction .................................................................................................2 Limited warranty..........................................................................................3 Safety precautions ......................................................................................3 Important safety instructions .....................................................................4 Rear panel connections..............................................................................5 Front panel controls ...................................................................................6 Remote control ............................................................................................7 iPod compatibility ........................................................................................7 Connections ................................................................................................8 Operating instructions ................................................................................9 Amplifier setup.......................................................................................9-10 Multi-Room connections...........................................................................11 Custom installation use............................................................................11 CAP5 protection system ...........................................................................12 Troubleshooting.........................................................................................13 Technical Specifications ...........................................................................13 Make sure you register your purchase. Visit: www.cambridgeaudio.com/sts By registering, youll be the first to know about: Future product releasesSoftware upgradesNews, events and exclusive offers plus competitions! This guide is designed to make installing and using this product as easy as possible. Information in this document has 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. This document contains proprietary information protected by copyright. All rights are reserved. No part of this manual may be reproduced by any mechanical, electronic or other means, in any form, without prior written permission of the manufacturer. All trademarks and registered trademarks are the property of their respective owners. Incognito and Incognito Ready are trademarks of Cambridge Audio Ltd. All rights reserved. © Copyright Cambridge Audio Ltd 2008 A-BUS and A-BUS Ready are registered trademarks of LeisureTech Electronics Pty Ltd Australia. iPod and Apple are trademarks of Apple Inc., registered in the U.S. and other countries.
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740A azur 3 ENGLISH 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. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use with only the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as the power-supply cord or plug having been damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. WARNING – To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The unit is of Class 1 construction and must be connected 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 from the rear of the unit) possible. Where the mains plug is used as the disconnect device, the disconnect device shall remain readily operable. Only use the mains cord supplied with this unit. Please ensure there is ample ventilation. We recommend that you do not place the unit in an enclosed space; if you wish to place the unit on a shelf, use the top shelf to allow maximum ventilation. Do not put any objects on top of this unit. Do not situate it on a rug or other soft surface and do not obstruct any air inlets or outlet grilles. Do not cover the ventilation grilles with items 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. The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the service literature relevant to this appliance. WEEE symbol The crossed-out wheeled bin is the European Union symbol for indicating separate collection for electrical and electronic equipment. This product contains electrical and electronic equipment which should be reused, recycled or recovered and should not be disposed of with unsorted regular waste. Please return the unit or contact the authorised dealer from whom you purchased this product for more information. CE mark This product complies with European Low Voltage (2006/95/EC) and Electromagnetic Compatibility (89/336/EEC) Directives when used and installed according to this instruction manual. For continued compliance only Cambridge Audio accessories should be used with this product and servicing must be referred to qualified service personnel. C-Tick mark This product meets the Australian Communications Authoritys Radio communications and EMC requirements. Ross Test Stamp This product meets Russian electronic safety approvals. FCC regulations NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER AUTHORITY TO OPERATE THE EQUIPMENT. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Re-orient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. Important safety instructions