Cambridge Audio Azur 740A Contents, Introduction,
Future product releases
Software upgrades

Contents
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

Introduction

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.

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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.

Matthew Bramble Technical Director

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