Cambridge Audio Azur 540P
Contents
1. hours per day This will allow the new components to settle down the sonic properties will improve over this time If you do not intend to use this unit for a long period of time unplug it from the mains socket To clean the unit wipe its case with a moist lint free cloth Do not use any cleaning fluids containing alcohol ammonia or abrasives Do not spray an aerosol at or near the amplifier These units are not user serviceable never attempt to repair disassemble or reconstruct the unit if there seems to be a problem A serious electric shock could result if this precautionary measure is ignored In the event of a problem or failure please contact your dealer Azur phono pre amplifier 3 Cambridge Audio REAR PANEL CONNECTIONS azur 540P MM Phono Pre Amplifier Cambridge Audio www cambridge audio couk Ground pi ee ERI o OO ly R Output L R MM L Use supplied PSU oniy ee This device complies with part 15 of FCC rules Labe 1oN Manufactured in an 1S09002 approved facility 540P MC input sockets 640P only If your turntable uses a moving coil cartridge connect outputs here 0 5 1mV with 100 ohm 220pF loading MM input sockets If your turntable uses a moving magnet cartridge connect outputs here 3 5mV with 47k ohm 220pF loading Turntable ground If your turntable has a separate grounding lead then connect here This provides shielding to the arm and the sensitive circuitry in2. is selected Ensure correct cartridge type has been selected MM or MC There is no sound on one channel Check that your speakers are properly connected Check all connections are secure There is a loud buzz or hum Check turntable or tone arm for ground and connection lead fault Ensure no connections are loose or defective Ensure that your turntable is not too close to the amplifier Volume is too loud quiet Check cartridge type matches input type If a MC cartridge is connected through the MM inputs volume will be very quiet and vica versa Note that it is possible to obtain high level MC cartridges which are designed for an MM input 6 Azur phono pre amplifier SPECIFICATIONS 540P Max power consumption 5W Gain E 1kHz 39dB Nominal output 300mV Sensitivity for 3 35mV nominal output THD 20Hz 20kHz lt 0 009 RIAA curve accuracy lt 0 65dB 25hz 20kHz Signal to noise ratio gt 85dB using Audio Precision RIAA 1 with grounded inputs Crosstalk 20kHz gt 76dB Dimensions HxWxD mm 46 x 215 x 133 inches 1 8 x 8 5 x 5 2 Weight kg 0 8 Ibs 1 8 640P MM SW 39dB 300mV 3 35mV lt 0 005 lt 0 3dB 20Hz 50kHz subsonic filter off gt 86dB gt 83dB 46 x 215 x 133 1 8 x 8 5 x 5 2 640P MC 5W 55dB 300mV 0 5mV lt 0 002 lt 0 3dB 20Hz 50kHz gt 72dB gt 69dB 46 x 215 x 133 1 8 x 8 5 x 5 2 LIMITED WARRANTY Cambridge Audio warrants this pr
3. azur 540P 640P Phono pre amplifer User s manual Cambridge Audio Cambridge Audio INTRODUCTION Thank you for purchasing this Cambridge Audio azur series phono pre amplifier It is the result of our ongoing research and development program for over three decades of producing high quality audio products We hope that you will appreciate the results and enjoy many years of listening pleasure About this phono pre amplifier The design of a high quality but cost effective phono pre amplifer presents a major challenge Providing first class performance on an unlimited budget is one matter achieving the same performance within tight price limits is quite another and requires all the expertise and experience that Cambridge Audio brings to its product design process We believe we have succeeded in our aim of creating a first class affordable product The 540P features a moving magnet stage whilst the 640P offers moving magnet and moving coil stages Both use discrete transistors for the all important input stages instead of the more common integrated circuits Both are designed to produce high gain and linearity without requiring massive amounts of negative feedback to achieve low distortion These new models also employ a single ended Class A gain stage with audiophile passive RIAA equalisation High quality components are used throughout such as 196 metal film resistors and close tolerance polypropylene capacit
4. l use or modification of or to any part of the product This Warranty does not cover damage due to improper operation maintenance or installation or attempted repair by anyone other than Cambridge Audio or a 540P 640P Phono pre amplifer Cambridge Audio dealer or authorised service agent which is authorised to do Cambridge Audio warranty work Any unauthorised repairs will void this Warranty This Warranty does not cover products sold AS IS or WITH ALL FAULTS REPAIRS OR REPLACEMENTS AS PROVIDED UNDER THIS WARRANTY ARE THE EXCLUSIVE REMEDY OF THE CONSUMER CAMBRIDGE AUDIO SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY IN THIS PRODUCT EXCEPT TO THE EXTENT PROHIBITED BY LAW THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES WHATSOEVER INCLUDING BUT NOT LIMITED TO THE WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PRACTICAL PURPOSE Some countries and US states do not allow the exclusion or limitation of incidental or consequential damages or implied warranties so the above exclusions may not apply to you This Warranty gives you specific legal rights and you may have other statutory rights which vary from state to state or country to country Azur phono pre amplifier 7 Cambridge Audio azur 540P 640P www cambridge audio co uk Part No AP14509 2
5. no phono level cable input 2RCA 2RCA 4 4 azur 540P Turntable MM Phono Pre Amplifier Cambridge Audio wwwcambridge auptioco pk Ground ae 2 Designed in London England 5 05A R Output L R MM OL Use supplied PSU oni E Manufactured in an This device complies with part 15 of FCC rules 1809002 approved facility 540P 540P 640P Phono pre amplifer only one of these connections To any line level From a From a input on you turntable turntable amplifier using with a with a phono cable moving moving 2RCA 2RCA magnet coil cartridge cartridge Must not be using using connected to a phono phono phono level cable cable input 2RCA 2RCA 2RCA 2RCA T M v azur 640P MM MC Phono Pre Amplifier Cambridge Audio www cambridge auflio co fik grae Designed in London England o i 15 Q ce a R Output L Subsonic Filter Cartridge Type R MM L R MC L Use supplied PSU only This device complies with part 15 of FCC rules Manufactured in an IS09002 approved facility 640P Azur phono pre amplifier 5 Cambridge Audio TROUBLESHOOTING There is no power Ensure the AC power cord is connected securely Ensure the plug is fully inserted and is switched on There is no sound Make sure the unit is plugged in Check that your turntable is properly connected Check that your speakers are properly connected Check all connections are secure and correct amplifier input
6. oduct to be free from defects in materials and workmanship subject to the terms set forth below Cambridge Audio will repair or replace at Cambridge Audio s option this product or any defective parts in this product Warranty periods may vary from country to country If in doubt consult your dealer and ensure that you retain proof of purchase To obtain warranty service please contact the Cambridge Audio authorised dealer from which you purchased this product If your dealer is not equipped to perform the repair of your Cambridge Audio product it can be returned by your dealer to Cambridge Audio or an authorised Cambridge Audio service agent You will need to ship this product in either its original packaging or packaging affording an equal degree of protection Proof of purchase in the form of a bill of sale or receipted invoice which is evidence that this product is within the warranty period must be presented to obtain warranty service This Warranty is invalid if a the factory applied serial number has been altered or removed from this product or b this product was not purchased from a Cambridge Audio authorised dealer You may call Cambridge Audio or your local country Cambridge Audio distributor to confirm that you have an unaltered serial number and or you purchased from a Cambridge Audio authorised dealer This Warranty does not cover cosmetic damage or damage due to acts of God accident misuse abuse negligence commercia
7. ors 2 Azur phono pre amplifier The 640P uses more exotic amplification circuitry to provide even lower distortion and noise plus the higher gain stage for MC cartridges In addition the 640P employs multi parallel capacitors to achieve exceptional RIAA accuracy of only 0 3dB up to 50kHz and features a defeatable subsonic filter Now we invite you to sit back relax and enjoy Ana iu Matthew Bramble Technical Director CONTENTS Introduction Important safety Information uunsesssensenssnnsnnnnnnnnnnnnonnnnnnonnnnnnnnnnnnnnnnnnnnnen Rear panel 20nneetiahs aa KK KK Eo TTS SIRENS nee Nk a o Specifications sse NS AG EJAJ Limited warranty 540P 640P Phono pre amplifer IMPORTANT SAFETY INSTRUCTIONS Please take a moment to read these notes before installing your Azur phono pre amplifier they will enable you to get the best performance and prolong the life of the product We advise you follow all instructions heed all warnings and keep the instructions for future reference This unit must not be exposed to dripping or splashing water or other liquids No objects filled with liquid such as vases shall be placed on the unit In the event switch off immediately disconnect from the mains supply and contact your dealer for advice Do not route the power cable so that it can be walked upon or damaged by other items near it Electronic audio components have a running in period of around a week if used several
8. the turntable Cartridge Type selector switch 640P only Match this switch to the cartridge type that your tunrtable uses MM for a moving magnet cartridge or MC for a moving coil cartridge 4 Azur phono pre amplifier Cambridge Audio wwwcambridge auaio co uk en en i Designed in London England aj i oj 5 pee R omm L ROMO L Manufactured in an ISO9002 approved facilty azur 640P MM MC Phono Pre Amplifier R Output L Subsonic Filter Cartridge Type Use supplied PSU only This device complies with part 15 of FCC rules 640P Subsonic Filter 640P only The subsonic filter cuts out very low frequency rumble caused by vinyl imperfections which can affect your system s performance Output sockets Use phono cables to connect to any line level input on your amplifier such as Aux NB Do not connect to a phono level input PSU socket Once you have completed all connections to the amplifier and turntable plug the PSU power cable into an appropriate mains socket The blue LED on the front panel will indicate that the power is on The unit has been designed to be left permanently powered Please note the 640P has an output relay which after power on takes 15 seconds to come out of mute NB Only use supplied power supply To any line level From a input on you turntable amplifier using with a phono cable moving 2RCA 2RCA magnet cartridge Must not be using connected to a pho
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