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Cambridge Audio 640A - page 1
azur 540A/640A V2.0 Integrat ed amplifier User’s manual ...
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Cambridge Audio 640A - page 2
2 Azur integrat ed amplifier Introduction .................................................................................................3 Safety precautions ......................................................................................4 Important safety instructions .....................................................................5 R ...
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Cambridge Audio 640A - page 3
540A/640A V2.0 Integrat ed am plifier Azur integrat ed amplifier 3 Thank you for purchasing this Cambridge Audio Azur range amplifier. These version 2 models are part of our commitment to the on-going development of the Azur range. We hope that you will appreciate the results and enjoy many years of listening pleasure from them. For these v ersion ...
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Cambridge Audio 640A - page 4
4 Azur integrat ed amplifier Checking the Power Supply Rating For your o wn safety please read the f ollowing instructions carefully before att empting to connect this unit to the mains. Check that the rear of your unit indicates the correct supply v oltage. If your mains supply voltage is different, consult your dealer . This unit is designed to o ...
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Cambridge Audio 640A - page 5
540A/640A V2.0 Integrat ed am plifier Azur integrat ed amplifier 5 IMPORT ANT SAFET Y INSTRUCTIONS Please take a moment t o read these notes bef ore installing your Azur amplifier , they will enable you to get the best performance and prolong the life of the pr oduct. We advise y ou follow all instructions, heed all warnings and k eep the instructi ...
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Cambridge Audio 640A - page 6
6 Azur integrat ed amplifier Power On/Off Switches the unit on and off. Mains voltage selector switch Switches the mains voltage between 1 15V and 230V . For use by installer/dealer only . AC power socket Once you ha ve completed all connections t o the amplifier , plug the AC power cable int o an appropriate mains sock et. Your am plifier is now r ...
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Cambridge Audio 640A - page 7
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 7 Multi-room PSU - Connect an Incogntio PS5 to supply power t o the connected multi- room k eypads/speakers. Ke ypad 1/2 - Connect one or tw o Incogntio A-BUS KP10 ke ypads (or other A-BUS compatible ke ypads) using CA T5/5e cable. Incognito AS1 0 Active Ceiling Speak ers can also be c ...
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Cambridge Audio 640A - page 8
8 Azur integrat ed amplifier When designing our amplifiers we ha ve tried to include f eatures that allow you t o connect your system in v arious ways. The inclusion of features such as Pre-Out and Speak er B connections mean that you can flexibly configure your syst em depending on your requirements. The follo wing diagrams are designed to make co ...
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Cambridge Audio 640A - page 9
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 9 Speaker B connections The Speaker B connections on the back of the amplifier allo w for a second set of speakers to be used (ie speak er s located in ano ther room). The Speak er B button on the front panel allo ws this second set of speakers t o be switched on and of f. Note: When u ...
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Cambridge Audio 640A - page 10
10 Azur integrated am plifier Standby/On Switches the unit between Standby mode (indicat ed by dim pow er LED) and On (indicated b y bright power LED). Standby is a lo w power mode where the power consum ption is less than 10 W atts. The unit should be left in Standby mode when not in use. Infrared sensor Receiv es IR commands from the supplied Azu ...
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Cambridge Audio 640A - page 11
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 11 Direct This control giv es the audio signal a more direct path to the power amplifier stage of your amplifier , bypassing the tone contr ol circuits for the purest possible sound quality . Bass and Treble These controls allo w subtle adjustments to the tonal balance of the sound. In ...
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Cambridge Audio 640A - page 12
12 Azur integrat ed amplifier REMOTE CONTROL The 540A/640A V2.0 is supplied with an Azur Navigat or remote contr ol that operates both this amplifier and Cambridge Audio Azur range CD play ers. Inser t the supplied AAA batteries to activ ate. The functions relevant t o the amplifier are as follo ws: Standby/On Switches the amplifier between On and ...
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Cambridge Audio 640A - page 13
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 13 MUL TI-ROOM The Azur V2.0 amplifiers feature Incognit o Ready TM / A-BUS TM Ready outputs, allowing multi-r oom capability. One or tw o amplified ke ypads (and an ext ernal PSU power supply) can be plugged into the am plifier (using Cat5/5e cable and RJ45 plugs) to pr ovide multi-ro ...
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Cambridge Audio 640A - page 14
14 Azur integrat ed amplifier amplifier is working harder . If the amplifier is mounted in a cabinet or the ventilation slots are obstruct ed the over t emperature detection ma y activate/reactiv ate after a shor t listening time. Remedy - User relat ed fault. The internal tem perature of the output transistors has reached the ov er temperature lim ...
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Cambridge Audio 640A - page 15
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 15 4. Short circuit detection Indicator - Unit has switched off during operation, prot ection LED flashes constantly in bursts of four . Description - During pow er up from Standby CAP5 performs a check on the loudspeaker t erminals to see if a short across the terminals has been accid ...
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Cambridge Audio 640A - page 16
16 Azur integrated am plifier There is no power Ensure the AC po wer cord is connect ed securely . Ensure the plug is fully inser ted int o the wall socket and is switched on. Check fuse in the mains plug or adaptor . There is no sound Make sure the unit is not in Standb y mode. Check that source component is pr operly connected. Check that 'T ...
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Cambridge Audio 640A - page 17
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 17 540A V2.0 Power output 60 watts (into 8 Ω ) 90 watts (into 4 Ω ) THD (unweighted) <0.002% @ 1kHz, of rated pow er <0.0 70% 20Hz - 20kHz, of rated power <0.025% 20Hz - 20kHz @ 1 0w Frequency response (-1dB) 5Hz - 50kHz S/N ratio (ref 1w) >85dB Input impedances 4 7kohm ...
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Cambridge Audio 640A - page 18
Cambridge Audio warrants this pr oduct to be free fr om defects in materials and workmanship (subject t o the terms set f or th below). Cambridge Audio will repair or replace (at Cambridge A udio's option) this product or an y defective parts in this product. W arranty periods may vary from country to country. If in doubt consult your dealer a ...
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Cambridge Audio 640A - page 19
540A/640A V2.0 Integrat ed amplifier Azur integrat ed amplifier 19 This guide is designed to mak e installing and using this product as easy as possible. Information in this document has been carefully check ed for accuracy at the time of printing; howe ver , Cambridge Audio's policy is one of continuous impro vement, therefore design and spec ...
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Cambridge Audio 640A - page 20
azur 540A/640A V2.0 Par t No. AP183 7 6/2 www .cambridge-audio.com ...
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