Assessments - 2, GPA: 3.5
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These version 2 models are part of our commitment to the on-ggoing development of the Azur range. We hope that you will appreciate the results and enjoy many years of listening pleasure from them. As with previous Azur CD players, both the 540C V2.0 and 640C V2.0 make use of a custom Cambridge Audio servo solution and transport, at the heart of which is a VLSI (Very Large Scale Integration) circuit which dynamically adjusts in real time the focusing, tracking and output level of the laser for the maximum retrieval of digital information. To ensure the very best performance there are also multiple separate power supplies for the D/A converter circuitry, audio filters, clocks and other stages, as well as extensive use of low impedance film capacitors. For the Version 2 models, we have significantly upgraded and improved the Digital to Analog stages as well as the anti-aliasing filters for even better sound quality and have added features that allow these products to be used in Custom Install applications. All this proprietary engineering is housed within our low resonance, acoustically damped chassis. An Azur Navigator remote control is also provided, giving full remote control of your CD player in an attractive and easy to use handset. A AAb bbo oou uut tt t tth hhe ee 5 554 440 00C CC V VV2 22. ..0 00 The 540C V2.0 now employs a WM8740 24 bit/192 kHz capable Digital to Analog converter from Wolfson Microelectronics. This very high quality part is coupled to a new three pole Double Virtual Earth Balanced filter design for very low noise and distortion. A new toroidal transformer is now fitted giving lower noise and less waveform distortion, for quieter PSU operation. Finally, to allow seamless integration with multi-room entertainment systems, a Control Bus input and output have been fitted, as has an IR emitter input. A AAb bbo oou uut tt t tth hhe ee 6 664 440 00C CC V VV2 22. ..0 00 The 640C V2.0 now employs a pair of WM8740 24 bit/192 kHz capable Digital to Analog converter from Wolfson Microelectronics implemented in a dual differential configuration. As each channel has its own DAC to process information, completely separate analog filter circuitry can be implemented. Moreover, because of the separation of left and right audio converters, the 640C V2.0 embraces a symmetrical layout. This ensures that both left and right channel circuitry operate identically, ensuring the 640C V2.0 delivers fantastic sound-staging and stereo imaging properties. The dual differential configuration also offers better signal-to-noise ratios and exceptionally low distortion characteristics in part from the use of a new version of our proprietary Double Virtual Earth Balanced filters. The 640C V2.0 features a new Four Pole Dual Differential Double Virtual Earth Balanced topology. This means the DAC for each channel features two fully balanced outputs each of which are then summed in a 3rd order virtual earth balanced filter stage, then a further 1st order balanced filter stage sums the balanced outputs of the earlier filter stages. This double balanced configuration largely rejects noise and distortion products present in the DACs and filters and provides an unprecedented level of performance. As with the 540C V2.0, a new toroidal transformer is now fitted giving lower noise and less waveform distortion for quieter PSU operation. Control Bus input/output and IR emitter input have also been fitted for Custom Install use. Your V2.0 CD player can only be as good as the system it is connected to. Please do not compromise on your amplifier, speakers or cabling. Naturally we particularly recommend amplification from the Cambridge Audio Azur range, which have been designed to the same exacting standards as our CD players. Your dealer can also supply excellent quality Cambridge Audio interconnects to ensure your system realises its full potential. Now we invite you to sit back, relax and enjoy! Matthew Bramble Technical Director Azur compact disc player 3 SAFETY PRECAUTIONS Checking the Power Supply Rating For your own safety please read the following instructions carefully before attempting to connect this unit to the mains. Check that the rear of your unit indicates the correct supply voltage. If your mains supply voltage is different, consult your dealer. This unit is designed to operate only on the supply voltage and type that is indicated on the rear panel of the unit. Connecting to other power sources may damage the unit. This equipment must be switched off when not in use and must not be used unless correctly earthed. To reduce the risk of electric shock, do not remove the unit's cover (or back). There are no user serviceable parts inside. Refer servicing to qualified service personnel. If the power cord is fitted with a moulded mains plug the unit must not be used if the plastic fuse carrier is not in place. Should you lose the fuse carrier the correct part must be reordered from your Cambridge Audio dealer. The lightning fl...
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