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Table of Contents
- 1 Table of Contents
- 2 Introduction
- 3 Important Safety Instructions
- 4 Fcc Regulations
- 5 Rear Panel Connections
- 6 Front Panel Controls
- 7 Audio Output Connections
- 8 Digital Audio Input Connections
- 9 PC-USB Connections
- 10 Digital Audio Output Connections
- 11 Operating Instructions
- 12 Filters
- 13 Technical Specifications
- 14 Troubleshooting
- 15 Limited Warranty
- Download this manual
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Table of Contents
Related Manuals for Cambridge Audio azur DacMagic
Summary of Contents for Cambridge Audio azur DacMagic
- Page 1 azur DacMagic Upsampling digital to analog converter User’s manual...
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Page 2: Table Of Contents
Limited warranty............................ 27 This package should contain the following: 1 x Azur DacMagic (assembled), 1 x AC 12V 1.5A power adaptor, 4 x rubber feet, 1 x rubber base, 1 x USB ‘B-A’ type lead, 1 x user’s manual For further information about Cambridge Audio, our products, news, reviews and support,... -
Page 3: Introduction
Your DacMagic 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 range. Your dealer can also supply excellent quality Cambridge Audio interconnects to ensure your system realises its full potential. -
Page 4: Important Safety Instructions
Important safety instructions 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. - Page 5 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.
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Page 6: Fcc Regulations
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. - Page 7 azur DacMagic This unit must be installed on a sturdy, level surface. Do not place in a sealed area such as a bookcase or in a cabinet. Any space open at the back (such as a dedicated equipment rack) is fine, however. Do not place the unit on an unstable surface or shelf.
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Page 8: Rear Panel Connections
The DacMagic also features true balanced (XLR) outputs. This is a higher quality output that can reject noise and interference with equipment with balanced inputs. These balanced outputs are ideally suited for connection to the Cambridge Audio 840A or 840E amplifiers. XLR connectors should be wired as follows: Pin 1 –... - Page 9 DacMagic TOSLINK optical – use a high quality TOSLINK fibre-optic interconnect cable designed specifically for audio use. To achieve the best results we always recommend using high quality Cambridge Audio leads, which are guaranteed for life. Note: These outputs are pass-through only; there is no upsampling or any other modification done to the LPCM input signal.
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Page 10: Front Panel Controls
Front panel controls On / Off Source Filter / Phase Phase Incoming Sample Rate 44.1 88.2 Digital 1 Digital 2 Steep DacMagic Upsampling DAC Power On/Off Switches the unit between On and Off. Source Press to select between USB playback or Digital Inputs 1 and 2. The corresponding LED will light up to show which source has been selected. - Page 11 azur DacMagic Phase Indicates the output phase selected. Press and hold the Filter/Phase select button for approximately two seconds to select normal or inverted phase output. When the LED lights up, the phase is inverted by the DacMagic. If you suspect that your source material or amplifier, etc., is inverting the phase of the musical signal, you can use this function to re-invert the audio and regain absolute positive phase.
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Page 12: Audio Output Connections
Audio output connections Note: Do not turn on the unit until all connections have been made. DacMagic Balanced Output Digital Outputs Digital Inputs Digital Inputs Unbalanced USB In Output AC adaptor Amplifier Unbalanced Input Balanced Input Use either the unbalanced (RCA/Phono) or balanced (XLR) outputs of the DacMagic. The XLR output is slightly better in quality as it can reject interference and noise in the cable connection and is the preferred option if your amplifier features balanced XLR inputs. -
Page 13: Digital Audio Input Connections
azur DacMagic Digital audio input connections Note: Do not turn on the unit until all connections have been made. DacMagic Balanced Output Digital Outputs Digital Inputs Digital Inputs Unbalanced USB In Output AC adaptor CD/DVD player Digital Outputs Connect your digital source to Digital Input 1. Either S/P DIF co-axial or TOSLINK optical types can be used, each being of equal quality. -
Page 14: Pc-Usb Connections
PC-USB connections Note: Do not turn on the unit until all connections have been made. DacMagic Balanced Output Digital Outputs Digital Inputs Digital Inputs Unbalanced USB In Output AC adaptor USB ‘B–A’ type lead... - Page 15 azur DacMagic Connect a USB ‘B–A’ type lead (as illustrated at left) from the DacMagic’s USB input to one of the USB ports on the PC. This is the normal type of USB lead with an oblong plug at one end and a square plug at the other.
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Page 16: Digital Audio Output Connections
Digital audio output connections Note: Do not turn on the unit until all connections have been made. DacMagic Balanced Output Digital Outputs Digital Inputs Digital Inputs Unbalanced USB In Output AC adaptor Digital recorder Digital Inputs If it is desired to loop out the currently selected digital audio for recording on a suitable device (MD, CD-R, etc.), you can connect either an S/P DIF co-axial or TOSLINK optical cable to the digital outputs as shown, each type being of equal quality. -
Page 17: Operating Instructions
azur DacMagic Operating instructions The DacMagic can be sited in two different positions, as shown in the accompanying diagram. It can be placed horizontally by fitting the four small individual feet, or vertically by using the large rubber ‘foot’. Power on the DacMagic using the On/Off button on the front panel. After 4-5 seconds, the unit will unmute and the current Source and Filter type will be shown by the front panel LEDs. -
Page 18: Filters
Filters The DacMagic DSP has three different Filter functions: Linear Phase, Minimum Phase and Steep. All three filters are highly sophisticated audiophile topologies, optimised specifically for audio playback. In our opinion, these filters offer excellent sound quality but differ subtly in optimisation, hence we’ve made all three available to you. - Page 19 azur DacMagic The Linear Phase filter is a highly regarded audio filter offering low ripple in both the pass and stop bands, and what is known as constant group delay. Constant group delay means that audio signals of all frequencies are always delayed by the same amount when passing through the filter. All audio is therefore fully time-coherent at the output.
- Page 20 Minimum Phase Filter Frequency response -100 -120 -140 -160 -180 -200 frequency/FS (input sampling rate)
- Page 21 azur DacMagic The Minimum Phase filter is another highly regarded audio filter that offers even lower ripple in the pass and stop bands. Unlike the Linear Phase filter, group delay is not constant so some time- coherence is lost; however, phase shift is low and the particular benefit with this filter is that the impulse response exhibits no pre-ringing.
- Page 22 Steep Filter Frequency response Steep filter Linear phase filter -100 -120 -140 -160 -180 -200 frequency/FS (input sampling rate)
- Page 23 azur DacMagic Our Steep filter is a linear phase filter that has been optimised for stop band attenuation of close-in aliasing images. Here we have traded a little attenuation of the very highest frequency response (-2dB at 20kHz) and a little more pre- and post-ringing for a very steep attenuation just outside the pass band.
- Page 24 The following table shows the filter stop band attenuation: Linear Phase Minimum Phase Steep Roll-off at 20kHz -0.1dB -0.1dB -2dB Roll-off at 22kHz -10dB -10dB -82dB Ultimate roll-off 140dB 140dB 140dB We encourage you to experiment with the filters to determine which sound best to your ears and using your source equipment/programme material.
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Page 25: Technical Specifications
azur DacMagic Technical specifications D/A converters Dual Wolfson WM8740 24bit DACs Digital filter Texas Instruments TMS 320VC5501 DSP upsampling to 24bit 192kHz Analogue filter 2-Pole Dual Differential Bessel Double Virtual Earth Balanced Frequency response 20Hz to 20kHz (±0.1dB)* THD @ 1kHz 0dBFs <0.001% 24bit THD @ 1kHz -10dBFs <0.001%... -
Page 26: Troubleshooting
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. If you notice any errors please feel free to email us at: support@cambridgeaudio.com... -
Page 27: Limited Warranty
Cambridge Audio warrants this product 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. - Page 28 Cambridge Audio is a brand of Audio Partnership Plc Registered Office: Gallery Court, Hankey Place London SE1 4BB, United Kingdom Registered in England No. 2953313 www.cambridge-audio.com © 2008 Cambridge Audio Ltd...