Debussy DAC User Manual v2.0x
Contents
1. gt Control Panel gt System gt Device Manager gt Sound Video and Game Controllers Double click on dCS Debussy go to Details and select Hardware Ids in the Property box The software issue will appear among the text in the Values box prefixed by REV_ For example REV_0100 indicates software issue 1 00 Mac OSX Open Finder Menu Bar gt Go gt Utilities gt System Profiler Now go to Hardware gt USB gt USB Bus gt dCS Debussy The revision will be the software issue Updating the Software The CD Update feature allows you to load new software into your system from any STANDARD CD player or transport Note that some non Red Book CD transports change the digital data and cannot be used to download new software The unit may be updated by streaming the update file via the USB interface from a computer set to give bit perfect 16 bit output The update procedure is deliberately not described here When an update is available please follow the instructions supplied with the update disc carefully If the selected input is NOT receiving 44 1kS s data CD Updating is not possible and the update will not start Use the front panel controls during an update as the remote control may not operate If you start an update unintentionally or when the system is not correctly set up switch off the unit at the back panel switch wait 10 seconds then switch on again Filename Debussy DAC Manual v2_0x doc Page 24 English version dCS Debus2. 192 122 192 Figure 4 The Sample Rate LEDs operating as the Volume indicator e Setting the Output Level switch on the back panel to 6V usually gives best results but this depends on the rest of your system and the size of your room If the setting is 2V and the volume is still set below 20dB with most music ask your dealer about trying some passive attenuators Proceed to Step 4 Filename Debussy DAC Manual v2_0x doc Page 13 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 STEP 4 Using a System Clock So far when using the PCM inputs the system has been set up to lock to the clock generated by the source This is the simplest arrangement but it does not give the best sonic performance due to clock jitter If the source equipment can be locked to word clock or the USB interface is selected the performance can be improved further by adding a Paganini Clock to the system as shown in the example below Analogue outputs to amplifier Fes RE OE nN re Fe DIGITAL PCN 0 oc CELL EG EERE mme imen tee ae ae a ae Le ee maane id Se Dome amea Hate A omy AED CAE N Lt ow Qiza Figure 5 Using the Paganini Transport Clock and Debussy DAC together e Connect two of the Clock s W Clk Outputs to the W CIk Inputs of the Transport and DAC e Use the Clock s Frequency button to set the outputs to 44 1kHz to suit the CD Transport The system will re lock and un mute Pl
3. little and slide the the flat end against the spring plate into place and securing the back back plate off and pressing the battery into the tighten the screw plate slot so that the end makes contact with the stud Failure to fit the batteries correctly can damage your Remote Control Such damage is not covered by the warranty Please dispose of used batteries properly at a waste disposal site not in the household waste Filename Debussy DAC Manual v2_0x doc Page 7 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 STEP 1 Selecting a Digital Input Switch on the source equipment If appropriate load a disk tape and set the machine in PLAY mode to ensure it is generating a digital audio data stream Choose one or more of the following sections Connecting the USB interface There are two USB Audio classes one of which must be set during system set up The DAC is shipped set to USB Audio Class 2 Audio Class 1 The interface operates without special drivers at up to 96kS s To select Class 1 switch off completely not just Sleep wait 10 seconds then hold down the Input and Vol buttons and switch on Keep the 2 buttons pressed until all the front panel LEDs flash continually Release the buttons and wait for the LEDs to stop flashing The unit is now in Class 1 mode Audio Class 2 The interface operates at up to 192kS s For Mac OSX version 10 6 Snow Leopard or later is required F
4. preamplifier power amplifier has unbalanced inputs even if the inputs are on XLR connectors please use the Unbalanced Outputs instead Output Level Switch The O P Level switch P sets all outputs to either 2V rms or 6V rms at full scale When you set up your system choose the Output Level setting that gives a comfortable listening level with the Volume set between 10dB and 20dB The difference between the two settings is 9 5dB AES Digital Inputs The AES1 and AES2 inputs Q can be used individually at 32 44 1 48 88 2 or 96kS s If both inputs are connected to a Dual AES source and AES 1 AES 2 is selected they can be used together as a Dual AES pair at 88 2 96 176 4 or 192kS s For Dual AES mode to work correctly the source must actually generate Dual AES data not just single AES on 2 connectors which gives a mono output Dual AES is available from dCS Upsamplers and some sound cards SPDIF Digital Inputs The unit features 2 co ax SPDIF inputs R on RCA phono SPDIF 1 and BNC connectors SPDIF 2 Each input will accept data at 32 44 1 48 88 2 or 96kS s Word Clock Input The W Clock In connector S will accept standard word clock from the source equipment or a master clock at 32 44 1 48 88 2 or 96kHz The clock frequency MUST be an exact multiple of the data rate see page 16 otherwise the system will not lock to word clock The source MUST be locked to the same clock unless the USB interface is se
5. which gives a mono output Analogue outputs to amplifier mxsnctD ANALOGUE OUT Coal wor aX eee bbo eee JCS Medal verdes Eger 005 ist US mnyang 7577135 Ut Chesed Saton Watie CR 1AP VN Ties protect tesigedS corey wih 85415 DELON ICES 6 TORT CHR ubcnapte J GITAL ROM OUTPUTS Figure 3 Connecting the Dual AES interface e Connect the AES1 or AES A output on your source equipment to the AES1 input on the DAC s rear panel and the AES2 or AES B output to the AES2 input using two XLR cables Ensure the cables are not swapped e Press the Input button repeatedly until the AES 1 and AES 2 input indicators illuminate If the source is active the DAC will lock to the source and the appropriate sample rate indicator will illuminate Proceed to Step 3 Filename Debussy DAC Manual v2_0x doc Page 10 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 STEP 2 Setting up the USB source If you do not want to use a USB source go to STEP 3 This section gives basic advice for setting up the computer For more detailed advice and more advanced options please visit www dcsltd co uk page support and download the current version of the dCS Guide to Computer Audio To load the Windows drivers for USB Class 2 e If ASIO4ALL is loaded on your computer please uninstall it otherwise the dCS drivers will not work correctly Make sure the DAC is set to USB
6. 10Hz to 15kHz Fs 44 1 or 48kS s 0 1dB 10Hz to 20kHz Fs 88 2 or 96kS s 0 1dB 10Hz to 20kHz 3dB gt 38kHz Fs 176 4 or 192kS s 0 1dB 10Hz to 20kHz 3dB gt 67kHz Better than 110dBO 20Hz 20kHz unweighted Better than 100dBO 20Hz 20kHz Better than 80dBO 20Hz 20kHz 2V rms or 6V rms on all outputs for a full scale input set by the Output Level switch on the rear panel 1 stereo pair on 2x 3 pin male XLR connectors pin 2 hot pin 3 cold These outputs are electronically balanced and floating the signal balance ratio at 1kHz is better than 40dB Output impedance is 3Q maximum load is 600Q a load of 10kKQ 100kQ or more is recommended 1 stereo pair on 2x RCA Phono connectors Output impedance is 52Q maximum load is 600Q a load of 10KQ 100kQ is recommended 445mm 17 6 W x 392mm 15 5 D x 65mm 2 6 H including feet Allow extra depth for cable connectors Allow space for air flow around the unit Weight 8 8kg 19 4lbs Internally set to either 100 115 120 220 or 230 240V A C 49 62Hz Power consumption 19W typical 25W maximum These specifications are subject to change without notice Filename Debussy DAC Manual v2_0x doc Page 21 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 MAINTENANCE AND SUPPORT Service and Maintenance dCS audio products are designed not to need regular maintenance and contain no user serviceable parts apart fro
7. Class 2 otherwise the driver installation will fail Power up the DAC and the computer Load the dCS USB Audio Class 2 drivers disc for Windows into the computer s CD drive If the installation does not start automatically select Run setup exe Follow the on screen prompts When prompted connect the DAC to the computer s USB port Wait until installation is complete then remove the drivers disc and re start the computer If you connect a Debussy DAC set for USB Audio Class 2 to a Windows computer without first loading the drivers the interface will not work and the computer will display the warning message Device cannot start A word about Music Playing Software There are countless programs that can play music on Windows PC and Apple Mac OSX systems Unfortunately not all of them present the data completely unprocessed to the USB ports For example Windows Media Player re samples all data to 24 bits albeit at the original sample rate while iTunes rate converts data as necessary to the output sample rate set in the OSX Audio set up panel With such a proliferation of playing software and with updates being issued daily it is impossible for dCS to be fully up to date with the behaviour and performance of all programs If you have questions or problems we would urge you to take them up with your software vendor What we will say is that different programs operate very differently and it is well worth finding out exact
8. ES 2 AES1 AES 2 Dual AES SPDIF 1 SPDIF 2 USB etc Word Clock Indicator The W Clock indicator H will be off unless activity is detected at the W Clock In connector If a word clock signal is detected and it is at a frequency compatible with the audio data sample rate the DAC will lock to word clock and the indicator will illuminate The table below shows compatible combinations Word Clock Frequency Data Sample Rate 44 1 or 88 2kHz 44 1 88 2 or 176 4kS s 32 48 or 96kHz 32 48 96 or 192kS s If activity is detected but the signal is not recognisable or is at the wrong frequency the unit will lock to the data stream instead and the W Clock indicator will flash to warn of this Remote Control Receiver The unit accepts IR commands in RC5 format either from a dCS remote or a programmable remote which has been loaded with the correct command codes Aim the remote control handset towards the receiver I for best sensitivity If you wish to program your own remote the command codes are as follows Use these command codes only if you agree to be bound by this DISCLAIMER dCS cannot accept responsibility for problems of any kind that may arise from the use of these remote control codes cannot offer technical support in its use to installers or customers and cannot undertake to add extra features If you need assistance please consult an experienced A V installer All codes are in decimal For the DAC func
9. The OFF button will only operate if the system is in sleep mode Filename Debussy DAC Manual v2_0x doc Page 20 English version dCS Debussy DAC User Manual Software Issue 2 0x SPECIFICATION Converter type Digital inputs Clocking Frequency response set to Sharp Filter Residual noise Spurious responses L R crosstalk Output levels Balanced outputs Unbalanced outputs Size and weight Power requirements May 2011 5 bit 2 822 or 3 07MS s oversampled dCS Ring DAC topology All data is oversampled to this format before conversion to analogue USB interface on a B type connector will accept up to 24 bit PCM at e 44 1 48 88 2 or 96kS s when set to Class 1 no drivers required or e 44 1 48 88 2 96 176 4 or 192kS s when set to Class 2 no drivers are required for OSX 10 6 drivers are required for Windows The USB interface operates in asynchronous USB mode 2x AES EBU on 3 pin female XLR connectors Each will accept PCM at 32 44 1 48 88 2 or 96kS s up to 24 bits OR as a Dual AES pair at 88 2 96 176 4 or 192kS s up to 24 bits 2x SPDIF on 1x RCA Phono and 1x BNC connectors Each will accept PCM at 32 44 1 48 88 2 or 96kS s up to 24 bits Word Clock Input on 1x BNC connector accepts standard word clock at 32 44 1 48 88 2 or 96kHz The data rate can be the same as the clock rate or an exact multiple 0 5x 1x 2x 4x of the clock rate Sensitive to TTL levels Fs 32kS s 0 1 0 5dB
10. and set the Default Format to 24 bits at the same sample rate as the file Mac OSX Once you have connected the Debussy DAC and switched it on open Finder click on the Go tab and select Utilities In the Utilities panel select Audio MIDI Setup and click on the Audio Devices tab in the Audio MIDI setup panel Select dCS Debussy from the drop down list in System Output You can also set dCS Debussy as the default output from the same panel For best results set the Sample Rate to be the same as that of the file Some streaming programs give better results with a different set up Please refer to the dCS Guide to Computer Audio for more specific information Go to STEP 3 Filename Debussy DAC Manual v2_0x doc Page 12 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 STEP 3 Connecting the Analogue Outputs The output level relays can flip over in transit resulting in one or both channels having a lower or higher level than expected This can be corrected by changing the O P Level switch setting then changing back The balanced and unbalanced outputs are separately buffered you can connect both to different amplifiers at the same time if required Choose one of the following two sections Using a preamplifier e Set the preamplifier volume control to minimum e Connect either the balanced XLR connectors or unbalanced RCA phono connectors outputs on the DAC s rear panel to matching line leve
11. dCS Debussy DAC Stereo Digital to Analogue Converter with asynchronous USB Interface User Manual Software Release 2 0x May 2011 Data Conversion Systems Ltd 2010 2011 Price UK 8 00 Euro 12 00 All rights reserved No part of this publication may be reproduced stored in or introduced into a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of dCS Any person who does any unauthorised act in relation to this publication may be liable to criminal prosecution and civil claims for damages Information contained in this manual is subject to change without notice and whilst it is checked for accuracy no liabilities can be accepted for errors ACS is Data Conversion Systems Ltd Company registered in England No 2072115 dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Filename Debussy DAC Manual v2_0x doc Page 2 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Contents Using the dCS Debussy DAC for the first titme cccecccccseeeeneeeeeeeeeeneesesneeeeeeee seas saseaeenseeeeeeeeeseeeseeeeeeeeaes 4 What s in the box 4 Positioning the unit 4 Safety Notice 5 Step by Step GUIde o aaa a aeaa a aa a aaae anced eee ci Aa aaaea a ea Aaa aa Aa aaaea an aai aaa 6 Preliminaries 6 Fitting the Remote Control handset batteries 7 STEP 1 Selecting a Digital Input 8 Connecti
12. ease consult the Clock manual for more information on using a System Clock The next step is crucial sit back and enjoy the music Filename Debussy DAC Manual v2_0x doc Page 14 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 FRONT PANEL Figure 6 Front panel POWER Button To switch on ensure the rear panel switch is set to and press the POWER button A on the front panel once The LED to the left of the POWER button will illuminate Note that the unit cannot be turned on by remote control To set the unit to sleep mode press the POWER button once The LED to the left of the button will dim the other LEDs will turn off and the analogue outputs will mute but the unit will remain close to running temperature Press the button again to return to normal operation To switch off completely hold down the POWER button for at least 3 seconds then release it VOL Buttons The digital volume control covers a range from 60dBO to OdBO in 0 5dB steps Press or hold down the Vol button B to increase the volume press or hold down the Vol button C to reduce the volume The Ring DAC circuit has linearity to spare but for best results set up your system to use a volume setting between 20dB and OdB for normal listening While the volume is being adjusted the Sample Rate LEDs K indicate the approximate volume setting in 10dB steps MUTE Button Use the MUTE button D to mute the analogue outp
13. er or software vendor for advice Manufactured by Data Conversion Systems Ltd Unit 1 Buckingway Business Park Anderson Road Swavesey Cambridgeshire CB24 4AE UK www dcsltd co uk This user manual may be downloaded free of charge from our web site A bound copy of this manual may be ordered from dCs Filename Debussy DAC Manual v2_0x doc Page 25 English version
14. iginal owner Warranty Exclusions The Warranty does not cover wear and tear The Warranty on this product will be void if the product is misused in any way any unauthorised modifications or repairs are carried out the product is not used in accordance with the Operating Conditions stated in this manual the product is serviced or repaired other than by dCS or our authorised service agents the product is operated without a mains earth or ground connection the unit is returned inadequately packed dCS reserve the right to apply a service charge if a product returned for warranty repair is found to be operating correctly or if a product is returned without a returns number being issued This warranty covers parts and labour only it does not cover shipping charges or tax duty Our dealers or distributors are NOT authorised to extend the terms of this warranty dCS cannot accept responsibility for any attempt to do so Products re sold by dCS on a used basis may be subject to reduced warranty terms Obtaining Service Should you encounter a problem contact your authorised dCS dealer for advice quoting the model the serial number software version number and giving a detailed description of the fault Your dealer will advise you fully on actions that need to be taken When returning a unit the original packaging should be used to avoid transit damage Replacement packaging sets may be purchased from dCs During the War
15. ineering process from the raw solid material to the finished piece To remove loose dust or finger marks from the case we recommend that you use a clean dry lint free cloth To restore the finish on the front panel we recommend applying small quantities of a lanolin based cleaner using a clean dry lint free cloth and then wiping off Do not allow lanolin to collect around the buttons Small amounts of glass cleaner containing ammonia may be used to clean other surfaces but avoid spraying onto the connector contacts Filename Debussy DAC Manual v2_0x doc Page 22 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Limited Warranty General dCS warrants this product against defects in materials and workmanship for a period of 3 years from the date the unit was originally shipped from dCS During the warranty period dCS will repair or at our absolute discretion replace a faulty product Warranty repairs must only be carried out by dCS or our authorised service agents Please contact your dealer if your unit requires service Your dealer should have completed on your behalf an Owner Registration form at the time of sale and returned it to dCS On receipt of the Owner Registration form dCS will add your contact details to our customer database dCS will use this information for warranty purposes only we will not contact you directly for reasons relating to sales and marketing This warranty applies to the or
16. ing digital data the indicator for the detected sample rate will illuminate When the volume is adjusted the function of these indicators changes to show the volume setting in 10dB steps see the table below 5 seconds after the last volume adjustment they display the sample rate once more 50 5 40 5 30 5 20 5 10 5 0 5 0dB 59 5dB 50dB 40dB 30dB 20dB 10dB oB O2 O 32 O 32 O 32 O 32 O 32 O 32 e 10B 441 O 444 O 444 O 444 O 444 O 444 Oa Os 20B 48 O 4 O 48 O 48 O 48 e 4 O42 O 4 30dB 882 O 882 O 882 O 882 82 382 82 382 40B O 9 O e W Ox 50dB O 1764 1764 1764 Wea Wea Wea GH 174 Wea 60dcB 192 122 192 192 122 192 122 192 Figure 7 The Volume indicator ranges 60dB Factory Reset To reset the unit to factory defaults hold down the Vol and Vol buttons together at power on until ALL the LEDs start flashing then release both buttons This will reset the unit as follows Volume 30dB Phase Normal Mute Not muted Input USB Filter Sharp filter Filename Debussy DAC Manual v2_0x doc Page 17 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 REAR PANEL Figure 8 Rear Panel Analogue Outputs The unit features separately buffered Balanced Outputs N on XLR connectors and Unbalanced Outputs O on RCA connectors The Balanced Outputs should be connected to true balanced inputs only If your
17. l inputs on your preamplifier probably labelled CD or AUX e Hold down the DAC s Vol button for 10 seconds to set the Volume to maximum This is indicated by all 7 Sample Rate LEDs illuminating for 5 seconds see Figure 4 e While playing some music increase the preamplifier volume until the music is at the desired level e lf the preamplifier volume setting for a comfortable listening level is too high or too low you may need to change the setting of the O P Level switch on the back panel Setting the O P Level to 6V can cause some preamplifiers to overload and distort For this reason we recommend the 2V setting if a preamplifier is used Using a power amplifier directly e Hold down the DAC s Vol button for 10 seconds to set the Volume to minimum This is indicated by all 7 Sample Rate LEDs turning off for a few seconds see Figure 4 e Connect either the balanced XLR connectors or unbalanced RCA phono connectors outputs on the DAC s rear panel to matching inputs on your power amplifier Switch on the power amplifier e While playing some music hold down the DAC s Vol button until the music is at the desired level You will see the Sample Rate indicators illuminate from the bottom as the volume increases Minimum Volume set between Maximum Volume 10 and 20dB Volume 0dB 0dB O 32 O 32 Ox 10dB O 441 O 44 1 ai 20dB O 48 s s 30dB CO 882 882 882 40dB 96 W 96 x 50dB 176 4 176 4 1764 60dB O
18. lected otherwise the system will not be synchronised and periodic clicks will be heard on the outputs Word clock is used for synchronisation only it does not carry digital data Filename Debussy DAC Manual v2_0x doc Page 18 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 USB Interface The USB interface on a B type connector T will accept PCM data at up to 24 bits 192kS s from a Windows PC Apple Mac or sound server equipped with a USB interface This interface operates in asynchronous mode which makes the Debussy DAC immune to clock jitter from the computer sound server The DAC either uses its own internal clock or locks to the system clock connected to the W Clock input Feedback through the USB cable to the computer controls the rate of data delivery We have tested this interface with several common formats running on Windows 7 Windows Vista Windows XP SP3 and Apple Mac OSX with various PCM streaming programs but we cannot accept responsibility for correct operation with all source devices operating systems or software The USB interface is designed to work with a computer or sound server Nothing useful will happen if you connect the interface directly to an MP3 player or a flash stick Please see page 8 for details on setting up the interface to Class 1 up to 96kS s without special drivers or Class 2 up to 192kS s no drivers are required for OSX 10 6 drivers are
19. llows the clock inside the DAC to control the delivery of data from the computer avoiding the use of the computer s inaccurate and jittery clock Proceed to Step 2 Filename Debussy DAC Manual v2_0x doc Page 8 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Connecting to a Single AES or SPDIF source Most source equipment such as a CD transport or DVD player is fitted with a single wire digital output usually on an RCA phono connector Analogue outputs to amplifier BMANCED ANALOGUE OUT uneiaLancen DIGITAL PCM IN ET RIGHT Re POW ee X T a g ao Ss 4 amp ai ont 00 gt gt 00 Mamma sace sumi Ae ne ioe ae aeaeo sarn oas Langus ee nonteasai bagoa i Dan Corme iwa Paganini Transport Figure 2 Connecting an SPDIF interface e Connect your source equipment to the matching input on the DAC s rear panel using a suitable cable e Press the Input button repeatedly until the AES1 AES2 SPDIF1 or SPDIF2 indicator illuminates as required If the source is active the DAC will lock to the source and the appropriate sample rate indicator will illuminate Proceed to Step 3 Filename Debussy DAC Manual v2_0x doc Page 9 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Connecting to a Dual AES Source For Dual AES mode to work correctly the source must actually generate Dual AES data not just single AES on 2 connectors
20. ly how your particular program processes the audio One particular problem that has been identified and is worthy of note concerns the popular iTunes program when running on Windows systems The default output word length is 16 bits and must be changed to 24 bits for correct operation To do this click on Start gt Control Panel gt Quicktime Click on the Audio tab of the Quicktime panel and select 24 bit in the Size field of the Sound Out section Filename Debussy DAC Manual v2_0x doc Page 11 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Selecting the Debussy DAC as your Audio Output device Whichever program you are using to play your music your computer may not automatically select your Debussy DAC as the preferred playback device You can correct this as follows Windows XP Once you have connected the Debussy DAC and switched it on go to Start gt Control Panel gt Sounds and Audio devices Click on the Audio tab and select dCS Debussy from the drop down list in the Sound Playback Default Device list For best results set the Sample Rate to be the same as that of the file Windows Vista Windows 7 Once you have connected the Debussy DAC and switched it on go to Start gt Control Panel gt Hardware and Sound gt Sound and click on the Playback tab of the panel that appears Select dCS Debussy from the list of available devices For best results click on Properties gt Advanced
21. m the mains fuse If your unit is damaged in any way please contact your dealer Replacing a Blown Mains Fuse There is a mains fuse below the power inlet accessible from the outside of the unit If the fuse blows it may be changed by the user The current consumption of the unit is very low so it only blows if power surges occur or there is a fault in the unit Usually power surges cause no other damage but if the fuse blows repeatedly on replacement some other damage will have been done and the unit will need to be repaired Fuse type 20mm x 5mm T0 5 amp L fuse If the fuse should fail it is essential that it is replaced with one of the same type and rating Failure to do so could result in damage to the unit risk of fire or electric shock and will invalidate the warranty Referring to the diagram below remove the power cable use a small flat bladed screwdriver to pry up the tab on the fuse carrier A and pull it out Push the blown fuse out of the clip in the carrier B and dispose of it Fit a new fuse in the clip C and push the carrier back into the unit so that it clicks home Spare fuses are provided with the unit p N Ng oE m Oe gt Cleaning the case The front panel of your dCS equipment is machined from very high grade aluminium Great care has been taken to create the finish of the aluminium throughout the eng
22. ng the USB interface 8 Connecting to a Single AES or SPDIF source 9 Connecting to a Dual AES Source 10 STEP 2 Setting up the USB source 11 A word about Music Playing Software 11 Selecting the Debussy DAC as your Audio Output device 12 STEP 3 Connecting the Analogue Outputs 13 Using a preamplifier 13 Using a power amplifier directly 13 STEP 4 Using a System Clock 14 Front Paneline sues Sade eledteus bees EEE ERA EAE 15 POWER Button 15 VOL Buttons 15 MUTE Button 15 FILTER Button 15 PHASE Button 15 INPUT button 16 Word Clock Indicator 16 Remote Control Receiver 16 Input Indicators 17 Sample Rate Indicators 17 Factory Reset 17 Rear Panels ck Cocca A E a aac A N E 18 Analogue Outputs 18 Output Level Switch 18 AES Digital Inputs 18 SPDIF Digital Inputs 18 Word Clock Input 18 USB Interface 19 Label 19 TEST Connector 19 Mains inlet 19 Remote Contolera R aa EEA a aR 20 eTo cte pilor LiKe nnana EEEE AAE AE EEEE E EA OEE E E EE 21 Maintenance and Suppott sscccsccceseesseeeeseeeeeeeeescaeseseeeenseeeeeaesesaaeeeaneeeeeeeessaeeaseeeeeeeeeseesaseeeeneeaeees 22 Service and Maintenance 22 Replacing a Blown Mains Fuse 22 Cleaning the case 22 Limited Warranty 23 Software 24 Which Software Issue is loaded 24 Updating the Software 24 Software History 25 If you need more help 25 Filename Debussy DAC Manual v2_0x doc Page 3 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 USING THE dCS Debus
23. or Windows XP SP3 Vista SP2 or Windows 7 the driver files on the disc supplied must be loaded onto the computer before use See page 11 To select Class 2 switch off completely not just Sleep wait 10 seconds then hold down the Input and Vol buttons and switch on Keep the 2 buttons pressed until all the front panel LEDs flash continually Release the buttons and wait for the LEDs to stop flashing The unit is now in Class 2 mode The USB interface can be connected to Windows Vista Windows 7 or Windows XP SP3 or later PC Mac OSX 10 5 4 or later systems or a sound server running software to generate PCM data The interface may work with Linux based servers but we have not tested this Analogue outputs to amplifier aa r i ND AA a DIGITAL PCM IN ga gp eaei EFT waT WICLOCK IN SCS Mode mT rat pe ry ath se in 55 5 MAANA omen rat ek ste moa wemaceton Harm rae Seman on mamateni tapeni by Sata Coven tantn iP UE sorwary P73 CRG WE A Taa paman a magaan m angy i AAS ENN HS Figure 1 Connecting the USB interface e Connect one of the computer s USB ports to the USB port on the DAC s rear panel e Press the Input button repeatedly until the USB input indicator is lit If the source is transmitting PCM data the DAC will lock to the source and the appropriate sample rate indicator will illuminate The DAC s USB interface operates in asynchronous mode This a
24. or your mains supply The unit s voltage setting is shown on the serial number label If this does not match your local supply voltage DO NOT attempt to use the unit Contact your dealer to have the unit reset Using the unit with the wrong mains setting for your local supply may result in serious damage to the unit and will invalidate the warranty Do not attempt to reset the voltage yourself We do not recommend the use of mains regenerators However if you do wish to use a mains regenerator with variable voltage and frequency we recommend that you set the voltage to match your local voltage and the frequency to either 50Hz or 60Hz ONLY Damage caused to your Debussy DAC by misuse of a mains regenerator or by a malfunctioning mains regenerator is not covered by the warranty Disposal at end of life the symbol indicates that this product should not be treated as normal household waste It should be recycled so please take it to an approved collection facility Filename Debussy DAC Manual v2_0x doc Page 5 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 STEP BY STEP GUIDE This section guides you through setting up the unit for basic operation Preliminaries For digital interfaces use with cables designed for digital audio e for AES EBU interfaces use 110 screened twisted pair cables fitted with one male 3 way XLR connector and one female 3 way XLR connector e for SPDIF BNC and Word Clock interfaces u
25. r parts of your system To prevent overheating we recommend that you leave some free space around the unit to allow for ventilation 3 feet are fitted as standard this may be changed to the 4 foot arrangement shown below if you prefer Spare feet are available as an optional extra The mounting points are M4 size maximum screw depth is 8mm FRONT EDGE FRONT EDGE Q 3 STANDARD 3 FOOT y OPTIONAL 4 FOOT ARRANGEMENT j ARRANGEMENT 7 MOUNTING POINT MOUNTING POINT MOUNTING POINT FOR 4 FOOT FOR 4 FOOT FOR 3 FOOT ARRANGEMENT J ARRANGEMENT ARRANGEMENT C e BACK EDGE BACK EDGE Filename Debussy DAC Manual v2_0x doc Page 4 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Safety Notice Your dCS Debussy DAC contains no user serviceable parts DO NOT attempt to open the case as there are potentially dangerous voltages present inside In the event of the unit developing a fault please contact your dealer in the first instance To maintain protection from electric shock the unit MUST be connected to mains earth ground via the power cable Also unearthed systems do not give the best sonic performance VA This product is lead free to comply with the RoHS directive RoHS lead free 2002 95 EC Before connecting the power cable to the unit for the first time please check that it has been set to the correct operating voltage f
26. ranty period there will normally be no charge for parts or labour Operating Conditions The supply voltage must remain within 10 of the A C voltage specified on the back panel The supply frequency must be in the range 49Hz to 62Hz Ambient temperature range 0 C 32 F to 40 C 104 F non condensing Do not install the unit near heat sources such as radiators air ducts power amplifiers or direct strong sunlight e If in doubt the easy test is the unit is happy to work anywhere a human is Filename Debussy DAC Manual v2_0x doc Page 23 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Software Which Software Issue is loaded The Debussy DAC does not have a display but if the USB port is connected to a computer you can find the software issue in the USB device descriptor for firmware version To do this Windows XP Go to Start gt Control Panel gt System gt Hardware gt Device Manager gt Sound Video and Game Controllers Double click on USB Audio Device select the Details tab and choose Hardware Ids from the drop down box The first line of text that appears will include the software issue prefixed by Rev_ For example Rev_0103 in the picture below indicates the software issue is 1 03 General Driver Details USB Audio Device D Hardware Ids USB Wid_le8cSPid_01808Rev_01038MI_00 USB Wid_le8c amp Pid_01808MI_00 Windows Vista Windows 7 Go to Start
27. required for Windows Label The label U states the unit s serial number and the nominal voltage to which the unit is set It is important to quote the serial number if you need assistance TEST Connector The TEST connector V is an RS232 interface primarily used to remotely control the unit during automated testing Please contact dCS for information about using this interface with a household automation system Note that we recommend using infra red remote control instead Mains inlet Power is connected via a standard IEC320 connector W protected by a fuse X and isolated by a 2 pole power switch Y Filename Debussy DAC Manual v2_0x doc Page 19 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 REMOTE CONTROL Hold down the Sleep button for 2 seconds to set the DAC to sleep mode Press the Sleep button again to return to normal operation In Sleep mode press the OFF button to turn the DAC off The Filter button changes the filter setting when locked to a source The AES button selects the AES1 input The Input and Input buttons cycle through the digital inputs The Vol and Vol buttons adjust the Volume The Mute button turns the Analogue Outputs off and on The other buttons on this handset are for use with other models When the DAC is completely off not just in sleep mode press the front panel Power button to turn it on You cannot use the Remote Control for this
28. se 75Q coax cables fitted with BNC plugs e for SPDIF RCA interfaces use 75Q coax cables fitted with RCA Phono plugs e for the USB interface use a standard screened USB cable fitted with one type A connector and one type B connector The internal screen must be connected at both ends For analogue outputs use with screened cables of the correct type e for balanced outputs use screened twisted pair cables fitted with one male 3 way XLR connector and one female 3 way XLR connector e for unbalanced outputs use coax cables fitted with RCA Phono plugs Connect the power cable supplied to the power inlet on the Debussy DAC rear panel plug the other end into a convenient power outlet If you wish to use a power cable other than the one supplied please ensure that it is a good fit to the mains inlet and is not so heavy or inflexible as to place strain on the mains inlet Set the rear panel power switch to the I position press the POWER button briefly and wait about 30 seconds while the unit configures itself The Power indicator and one or two of the input indicators will illuminate some of the other indicators may also illuminate Filename Debussy DAC Manual v2_0x doc Page 6 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 Fitting the Remote Control handset batteries DURACELL Use a small coin to Lift the screw a Fit 2 AA size batteries by pressing Slide the back release the screw
29. sy DAC FOR THE FIRST TIME Congratulations on purchasing your dCS Debussy DAC This version of the Debussy DAC is fitted with new hardware and software to add 24 192 USB capability Before using your unit please read this section and the Step by Step Guide This will enable you to set the unit up quickly and safely with your hi fi system From time to time dCS may release updated software you can install yourself from a PC Please check our web site occasionally to see if new Debussy DAC software is available or consult your dealer What s in the box Check that the box contains the following items dCS Debussy DAC Manual dCS USB Audio Class 2 drivers disc for Windows Power cable USB cable 2 spare fuses dCS Premium Remote Control with 2x AAA batteries Notify your dealer as soon as possible if anything is missing or damaged We suggest that you retain the original packaging for possible future use If this is not possible replacement packaging can be ordered from dCS or our distributors Details can be found on our web site at www dcsltd co uk The cables supplied are commercial grade parts as we realise our customers will want to make their own choices Positioning the unit The Debussy DAC may be stacked with other products but the system is likely to give better sonic results when units are mounted on separate shelves of a rack Place each unit on a firm vibration free base allowing convenient connection to the othe
30. sy DAC User Manual Software Issue 2 0x May 2011 Software History dCS products make extensive use of software configurable chips FPGAs and DSPs This gives us the ability to update our products to add extra features update digital interface standards or make performance improvements by loading new software Occasionally a hardware upgrade may be necessary also to increase the capacity of the electronics add extra connectors or extra front panel controls Please note that not all software updates make an earth shattering change You should have a clear idea of what you expect to gain before updating to the latest issue We recommend that you keep your software up to date Check the dCS web site for the latest software updates This manual is for Debussy DAC software version 2 0x e Issue 1 00 The first issue e Issue 1 01 Improves compatibility with WASAPI Word Clock LED operation corrected Do not try to CD Update a v1 0x Debussy to v2 0x without arranging for a USB hardware upgrade at the same time The CD Update will fail leaving the original software unchanged e Issue 2 00 Adds support for USB Audio Class 2 operation at up to 192kS s If you need more help In the first instance you should contact your dealer If they cannot resolve the issue please contact your national distributor dCs our dealers and distributors cannot accept responsibility for I T support issues In such cases please ask the comput
31. tions the category code is 13 Function Code Function Code Function Code Volume 16 Select AES 1 3 Next input 27 Volume 17 Select AES 2 4 Previous input 28 Toggle Filter 14 Select Dual AES 32 Wake 42 Toggle Phase 9 Select SPDIF 1 1 Sleep 41 Toggle Mute 13 Select SPDIF 2 6 Power off 43 Select USB The Debussy DAC features a USB HID interface which allows control of some Media Player functions These commands depend on the behaviour of the streaming software which is beyond our control At the time of writing most streaming software does not handle the Fast forward or Fast reverse commands well Filename Debussy DAC Manual v2_0x doc Page 16 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 At present the USB HID interface is not supported by the USB Class 2 Windows drivers For the Media Player functions the category code is 20 Function Code Play Pause 53 Previous track 33 Next track 32 Fast forward 52 Fast reverse 50 Input Indicators In normal use one of these indicators J illuminates to indicate the selected input For Dual AES both AES 1 and AES 2 indicators illuminate If the DAC is not receiving data through the selected input the indicator will flash Sample Rate Indicators The column of sample rate indicators K remain off when the unit is not locked When the unit locks to incom
32. uts When the unit is muted either manually or when not locked to a source the LED to the left of the button illuminates FILTER Button Use the FILTER button E to select your preferred anti image filter The two filters have very similar amplitude responses but different phase responses If the indicator to the left of the button is off the filter applied is a classic sharp filter with linear phase and pre ringing Press the button to change to the alternative filter which has non linear phase and no pre ringing The indicator illuminates when the alternative filter is selected Filter choice is a personal preference and is best done by ear The choice of filter may depend on the type of music you are listening to The DAC remembers the last filter selection for every sample rate PHASE Button If the indicator to the left of the PHASE button F is off all analogue outputs will be in absolute phase with the digital data Press the button to reverse the phase of all outputs the indicator illuminates to warn of this This feature is useful for correcting the playback of tracks that have been recorded in reverse phase Filename Debussy DAC Manual v2_0x doc Page 15 English version dCS Debussy DAC User Manual Software Issue 2 0x May 2011 INPUT button Press the INPUT button G repeatedly to cycle through the available digital inputs the selected input will be shown by the input indicators J The sequence is USB AES 1 A
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