DCS Debussy DAC User Manual
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DCS Debussy DAC User Manual

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dCS Debussy DAC
Stereo Digital to Analogue Converter
with asynchronous USB Interface

User Manual

Software Release 2.2x
August 2013
Price UK £8.00 / Euro 12.00
© Data Conversion Systems Ltd. 2010-2013
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)
1
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.
1
dCS is Data Conversion Systems Ltd. Company registered in England No. 2072115.

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Summary of Contents for DCS Debussy DAC

  • Page 1: User Manual

    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. dCS is Data Conversion Systems Ltd. Company registered in England No. 2072115.
  • Page 2 Debussy DAC User Manual Software Issue 2.2x August 2013 Page 2 Debussy DAC Manual v2_2x.docx English version...

  • Page 3: Table Of Contents

    Debussy DAC User Manual Software Issue 2.2x August 2013 Contents   Using the dCS Debussy DAC for the first time ..................4   What’s in the box?   Positioning the unit   Safety Notice   Step-by-Step Guide ..........................6  ...

  • Page 4: Using The Dcs Debussy Dac For The First Time

    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 other parts of your system.

  • Page 5: Safety Notice

    August 2013 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.

  • Page 6: Step-By-Step Guide

    3-way XLR connector. • 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.

  • Page 7: Fitting The Remote Control Handset Batteries

    Debussy DAC User Manual Software Issue 2.2x August 2013 Fitting the Remote Control handset batteries Use a small coin to Lift the screw a Fit 2 AA size batteries by pressing Slide back release the screw little and slide the...

  • Page 8: Step 1 - Selecting A Digital Input

    Debussy DAC User Manual Software Issue 2.2x August 2013 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.

  • Page 9: Connecting To A Single Aes Or Spdif Source

    Debussy DAC User Manual Software Issue 2.2x August 2013 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.

  • Page 10: Connecting To A Dual Aes Source

    Debussy DAC User Manual Software Issue 2.2x August 2013 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 (which gives a mono output)!

  • Page 11: Step 2 - Setting Up The Usb Source

    “dCS Guide to Computer Audio”. To load the Windows drivers for USB Class 2: • If ASIO4ALL is loaded on your computer, please uninstall it - otherwise the dCS driver will not work correctly.

  • Page 12: Selecting The Debussy Dac As Your Audio Output Device

    What is DoP? DoP is the abbreviation for “DSD over PCM”. The basic idea was devised by dCS in 2011 as a convenient way to transmit DSD from a computer to a 24/192 USB DAC. It involves packing the DSD data into the lower 16 bits of a 24/176.4 data stream, using the top 8 bits as a marker to warn the DAC...

  • Page 13: Step 3 - Connecting The Analogue Outputs

    Debussy DAC User Manual Software Issue 2.2x August 2013 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.

  • Page 14: Step 4 - Using A System Clock

    Paganini Clock to the system as shown in the example below. Analogue outputs to amplifier Paganini Transport Paganini Clock Figure 5 – Using the Paganini Transport, Clock and Debussy DAC together • Connect two of the Clock’s W/Clk Outputs to the W/Clk Inputs of the Transport and DAC.

  • Page 15: Front Panel

    Debussy DAC User Manual Software Issue 2.2x August 2013 RONT ANEL 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.

  • Page 16: Input Button

    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.

  • Page 17: Input Indicators

    Debussy DAC User Manual Software Issue 2.2x August 2013 At present, the USB HID interface is not supported by the USB Class 2 Windows driver. For the Media Player functions, the category code is 20. Function Code Play / Pause...

  • Page 18: Rear Panel

    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, some dCS Transports and some sound cards.

  • Page 19: Usb Interface

    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.

  • Page 20: Remote Control

    Debussy DAC User Manual Software Issue 2.2x August 2013 EMOTE ONTROL 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 button to turn the DAC off.

  • Page 21: Specification

    August 2013 PECIFICATION Converter type 5-bit, 2.822 or 3.07MS/s oversampled, dCS Ring DAC™ topology. All data is oversampled to this format before conversion to analogue. Digital inputs USB interface on a B-type connector, will accept up to 24 bit PCM at: •...

  • Page 22: Maintenance And Support

    Spare fuses are provided with the unit. 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 engineering process from the raw solid material to the finished piece.

  • Page 23: Limited Warranty

    issued.

  • Page 24: Software

    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. Before checking the software issue, change the USB Class as described on page 8. This ensures that the currently installed code is loaded into the USB interface and the issue is correctly reported.

  • Page 25: Updating The Software

    10 seconds, then switch on again. 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.

  • Page 26: 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 computer or software vendor for advice.

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