User manual DCS (AUDIO) ELGAR

[. . . ] dCS Elgar Plus Stereo Digital to Analogue Converter User Manual Software Release 4. 3x September 2004 © dCS Ltd. 1999 - 2004 Price UK £17. 50 / Euro 25. 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 dCS1. Any person who does any unauthorised act in relation to this publication may be liable to criminal prosecution and civil claims for damages. [. . . ] Do not install the unit near heat sources such as radiators, air ducts, power amplifiers or direct strong sunlight. If in doubt, the easy test is - Elgar Plus is happy to work anywhere a human is. Manual filename: Elgar Manual v4. 3x. doc English version Page 47 email: more@dcsltd. co. uk web-site: www. dcsltd. co. uk dCS Elgar Plus User Manual dCS Ltd Manual for Software Issue 4. 3x September 2004 GENERAL TECHNICAL INFORMATION IEEE 1394 Overview The IEEE 1394 interface is a high speed multi-channel system. It has the capacity to carry over 50 channels of DSD (Direct Stream Digital) or over 30 channels of 24 bit / 192kS/s audio data through a single cable. From October 2001 onwards, a pair of 6-way electrical IEEE 1394 interfaces running at 200Mbit/s are available on the following dCS products: · · · · · dCS Elgar Plus DAC, standard fit with software version 4. 10 or later. dCS Delius DAC, optional fit with software version 2. 10 or later. dCS Purcell Upsampler, optional fit with software version 2. 11 or later. dCS Verdi SACD/CD Transport, standard fit. dCS Verdi La Scala Upsampling SACD/CD Transport, standard fit. In the current implementation, Purcell can upsample standard digital formats (such as CD at 44. 1kS/s 16 bits) to DSD at 2. 822MS/s and output a stereo pair of DSD data onto its 1394 interface. Verdi can read DSD data from an SACD and output a stereo pair of DSD data onto its 1394 interface. The data is encrypted to conform to the conditions of the DSD licensing arrangements. Either Elgar Plus or Delius will accept DSD data from the 1394 interface and convert it to high quality analogue. The hardware interface is very flexible and software configurable. We will add other features and data formats at a later date, adopting industry standard formats as they stabilise. Synchronising IEEE 1394 interfaces The IEEE 1394 system is great for carrying large amounts or digital audio data ­ but is inherently very jittery. To ensure low-jitter conversion to analogue, each unit linked by the 1394 system must be synchronised to the others by another connection. · · · A DAC in slave mode should be sync'ed to Verdi by connecting Verdi's WClk Out to the DAC's WClk In. A DAC in master mode should sync Verdi by connecting the DAC's WClk Out to Verdi's WClk In. An Upsampler should be slaved to Verdi, usually by the selected PCM input (AES or RCA). Automatic Input Selection From October 2002 onwards, the software on the following products has been enhanced to automatically select the interface carrying data from Verdi: · · · · dCS Elgar Plus DAC, standard fit with software version 4. 20 or later. dCS Delius DAC, optional fit with software version 2. 20 or later. dCS Verdi SACD/CD Transport, standard fit with software version 1. 20 or later. dCS Verdi La Scala Upsampling SACD/CD Transport, standard fit, with the Easy Play menu set to Verdi. The system relies on a 1394 link between Verdi and the DAC. The DAC will automatically change inputs whenever Verdi changes layer or starts playing. Manual filename: Elgar Manual v4. 3x. doc English version Page 48 email: more@dcsltd. co. uk web-site: www. dcsltd. co. uk dCS Elgar Plus User Manual dCS Ltd Manual for Software Issue 4. 3x September 2004 If the Verdi starts playing an SACD, the DAC selects that 1394 channel. [. . . ] 64, 65 troubleshooting 1394 interface . . . . . . . . . . . . . . . . . . . . . 69 U unbalanced outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Up and Down buttons, remote . . . . . . . . . . . . . . . . . . . . . . 45 updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]