User Guide

dCS Elgar Plus User Manual Manual for Software Issue 4.3x
dCS Ltd September 2004
Manual filename: Elgar Manual v4.3x.doc Page 39 email: [e-mail]
English version web-site: www.dcsltd.co.uk
Balanced Analogue Outputs
If your pre or power amplifier has balanced inputs, connect Elgar Plus’
Balanced Analogue Outputs to them. For best results, connection of these
outputs to unbalanced inputs is not recommended – use the Unbalanced
Analogue Outputs instead. Use good quality, screened, XLR audio cables.
Unbalanced Analogue Outputs
For unbalanced equipment, use the Unbalanced Outputs with good quality,
screened, RCA phono audio cables. The Unbalanced Outputs are very high
quality! It is much better to use these for equipment with a single-ended input,
than to use half of a balanced output. Doing so may cause ground loop hum
pickup.
AES/EBU Digital Inputs
The AES 1 and AES 2 inputs may be used individually for digital signals with
sample rates up to 96kS/s. The data format is AES3.
In Dual AES mode, both inputs must be used together. The Dual AES interface
allows a 192, 176.4, 96 or 88.2 kS/s 24 bit signal to be encoded as two
standard 96, 88.2, 48 or 44.1 kS/s 24 bit AES data streams respectively. Elgar
Plus decodes the dual data stream and converts it to wide band analogue. See
Dual AES on page 23 for more information.
IMPORTANT! Please ensure the two AES inputs are correctly connected to the source for
Dual AES operation or the channels will be swapped. This usually involves
connecting AES 1 (or AES A) on the source to AES 1 on Elgar Plus and
AES 2 (or AES B) on the source to AES 2 on Elgar Plus.
Use with 110 ohm screened, twisted pair cable designed for digital audio or RF.
Do not use unscreened cables as they may pick up interference from other
appliances.
SPDIF Digital Inputs
The RCA1, RCA2 and BNC inputs are used individually for digital signals with
sample rates up to 96kS/s. The data format is IEC60958, otherwise known as
SPDIF. RCA connectors are the type commonly found on consumer equipment.
Use with 75 ohm co-axial cables designed for digital audio or RF use. Some
types of audio cable are not suitable and may cause crackling noises or other
malfunctions.
Toslink and ST Optical Inputs
The Toslink and ST inputs are used for optically transmitted digital signals with
sample rates up to 48kS/s. In practice, the interfaces are tested up to 96kS/s
but dCS cannot guarantee this with non-dCS source equipment. The data format
is IEC60958, otherwise known as SPDIF.
Use the Toslink input with Toslink fibre optic cables designed for digital audio
use. Use the ST input with ST style fibre optic cables. Pull off the plastic cover
before use.