User guide

Comet Computer DAC User Guide
Choosing a Digital Input Cable
While the EXOGAL Comet supports most commonly accepted transmission formats for digital audio, we
recommend using a high quality cable. Contact your EXOGAL retail representative for recommendations.
Based on our experience, here is a list of digital interface methods in descending order of performance:
USB
AES/EBU using XLR connector
Coaxial cable using BNC connector
Coaxial cable using RCA to BNC adapter
TOSLINK plastic-optical cable
The quality of any of these transmission methods depends on the quality of the cable and the sophistication
of the transmitter and receiver. For example, a high quality coaxial cable can outperform a low quality
AES/EBU cable.
If you are using a coaxial cable we recommend that you have the cable terminated with a 75 ohm BNC
connector. This will provide higher performance than an RCA connector.
Again, we highly recommend that you take advantage of your dealer’s experience and, most importantly,
trust your ears.
All XLR-type inputs and outputs on the EXOGAL Comet, both digital and analog, use the standard
audio pin configuration:
Pin 1 - Ground
Pin 2 - Positive signal
Pin 3 - Negative signal
User Interface
Turn-on Screen
When power is turned on, the EXOGAL Comet will show the display screens, as shown below,
for several seconds.
First you will see the product name screen with the software version number: