Matrox DigiSuite LE, Installation Manual, Page: 44 / 140

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Chapter 3, Connecting Your External Devices and Configuring Your BIOS Settings
Avoiding audio connection problems
Please read the following information to avoid problems with audio
connections as well as possible damage to or malfunction of your
equipment.
Avoiding unwanted pops and clicks
As is the case with many electronic audio components, DigiSuite LE may
generate audible popping and clicking sounds that will be reproduced in
any external audio equipment connected to it.
To avoid this problem, make sure that all external devices connected to
DigiSuite LE are turned off and their volume controls turned down
whenever you are doing one of the following actions:
q Connecting or disconnecting cables.
q Turning power on and off.
q
Rebooting your computer.
Using adapters
When connecting an XLR cable to RCA equipment, or vice versa, make
sure you are using properly impedance-matched adapters. Using the wrong
type of adapter may degrade the audio quality.
Important
If you’re using the DigiSuite LE DigiConnect/Audio
breakout box and wish to output to unbalanced equipment, make sure to
use the provided XLR-to-RCA adapters to avoid any potential degradation
of your audio signal. Remember that your audio outputs must be set to
RCA (unbalanced analog) in the DigiSuite Configuration program, as
explained in “Configuring your audio settings” on page 68 .
Other important reminders
q
Avoid using the unit near a power amplifier or other equipment
containing large transformers as this may induce hum.
q
Do not use the unit on the same power circuit with any device that
generates line noise, such as a motor or a variable lighting system.
q Do not bundle audio cables with AC power cords.
q Avoid running audio cables near sources of electromagnetic
interference such as transformers, monitors, etc.
q Do not place cables where they can be stepped on. Although stepping
on a cable may not cause immediate damage, it can compress the
insulation between the cable's center conductor and its shield. This
may degrade performance and/or reduce the cable's reliability.