21
Troubleshooting Guide
The USB input is not working?
•
Make sure you SELECTED the USB as the
input on the Reference DAC
•
Make sure you installed the DAC driver
software from the CD that came with
your Reference DAC and make sure the
computer recognizes the Reference DAC is
connected.
•
Make sure you are using a High Speed USB
cable, one rated for 480Mbps.
I don’t see the Reference DAC in the
SOUND panel on my Mac or Windows PC
computer?
•
After you install the DAC driver software
you must make sure the Reference DAC
is connected to the computer via the
USB cable and plugged into an AC outlet
otherwise the computer will not show the
Reference DACs presence in the SOUND
panel. In some cases it helps to RESTART
your computer with the Reference DAC
still connected; this allows the computer
to finish the installation and place the DAC
into the SOUND panel for selection.
The volume is too loud or the audio is
distorted using my Mac computer?
•
Check the VOLUME control setting in the
AUDIO MIDI Setup panel. The Volume
should be set to about 0.0dB for both
channels. (The Mac computer allows the
customer to increase the digital volume
of the music past 0.0dBm consequently,
the Mac can overdrive the Reference DAC
and cause distortion. This is not an issue
with the Windows PC where 0.0dBm is the
maximum volume setting.)
The audio intermittently distorts when
running with the USB input?
•
Check to make sure you are using your
computers USB 2.0 HS (480Mbps) port. A
USB 2.0 FS (12Mbps) port will sometimes
work but will distort. Most PC and Mac
computers made after 2008 come stock
with USB 2.0 HS ports.
•
On your PC go into the Device Manager,
then USB Controller, then USB Root Hub
panel and click on Properties and then
Advanced; there it will say the speed of
that USB port.
It is possible for a static discharge to
temporarily disable the microprocessor
that allows the controls to function. If this
should occur, depress the ‘Mute’ button,
then turn off the unit and unplug the DAC
from the A.C. receptacle for 60 seconds.
Reconnect the A.C. plug and turn the unit
back on, along with other components.
The controls should resume normal
operation. If the problem persists, contact
your dealer or Audio Research Customer
Service at 763-577-9700.
Operation
Summary of Contents for reference dac
Page 1: ...Reference DAC H I G H D E F I N I T I O N ...
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Page 24: ...24 Software Installation ...