Standalone
ObjectiveDAC
Operating
Instructions
1.
Connect
a
mini
‐
USB
cable
between
your
computer
and
the
USB
jack
on
the
ODAC.
2.
Connect
a
cable
between
the
ODAC's
3.5mm
or
RCA
line
‐
output
jack
to
a
headphone
amplifier.
3.
Allow
computer
to
detect
ODAC
as
a
USB
device.
Begin
use.
Note:
Do
not
connect
headphones
directly
to
the
ODAC.
The
ODAC
is
a
line
‐
output
device
which
absolutely
requires
connection
to
an
external
amplifier.
Initial
Computer
Setup
ODAC
requires
no
drivers
in
Windows,
Mac
OS
X,
or
Linux.
Most
operating
systems
immediately
recognize
and
set
ODAC
as
the
default
playback
device.
To
manually
select
the
playback
device
in:
o
Windows
XP:
Double
click
volume
icon
in
taskbar.
Click
‘Options’,
‘Properties’,
choose
‘ODAC’.
o
Windows
Vista/7:
Right
click
volume
icon
in
taskbar,
click
'Playback
Devices',
set
'ODAC'
as
default
device.
Suggested
Properties
(Right
click
ODAC
"Speakers"
icon):
Enhancements:
Check
"Disable
all
enhancements"
Advanced:
24
bit,
96000
Hz
o
Mac
OS
X:
Ensure
‘ODAC’
is
selected
from
‘Audio
Devices’
Listening
Tips
For
maximum
signal
fidelity,
keep
ODAC
digital
volume
set
at
100%
at
the
computer.
Only
control
volume
from
your
headphone
amplifier.
Set
output
to
24
‐
bit,
96
kHz
High
‐
performance
audio
devices
can
produce
dangerously
loud
music.
Be
sensible
and
listen
safely:
www.hearingloss.org
Troubleshooting
All
ODACs
are
machine
and
hand
tested.
Most
issues
can
be
easily
resolved.
No
sound
in
one
channel
o
Causes:
Bad
output
cable,
or
incorrect
computer
settings
o
Solutions:
Check
balance
settings;
try
another
output
cable.
Some
Mac
O/S
X
machines
will
pan
audio
to
Left
channel
upon
first
connection
of
ODAC.
User
must
restore
balance
to
center.
Distorted
output
or
“harsh”
treble
(constant
or
intermittent)
o
Causes:
Weak
USB
power,
or
bad
USB
cable
o
Solutions:
Use
a
powered
USB
hub
or
different
computer;
try
another
USB
cable
Thank
you
for
purchasing
the
Standalone
ODAC.
If
you
have
additional
questions
or
comments,
feel
free
to
write
to:
JDSLabs
.com
