8
9
USB Input
Optical Input
Coaxial Input
Analog Input
...Using the Digital-to-Analog Converter Option
...Using the Unbalanced Analog Inputs
1. Select ‘digital’ on the digital/analog se-
lector switch on the back of the unit
2. Select ‘USB’ on the digital selector
switch on the back of the unit
3. plug your USB cable into the back of the
amplifier
4. plug the other end of your USB cable into
any USB jack on your computer or player.
It is a good idea to turn your units off while connecting equipment.
ALWAYS make sure the volume all the way down before plugging and unplugging
your headphones from the jacks.
Amplifier DAC,
USB
Computer, USB
Amplifier RCA
analog inputs
Amplifier DAC,
coaxial input
CD player,
coaxial output
Amplifier DAC,
optical input
CD player
optical
output
CD player, analog
outputs
You will need an RCA cable with right and
left terminations on both ends.
1. Select ‘analog’ on the digital/analog se-
lector switch on the back of the unit
2. plug your RCA cables into the back of the
amplifier using analog input set ‘1’ or ‘2’.
3. Select the corresponding set number of
the analog input select switch
4. plug the other end of your RCA cable into
the analog output of your CD player.
1. Select ‘digital’ on the digital/analog se-
lector switch on the back of the unit
2. Select ‘optical’ on the digital selector
switch on the back of the unit
3. plug your optical cable into the back of
the amplifier.
4. plug the other end of your optical cable
into the optical output of your player.
1. Select ‘digital’ on the digital/analog
selector switch on the back of the unit
2. Select ‘coaxial’ on the digital selector
switch on the back of the unit
3. plug your coaxial able into the back of
the amplifier.
4. plug the other end of your coaxial cable
into the coaxial output of your player.
...Using the Balanced Analog Inputs
Hooking Up Your Home Amp via DAC
Balanced Cabling & Hook Up via Analog
For the Sennheiser HD580/ HD600/ HD650 models, Cardas
Audio offers very highly upgraded balanced cabling which
can be easily installed by the consumer via the quick-de-
tach, two-prong clips at the bottom of the headphone’s
earcups; So simply tug out the stock Sennheiser cable,
pop in the new Cardas Audio cable and, BLAM, you are
ready to jam balanced-style. We can also do balanced
re-cabling for the AKG701, and the beyerdynamic DT880
-- both of which are hard-wired and must be done here
at HeadRoom. All warranties are still valid. Please con-
tact us at 1-800-828-8184 for further info regarding re-
cabling your headphones to a fully balanced set-up.
Analog Input
Custom cabling your headphones for balanced drive
In order to operate a headphone amplifier in balanced mode, you must have a balanced
source and balanced headphones. Please contact us for more details or recommenda-
tions of a balanced player.
CD player analog
outputs
XLR analog
inputs
You will need a balanced XLR cable with right
and left terminations on both ends.
1. Select ‘analog’ on the digital/analog selec-
tor switch on the back of the unit.
2. Plug your XLR cables into the back of the
amplifier using the balanced XLR input set, la-
beled for right(R) and left(L).
3. Plug the other end of your XLR cable into the
Balanced analog output of your CD player.
4. Make sure that the mode switch on the amp
is switched to balanced mode.
When in unbalanced mode, balanced headphones will not operate. Unbalanced Headphones must be used.
