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INSTRUCTIONS FOR USE
Pro-Ject Head Box DS

© Pro-Ject Audio Systems · Pro-Ject Head Box DS (from S/N D8896) · Revision 5.4.2 201
2
Dear music lover,
thank you for purchasing a Pro-Ject Audio Systems´ headphone amplifier.
In order to achieve maximum performance and reliability you should study these instructions for use carefully.
!
Warning of a hazard for the user, the unit or possible misuse.
Important notice.
Safety instructions
!
AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the
voltage in your area meets the voltage requirements printed on the power supply.
The power supply is used to disconnect the unit from the mains. Make sure that the power supply is easily
accessible at all times. Never handle the device, the power supply while your hands are wet or damp.
Avoid letting liquids enter the device or the power supply. Never place any item containing liquid,
such as a flower vase on or near the device. Never spill any liquid on the device or the power supply.
Never place any naked flame sources, such as lighted candles on or near the device. The product shall not
be used in damp or wet locations, next to a bathtub, sink, swimming pool or any other similar conditions.
Connections
!
Make all connections, whilst the unit is
except
except
except
except except the
the
the
the the connecti
connecti
connecti
connecticonnection
on
on
on on to
to
to
to to the
the
the
the the computer
computer
computer
computercomputer
and
and
and
and and the
the
the
the the headph
headph
headph
headphheadphone
one
one
oneone,
disconnected from the power supply.
Take care to connect the left and right channels correctly. The right channel is usually marked red, the
left channel black or white.
Never use any other power supply than the one supplied with the uni t.
Connection to the amplifier
Connect the RCA/phono sockets from your amplifier to the RCA/phono sockets of TAPE / RECORD OUT In
the headphone amplifier.
Alternatively analogue sources like CD player or tuner can be reconnected to the sockets directly. In
Digital inputs
Sources with an digital output such as a CD player can be connected to the digital inputs (coaxial and optical).
A computer can be connected to the USB input.
The signal of the connected digital sources can be relayed to an analogue input of the amplifier via the
Out
Out
Out
OutOut
socket.
Connecting to a Computer
Connect the USB-input of the headphone amplifier (unit must be switched on) to a free USB-socket on your
computer and turn it on/make sure it is powered on. The amp will be automatically recognized by the computer *.
For Windows
®
operating systems a 24Bit/192kHz driver (supplied on CD) has to be installed. Mac OS
®
operating systems support 24Bit/192kHz as a standard.
Please note: Connection should be made to an USB-socket of your computer directly. Connecting to
USB-hubs or switches can cause problems.

© Pro-Ject Audio Systems · Pro-Ject Head Box DS (from S/N D8896) · Revision 5.4.2 201
3
Mains power connection
Connect the low voltage plug from the power supply to the Power V 18 DC socket before connecting the
power supply to the mains.
Front panel controls
!
Please set the volume level to minimum before connecting the headphone.
Minimum impedance of the head phone 30ohms.
To switch on from standby or to standby
will toggle the unit between its fully operational status and standby. After switching on, the USB input will be
selected automatically.
Input selector
Pressing repeatedly selects the inputs in turns. The selected input and the sampling frequency (digital inputs
only) of the input signal will be shown in the display. The sampling frequency shown for the analog input is
irrelevant.
Connecting a headphone
Connect the headphones to the ¼“ (6,3mm jack socket on the front of the headphone amplifier. )
Volume
Adjust the volume (87 steps) to the desired level using the buttons and . The volume level will be shown in
the display. indicates min., max..
-87dB
-87dB
-87dB
-87dB-87dB 00
00
00
0000dB
dB
dB
dBdB
Headphone replay
Use the input selector of the amplifier or the headphone amplifier to choose the source you wish to hear.
24Bit/192kHz driver (Windows
®
operating systems only)
* For Windows
®
operating systems a 24Bit/192kHz driver has to be installed.
Insert the CD (supplied with the unit) into your computer drive and follow the installation routine.
Finish the installation by restarting the computer.
After installin
After installin
After installin
After installinAfter installing the 24Bit/192kHz
g the 24Bit/192kHz
g the 24Bit/192kHz
g the 24Bit/192kHzg the 24Bit/192kHz driver, s
driver, s
driver, s
driver, s driver, some setting ha
ome setting ha
ome setting ha
ome setting haome setting have to be
ve to be
ve to be
ve to beve to be done.
done.
done.
done. done.
For example - Windows 7
®
®
®
®®
operating system:
Control Panel Hardware and Sound Sound Playback: select Pro
Pro
Pro
ProProje
je
je
jeject
ct
ct
ctct He
He
He
He Head
ad
ad
adadBo
Bo
Bo
BoBox
x
x
x x DS
DS
DS
DSDS US
US
US
US USB
B
B
B B 2.
2.
2.
2.2.0
0
0
0 0 Au
Au
Au
AuAudio
dio
dio
diodio O
O
O
O Out
ut
ut
utut
Properties Supported Formats: Level Sound: setting must bemak
mak
mak
makmake sure nothing is ass
e sure nothing is ass
e sure nothing is ass
e sure nothing is asse sure nothing is assigned
igned
igned
ignedigned
100
100
100
100 100
hancements: En disa
disa
disa
disadisable all
ble all
ble all
ble all ble all enhancements
enhancements
enhancements
enhancements enhancements Advanced Default Format: set to studi
studi
studi
studi studio quality 24
o quality 24
o quality 24
o quality 24o quality 24/192
/192
/192
/192 /192
Produktspecifikationer
Varumärke: | Pro-Ject |
Kategori: | hörlur |
Modell: | Head Box DS |
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