Pro-Ject Audio Systems Pro-Ject DAC Box DS User manual

INSTRUCTIONS FOR USE
Pro-Ject DAC Box DS

© Audio Trade GmbH · Pro-Ject DAC Box DS · Revision 2012.10.1
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Dear music lover,
thank you for purchasing a PRO-JECT AUDIO DAC Box DS.
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.
Connectors
18V
!
Make all connections, except the connection to the computer, whilst the unit is disconnected from the
power supply. Connect the unit to the mains and switch it on before connecting it to the computer.
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 unit.
Connection to the amplifier
Connect the Out socket to a line input (such as AUX) on your amplifier.
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.
Connecting to a Computer
Connect the USB-input of the DAC (unit must be switched on) to a free USB-socket on your computer and
turn it on/make sure it is powered on. The DAC will be automatically recognised by the computer. There is no
need to install a driver* manually.
Please note: Connection should be made to an USB-socket of your computer directly. Connecting to
USB-hubs or switches can cause problems.
Mains power connection
The unit is supplied with a power supply suitable for your country's mains supply. Check the label before
connecting to ensure compliance with the mains rating in your house. Connect the low voltage plug from the
power supply to the Power 18V "socket before connecting the power supply to the mains.

© Audio Trade GmbH · Pro-Ject DAC Box DS · Revision 2012.10.1
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Front panel controls
DAC Box DS
FILTER
INPUT
To switch on from standby or to standby
will toggle the DAC between its fully operational status and standby.
Input selector
Pressing INPUT repeatedly selects the digital inputs in turns. The selected input and the sampling frequency of
the input signal will be shown in the display.
Filter
FILTER will toggle between the two filters available. The selected filter will be shown in the display.

© Audio Trade GmbH · Pro-Ject DAC Box DS · Revision 2012.10.1
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24Bit/kHz192 driver (Windows operating systems only)
*For Windows operating system a 24Bit/kHz192 driver must be installed.
Insert the included CD into the drive of you PC and follow the instructions.
Complete the installation by restarting the computer.
Pro-Ject Direct Streaming - Kernel Streaming (Windows XP®operating system only)
Normally the audio data that comes from CD gets resampled by the Windows®Kernel Mixer. This conversion
process deteriorates the audio performance.
CD device
Kernel Mixer
resampling
to 48kHz
Sound card
48kHz
44,1kHz
Audio output R/L
Pro-Ject Direct Streaming allows bit-by-bit processing. This avoids unwanted signal alteration of the original
signal through by-passing the Windows®Kernel Mixer of your PC.
For replay a suitable software player, like for instance foobar2000, will be needed.
If Pro-Ject Direct Streaming will not be used, any software player will be suitable.
CD device
Kernel Mixer
resampling
to 48kHz
Sound card
44,1kHz
Audio output R/L
Kernel Streaming USB
cable
44,1kHz USB
out
Pro-Ject Direct Streaming and foobar2000 software
Download the software (http://box-designs.com/main.php?prod=dacboxusb&cat=default&lang=en)
and install it. To do so, double-click install.bat and follow the instructions.
Complete the installation by restarting the computer.
Please be aware that downloads from the Internet are made entirely at your own risk. Under no
circumstances can we carry responsibility or provide support for software products sourced from the
internet or for any damage or problems arising from the use thereof. All downloads should be
checked with an up-to-date anti-virus programme. License fees may be applicable.

© Audio Trade GmbH · Pro-Ject DAC Box DS · Revision 2012.10.1
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Technical specifications Pro-Ject DAC Box DS
Line-level output: 1 pair RCA/phono sockets
Output voltage: 2Vrms
Digital outputs: 1 x coaxial (S/PDIF),
1 x optical (TOSlink®),
1 x USB (mini B socket). USB cable supplied
USB input: digital serial data protocol USB 2.0
THD: <0,01%
Operating systems: Windows XP®, Windows VISTA®, Windows 7®and Mac OS®
D/A converter: Burr Brown PCM1792. 24Bit/192kHz, 8-times oversampling
Supported audio format: PCM (LPCM). No support for multi channel formats like Dolby®AC-3 or DTS™
Sampling rates
Coaxial input and USB input: 44,1kHz, 48kHz, 88,2kHz, 96kHz, 176,2kHz and 192kHz
Optical input: 44,1kHz, 48kHz, 88,2kHz and 96kHz
Outboard power supply: 18V/500mA DC; suitable for your country's mains supply
Power consumption: 350mA DC, <1W in standby
Dimensions W x H x D (D with sockets): 103 x 72 x 144 (150)mm
Weight: 1.010g without power supply
Service
Should you encounter a problem which you are not able to alleviate or identify despite the above information,
please contact your dealer for further advice. Only when the problem cannot be resolved there should the
unit be sent to the responsible distributor in your country.
Warranty
The manufacturer accepts no responsibility for damage caused by not adhering to these instructions
for use. Modification or change to any part of the product by unauthorized persons release the
manufacturer from any liability over and above the lawful rights of the customer.
Copyright, trademarks
PRO-JECT is a Registered Trademark of H. Lichtenegger.
This guide was produced by: Audio Trade GmbH
Copyright ©2012. All rights reserved.
The information was correct at the time of going to
press. The manufacturer reserves the right to make
changes to the technical specification without prior
notice as deemed necessary to uphold the ongoing
process of technical development.
Windows XP®, Windows Vista®and Windows 7®are trademarks of the Microsoft group of companies. Mac®
and Mac OS®are trademarks of Apple Inc., registered in the U.S. and other countries. TOSlink®is a
registered trademark of Toshiba corporation. Dolby®is a registered trademarks of Dolby Laboratories. DTS™
is a registered trademark of DTS, Inc..