Specifications
© Audio Trade GmbH · Pro-Ject Head Box DS · Revision 2012.11.1
5
Technical specifications Pro-Ject Head Box DS 
Power output:  350mW/30ohms, 60mW/300ohms 
Headphone connection:  >30ohms 
Signal to noise:  112dB (A weighted) at full output 
Frequency response:  20Hz - 20kHz/-0,5dB 
THD: 0,00% 
Gain: 9dB 
Headphone jack:  3-pole ¼“ (6,3mm ) co-axial jack 
Line-level input:  1 pair RCA/phono sockets 
Line-level output:  1 pair RCA/phono sockets 
A/D-converter:  Cirrus Logic CS4344. 
 24Bit/192kHz Delta Sigma-D/A-Wandler 
Supported audio format:  PCM (LPCM). No support for multi channel formats like Dolby
®
 AC-3 or DTS
™
Sampling rates   
USB input:  44,1kHz and 48kHz 
Optical input:  44,1kHz, 48kHz, 88,2kHz and 96kHz 
Coaxial input:  44,1kHz, 48kHz, 88,2kHz, 96kHz, 176,4kHz and 192kHz 
USB input:  5 pin mini b connector (USB cable supplied) 
USB signal:  digital serial data protocol USB 2.0 
Operating systems:  Windows XP
®
, Windows VISTA
®
, Windows 7
®
 and Mac OS
® 
Outboard power supply:  18V/1.000mA DC, suitable for your country's mains supply 
Power consumption:  500mA DC, <1W in standby 
Dimensions W x H x D (D with sockets):  103 x 72 x 144 (150)mm 
Weight:  990g 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. Dolby
®
 is a registered 
trademarks of Dolby Laboratories. DTS
™
 is a registered trademark of DTS, Inc.. 





