Instruction Manual
© Pro-Ject Audio Systems · Pro-Ject Power Box RS Uni & Uni 4-way · Revision 2014. 9.3 
3 
Main power switch 
The switch on the left side turns the unit on or off. The blue LED above the switch shows that the unit is switched 
on. 
Technical specifications Pro-Ject Power Box RS Uni 1-way & Uni 4-way 
Input voltage:   AC 230V/50Hz IEC C15 connector (120V/60Hz US) 
Output voltage / current:  1 x 20V / 3A max. (1-way) 
  4 x 20V / 3A max. (4-way) 
Filtration capacity:  1 x 10.000 µF (1-way) 
  4 x 10.000 µF (4-way) 
Output voltage ripple rejection:  better than 75dB 
Dimensions W x H x D:  201 x 72 x 195mm 
Weight:  4,8kg 
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 if the problem cannot be resolved there, the unit should 
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  changes  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 Audio Systems is a registered Trademark of  
H. Lichtenegger. 
This guide was produced by: Pro-Ject Audio Systems 
Copyright 
©
 2014. 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. 



