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© Audio Trade GmbH · Pro-Ject Phono Box DS · Revision 2013.7.15 

 

4

Technical specifications  Pro-Ject Phono Box DS 

A

 Typical for low output MC cartridges, 

B

 typical for MM or high output MC cartridges 

* Input capacitance is irrelevant for low-output MC cartridges 
Input impedance: 

10ohms, 100ohms, 1kohm

 A

 

Input capacitance/impedance: 

47pF, 147pF, 267pF and 367pF */47kohms

 B

 

Input gain: 

40

 B

 / 50 and 60dB

 A

 

Noise floor: 

80dB (A weighted) at 40dB input gain 

THD: <0,02% 
RIAA-equalisation curve accuracy: 

20Hz - 20kHz / max. 0,3dB 

Subsonic filter: 

at 20Hz with 12dB/octave 

Input: 

1 pair RCA/phono sockets 

Line-level output: 

1 pair RCA/phono sockets 

Outboard power supply: 

18V/500mA DC, suitable for your country's mains supply 

Power consumption: 

100mA DC, <1W in standby 

Dimensions W x H x D (D with sockets):  103 x 72 x 144 (156)mm 
Weight: 

1.100g without power supply 

Potential incorrect use and fault conditions 

No signal on one or both channels: 
 

No connection between player and phono amplifier or amplifier. This could be due to a faulty plug, 

 

broken wire or solder joint or simply loose plug/socket connection. 

Strong hum: 

 

No earth connection from cartridge or arm, or arm cable to phono amplifier, or earth loop. 

Output too quiet or too loud, or distorted: 
 

Input gain incorrectly set - input overloading or insufficiently amplified. 

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 

PRO-JECT is a Registered Trademark of H. Lichtenegger. 

This guide was produced by: Audio Trade GmbH 
Copyright 

©

 2013. 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.

 

 

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