Pro-Ject Audio Systems Pro-Ject Tube Box SE Instructions For Use Download Page 3

© Audio Trade GmbH · Pro-Ject Tube Box SE · Revision 28.4.06/1.5.06

 

 

3

Connection to the amplifier 

Connect the 

OUT

 of the Tube Box to a line input (such as 

AUX

CD

Tuner

Tape

 or 

Video

) on your amplifier. 

Take care to connect the left and right channels correctly. The right channel is usually marked red, the left 
channel black or white. 

!

 

Make all connections whilst the Tube Box is disconnected from the power supply. 
Do not connect the Tube Box output to a phono input (sometimes labelled 

gram

disc

 or 

RIAA

) on the 

amplifier. 

Mains power connection 

The Tube Box 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

 

AC 16V

 socket of the Tube Box before connecting the power supply to the 

mains. The blue LED on the unit's front will light up once the Tube Box is properly connected to the power supply. 

Technical specifications  Pro-Ject Tube Box SE 

Type of tubes 

2 x ECC83 (12AX 7A) 

THD 0,05% 
Gain, MM / MC 

40dB / 60dB 

Output voltage typically 

300mV at 1kHz for 3mV (MM Input) / 0,3mV (MC input) 

Input impedance, MM / MC 

47kohms/100pF / 100ohms, 220ohms, 1kOhm/100pF 

Noise floor, MM / MC 

98dB / 79dB 

RIAA-equalisation curve accuracy 

max. 0,25dB/20Hz - 20kHz 

Subsonic filter 

at 18Hz with 18dB/octave 

Power consumption 

16V/850mA AC 

Outboard power supply 

16V/1.000mA AC, suitable for your country's mains supply 

Dimensions (W x H x D) 

130 x 79 x 176mm 

Weight without power supply 

1.000g 

Potential incorrect use and fault conditions 

No signal on one or both channels: 

 

No connection between player and phono amplifier ore 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: 

 

MM / MC Mode 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. 

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

This guide was produced by: Audio Trade GmbH 
Copyright © 2006. 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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