Mains Power Connection; Technical Specifications Pro-Ject Tube Box Ii; Potential Incorrect Use And Fault Conditions; Service - Pro-Ject Audio Systems Tube Box II Instructions For Use

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 ~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 II

Tubes:
Input impedance, MM / MC:
Gain, MM / MC:
Output voltage typically, MM / MC:
Noise floor, MM / MC:
THD, MM / MC:
RIAA-equalisation curve accuracy:
Subsonic filter:
Input:
Line-level output:
Outboard power supply:
Power consumption:
Dimensions W x H x D (D with sockets): 103 x 76 x 125 (137)mm
Weight:

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 © 2005. All rights reserved.
2 x ECC83 (12AX 7A)
47kohms/120pF / 100ohms/120pF
40dB / 60dB
300mV at 1kHz for 3mV (MM Input) / 0,3mV (MC input)
84dB (94dB - A weighted) / 67dB (75dB - A weighted)
0,05% / 0,08%
20Hz - 20kHz / max. 0,5dB
at 18Hz with 18dB/octave
1 pair RCA/Phono sockets
1 pair RCA/Phono sockets
16V/1.000mA AC, suitable for your country's mains supply
16V/410mA AC
810g without power supply
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.
© Audio Trade GmbH · Pro-Ject Tube Box II · Revision 15.10.10/15.12.10
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