Product information

Pro-Ject Tube Box SE II

Tube MM/MC Phono Pre-amplifier
Good sound from sound technology
Metal case shields the electronics from vibrational and electromagnetic interference Selectable impedance for MC cartridges Selectable load resistance for MM cartridges Dual-Mono circuitry utilising two double triodes for improved channel separation Subsonic filter selection switch located at the rear of the unit Gold plated RCA connection sockets Outboard power supply included

Features

Amplification and RIAA equalisation for MM and MC cartridges

Technical specifications

Tubes: Input impedances, MM: Input impedances, MC: Output voltage: Gain, MM: Output voltage: Gain, MC: Noise floor, MM: Noise floor, MC: THD MM: THD MC: RIAA-equalisation curve accuracy: Subsonic filter: Outboard power supply: Power consumption: Dimensions W x H x D (D with sockets): Weight: 2 x ECC83 (12AX 7A) 120, 220, 340 and 440pf/47kohm 17, 18, 20, 22, 69, 100 and 220ohms/120pF 300mV/1kHz at 3mV (MM input) 40dB 300mV/1kHz at 0,3mV (MC input) 60dB 95dB (100dB / A weighted) 75dB (80dB / A weighted) 0,03% 0,1% 20Hz - 20kHz / max. 0,3dB at 18Hz with 24dB/octave 16V/1.000mA AC, suitable for your country's mains supply 16V/850mA AC 103 x 72 x 144 (156)mm 1.050g without power supply
The manufacturer reserves the right to alter the technical specifications without notice. Available in silver or black finish
Pro-Ject Audio Systems is a registered trademark of Heinz Lichtenegger 1050 Vienna Margareten Road 98 Tel. +43(0)15448580 Fax. +43(0)15456697 www.project-audio.com Heinz Lichtenegger Revision 1.6.10

INSTRUCTIONS FOR USE

Pro-Ject Tube Box II
Dear music lover, thank you for purchasing a PRO-JECT AUDIO phono amplifier. In order to achieve maximum performance and reliability you should study these instructions for use carefully.
Warning of a hazard for the user, the unit or possible misuse. Important notice.
Setting the cartridge mode
The Phono Box must be used in either MM (moving magnet) or MC (moving coil) mode according to the construction principle of the pickup cartridge to be used. To find out which type your cartridge is please consult the literature accompanying your cartridge. If in doubt please consult your dealer. A switch at the back of the Tube Box sets the correct level of amplification for the cartridge.
Before setting MM / MC mode the unit must be disconnected from the power supply and amplifier.

Subsonic filter

A switch at the back of the Tube Box activates and deactivates the subsonic filter.
Connecting the record player
Connect the tonearm signal lead to the In of the Tube Box. The earthing wire may be connected to the screw terminal if you encounter hum problems when using the record player. Take care to connect the left and right channels correctly. The right channel is usually marked red, the left channel black or white.
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.
Audio Trade GmbH Pro-Ject Tube Box II Revision 15.10.10/15.12.10

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): Weight: 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 103 x 76 x 125 (137)mm 810g without power supply
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. The information was correct at the time of going to press. The manufacturer reserves the right to make This guide was produced by: Audio Trade GmbH changes to the technical specification without prior Copyright 2005. All rights reserved. notice as deemed necessary to uphold the ongoing process of technical development.