Pro-Ject Audio Systems Tube Box SE II User Manual

Page 3

Connection to the amplifier

Connect the Out of the phono amplifier 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 phono amplifier is disconnected from the power supply.
Do not connect the phono amplifiers output to a phono input (sometimes labelled gram, disc or RIAA)
on the amplifier.

Mains power connection

The phono amplifier 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 phono amplifier before connecting the power supply to
the mains. The blue LED on the unit's front will light up once the phono amplifier is properly connected to the
power supply.

Technical specifications Pro-Ject Tube Box SE II

Tubes:

2 x ECC83 (12AX 7A)

Input impedance, MM:

120, 220, 340 and 440pF/47kOhm

Input impedances, MC:

17, 18, 20, 22, 69, 100 and 220ohms/120pF

Output voltage:

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

Gain, MM / MC:

40dB / 60dB

Noise floor, MM / MC:

95dB (100dB - A weighted) / 75dB (80dB - A weighted)

THD MM / MC:

0,03% / 0,1%

RIAA-equalisation curve accuracy:

20Hz - 20kHz / max. 0,3dB

Subsonic filter:

at 18Hz with 24dB/octave

Input / line-level output:

1 pair RCA/Phono sockets / 1 pair RCA/Phono sockets

Outboard power supply:

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

Power consumption:

16V/850mA AC

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

1.050g 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
changes to the technical specification without prior
notice as deemed necessary to uphold the ongoing
process of technical development.