Pro-Ject Audio Systems Pre Box Manual de usuario

INSTRUCTIONS FOR USE

Pro-Ject Pre Box

Dear music lover,

thank you for purchasing a PRO-JECT AUDIO preamplifier.

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.

Connectors

Make all connections whilst the preamplifier is disconnected from the power supply.

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

the left channel black or white.

Pre out

A power amplifier or active loudspeakers can be connected to the output sockets marked Out.

Inputs

Line level sources such as CD player radio or TV can be connected to the input sockets marked In 1 or In 2.

Remote power-on, switching voltage

The socket marked Trigger Amp provides a 12V DC switched output voltage for remote power-on of units with

this facility (such as the Pro-Ject Amp Box or Pro-Ject Amp Box Mono), which corresponds to the position (on/off)

of the power switch on the front panel.

Optional Pro-Ject Switch Box. The Trigger Switch socket connects the input expander Pro-Ject Switch Box.

The Switch Box provides three extra line-level inputs.

A 45cm remote power-on cable (polarity

) is supplied with the Pro-Ject amplifiers for connecting the

remote-switched power socket to the Pro-Ject Pre Box. Longer cables are available from your Pro-Ject dealer.

Do not use this trigger output for any other connections for which it is not designed.

Mains power connection

The unit 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 before connecting the power supply to the mains.

Remote control

ON/OFF

turns the unit on or back into standby.

The blue LED on the front panel shows that the unit is powered on.

VOL

and

VOL

adjust the sound volume

CH+

CH-

VOL+

VOL-

ON/OFF

and

select the inputs

Front panel controls

Pre Box

Power

Volume

Input

Select

Stand-By

The switch marked Power on the front turns the unit on or back into standby. The blue LED on the front panel

shows that the unit is powered on.

Input selector

Pressing the Input Select button selects the In 1 and In 2 inputs in turn. If Input 1is selected, the LED over the

Input Select button lights up green. If Input 2 is selected, it lights up red.

If the optional input expander Pro-Ject Switch Box is connected, Input Select will also select the additional

inputs provided by the Switch Box. For further details please see the user guide of the Pro-Ject Switch Box.

Volume

Adjust the volume to the desired level using the large knob marked Volume on the front panel.

Replacing batteries

Proceed as follows:

• Unlock and slide open the battery case cover

• Replace the battery.

Make sure the battery is the right way round !

• Close the battery case cover

Battery type: 1 x CR2032 / 3V or 1 x CR2025 / 3V

Do not dispose the batteries as ordinary domestic refuse. Please dispose your exhausted batteries at

the appropriate collection sites - usually located at supermarkets and drugstores.

Technical specifications Pro-Ject Pre Box

Frequency response: 20Hz - 20kHz (±0,2dB)

Noise floor: -100dB (A weighted)

THD: 0,001%

Gain: 8,5dB

Pre out: 1 pair RCA/Phono sockets

Output voltage typically: 1V at 1kHz

Line-level inputs: 2 pairs RCA/Phono sockets

Input impedance: 20kohms

Trigger Amp: 12V DC switching voltage

Trigger Amp: 2-pole 2,5mm co-axial jack

Trigger Switch: 2-pole 2,5mm co-axial jack

Outboard power supply: 16V/500mA AC, suitable for your country's mains supply

Power consumption: 16V/200mA AC

Replacement battery remote control: 1 x CR2032 / 3V or 1 x CR2025 / 3V

Dimensions W x H x D (D with sockets): 103 x 36 x 103 (109)mm

Weight: 630g without power supply

Service

Should you encounter a problem which you are not able to alleviate or identify, 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

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.

Tabla de contenidos

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