Pro-Ject Audio Systems Pre Box S User Manual

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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.

Safety instructions

AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the
voltage in your area meets the voltage requirements printed on the power supply.
The power supply is used to disconnect the unit from the mains. Make sure that the power supply is easily

accessible at all times.

Never handle the device, the power supply while your hands are wet or damp.

Avoid letting liquids enter the device or the power supply. Never place any item containing liquid,
such as a flower vase on or near the device. Never spill any liquid on the device or the power supply.
Never place any naked flame sources, such as lighted candles on or near the device. The product shall not

be used in damp or wet locations, next to a bathtub, sink, swimming pool or any other similar conditions.

Connectors

Pro-Ject Audio Systems, Vienna, Austria

18V

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.
Never use any other power supply than the one supplied with the unit.

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 S or Pro-Ject Amp Box S Mono), which corresponds to the position
(on/off) of the power switch on the front panel.
Optional Pro-Ject Switch Box S. The Trigger Switch socket connects the input expander Pro-Ject Switch Box S.
The Switch Box S 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 S. 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.