Safety instructions, Connectors, Connection to the preamplifier – Pro-Ject Audio Systems Amp Box RS User Manual

Page 2: Connection to the speakers

Dear music lover,
thank you for purchasing a PRO-JECT AUDIO 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.

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 cord is
used to disconnect the unit from the mains. Make sure that the power cord is easily accessible at all

times.

Never handle the device, the power cord/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.
Tubes produce heat. Proper ventilation has to be guaranteed all the time. The unit must not be stacked.

Connectors

Pro-Ject Audio Systems, Vienna, Austria

2x48V=

Amp Box RS

Right

Left

RCA

XLR

PUSH

Make all connections whilst the amplifier 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. Do not connect RCA and XLR inputs simultaneously.
Wiring XLR sockets: 1 ground, 2 “hot” and 3 “cold”.
The red speaker terminals carry the positive signal (+), the black speaker terminals the negative

signal (–). Make sure the polarity of the connection is correct at each end of the cables.
Only connect one loudspeaker with an impedance not less than 4 ohms per channel.
Never use any other power supply than the one supplied with the unit.

Connection to the preamplifier

The sockets In Left / Right are for connecting the cables from your pre-amp or AV processor. The push button

next to the input sockets, selects the inputs.

Connection to the speakers

The output terminals accept loudspeaker cables terminated with 4mm  Banana plugs, spades connectors
or naked wire.