INSTRUCTIONS FOR USE
Pro-Ject Stereo Box S Phono
© Pro-Ject Audio Systems · Pro-Ject Stereo Box S Phono · Revision 2015.1.8
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Dear music lover,
Warning of a hazard for the user, the unit or possible misuse.
Important notice.
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.
1. Make all connections, except the connection to the headphone and USB, whilst the unit is
disconnected from the mains.
2. Never connect or disconnect power supply to or from the unit whilst the power supply is connected
to the mains! Never use any other power supply than the one supplied with the unit with the exception
of dedicated Power Boxes which can replace original power supplies.
3. Take care to connect the left and right channels of In1, In2, In3, In4 correctly. The right channel is
usually marked red, the left channel black or white.
4. Speaker connections for the left speaker are located on the right hand side of rear view above,
connections to right speaker are located near the power socket. Speaker connectors marked red
represent + according indicators on speaker terminal. 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.
!
!
Thank you for purchasing a Pro-Ject Audio Systems integrated amplifier.
In order to achieve maximum performance and reliability you should study these instructions for use carefully.
Safety instructions
Connectors
Connecting the record player (MM or high output MC cartridges only)
Connect the tonearm signal lead to the IN1. The earthing wire may be connected to the screw terminal if you
encounter hum problems when using the record player.
Connecting line level sources
Line level sources such as CD player, radio or TV can be connected to the input sockets marked IN2, IN3 or
IN4.
© Pro-Ject Audio Systems · Pro-Ject Stereo Box S Phono · Revision 2015.1.8
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Record output
OUT Fix provides a fixed output level.
turns the unit on or back into standby
and adjust the sound volume
and select the inputs
CH+
CH-
VOL+
VOL-
ON/OFF
1
ON/OFF
0
VOL
0
+
VOL
0
CH
0
+
CH
OUT Fix connects an analogue record device or a Pro-Ject Head Box headphone amplifier.
Pre Out
A power amplifier or active loudspeakers can be connected to the output sockets marked OUT Var.
Connection to the speakers
The output terminals accept loudspeaker cables terminated with 4mm Banana plugs, spades connectors
or naked wire.
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 20V DC socket before connecting the power supply to the mains.
Remote control
Front panel controls
To switch on from standby or to standby
The push button on the left side of the front panel turns the unit on or back into standby. The blue LED above
the stand-by push button shows that the unit is switched on.
Input selector
After the unit is powered on, pressing the buttons◄ and ► next to the LEDs inputs indicators selects
desired input.
Volume
Adjust the volume to the desired level, using the large knob on the front panel.
© Pro-Ject Audio Systems · Pro-Ject Stereo Box S Phono · Revision 2015.1.8
4
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.
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 Audio Systems is a Registered Trademark of
H. Lichtenegger.
This guide was produced by: Pro-Ject Audio Systems
Copyright © 2015. All rights reserved.
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.
Technical specifications Pro-Ject Stereo Box S Phono
Power output: 2 x 25W/37W at 8 ohms/4 ohms (both channels driven)
Frequency response: 20Hz - 20kHz (- 1,5dB)
Channel separation: > 40dB at 20kHz
Noise floor: > -100dBA
THD: <0,1% at 10W
Gain: 31dB
Line-level inputs: 3 pairs RCA/phono sockets (IN2,IN3,IN4)
Phono input: 1 pair RCA/phono sockets (IN1)
Phono amplifier Moving magnet (MM)
RIAA-equalisation curve accuracy 20Hz - 20kHz / max. 0,5dB
Input impedance: 20kohms
Speaker connectors: 4mm banana plugs, spades connectors or naked wire
Outboard power supply: 20V/3A DC, suitable for your country's mains supply
Power consumption: 3A DC, <1W in standby
Replacement battery remote control: 1 x CR2032 / 3V or 1 x CR2025 / 3V
Dimensions W x H x D (D with sockets): 206 x 40 x 150 (165)mm
Weight: 1120g without power supply
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
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