Pro-Ject Audio Systems Amp Box RS Mono Manuale utente

INSTRUCTIONS FOR USE

Pro-Ject Amp Box RS Mono

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.

Tube produces heat. Proper ventilation has to be guaranteed all the time. The unit must not be stacked.

Connectors

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

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 socket In is for connecting the cables from your pre-amp or AV processor. The push button next to the input

socket, selects the inputs.

Connection to the speakers

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

or naked wire.

PUSH

2x48V=

Amp Box RS mono

RCA

XLR

Pro-Ject Audio Systems, Vienna, Austria

Mains power connection

Connect the low voltage plug from the power supply to the 2x48V= socket of the amplifier before

connecting the power supply to the mains.

To switch on from standby or to standby

The switch on the left hand side of the front panel turns the unit on or back into standby. The blue LED above

the stand-by switch shows that the unit is switched on.

After switching on, the tubes need a short time to reach the correct operating temperature. During

warm up the blue LED above the stand-by switch is blinking.

We recommend to set the pre amplifies volume control to 0, prior to switching on.

Technical specifications Pro-Ject Amp Box RS Mono

Tubes: 1 x ECC88 (6922)

Power output: 120W/180W at 8 ohms/4 ohms

Frequency response: 20Hz - 50kHz (-0,8dB, -3dB)

Channel separation: >100dB bei 20kHz

Noise floor: >-100dB (A weighted)

THD: <0,05% at 100W

Gain: 26dB

Pre in: 1 RCA/phono socket

1 XLR socket. Wiring: 1 ground, 2 “hot” and 3 “cold”

Input sensitivity: 1,35V

Input impedance: 22kohms

Speaker connectors: 4mm banana plugs, spades connectors or naked wire

Outboard power supply: ±48V/2,5A DC, suitable for your country's mains supply

Power consumption: 2,5A DC, <1W in standby

Dimensions W x H x D (D with sockets): 206 x 72 x 200 (220)mm

Weight: 1.890g 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 if the problem cannot be resolved there, the unit should 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 changes 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

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.

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