Pro-Ject Audio Systems AMP BOX DS User manual

INSTRUCTIONS FOR USE
Pro-Ject Amp Box DS

© Audio Trade GmbH · Pro-Ject Amp Box DS · Revision 2012.9.1
2
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.
Connectors
Trigger
IN
OUT
2x48V=
Pro-Ject Audio System
Vienna, Austria
Amp Box DS
!
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.
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 2 ohms per channel.
Never use any other power supply than the one supplied with the unit.
Connection to the preamplifier
The RCA/cinch sockets marked Left /Right are for connecting the cables from your pre-amp or AV processor.
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 2x48V= socket of the amplifier before connecting the power supply to the mains.
Remote power on
The amplifier can be switched on & off via a special connection from the Pro-Ject Pre Box SE via the 2,5mm
socket marked Trigger IN.
A 45cm long power-on cable (polarity
+
) is supplied for this purpose. Longer cables are available as
accessories. The remote power-on signal can be relayed to further units via the Trigger OUT socket.
To switch on from standby or to standby
The pushbutton on the front panel of the unit alternately turns the power on or returns it to standby mode. The
blue LED on the front panel shows that the unit is powered on.

© Audio Trade GmbH · Pro-Ject Amp Box DS · Revision 2012.9.1
3
Technical specifications Pro-Ject Amp Box DS
Power output: 2 x 100W/180W at 8 ohms/4 ohms (both channels driven)
2 ohms drive capability
Frequency response: 10Hz - 50kHz (+0dB, -3)
Channel separation: > 40dB at 20kHz
Noise floor: > -90dB (A weighted)
THD: < 0,1% at 90W
Gain: 26dB
Pre in: 1 pair RCA/phono sockets
Input sensitivity: 1,5V
Input impedance: 100kohms
Speaker connectors: 4mm banana plugs, spades connectors or naked wire
Trigger: 12V DC switching voltage
Trigger in and out: 2-pole co-axial 2,5mm co-axial jack
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): 103 x 72 x 144 (163)mm
Weight: 1.400g 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
Copyright ©2012. 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.