Pro-Ject Audio Systems Amp Box User manual

INSTRUCTIONS FOR USE
Pro-Ject Amp Box

© Audio Trade GmbH · Pro-Ject Amp Box · Revision 15.10.10/15.12.10
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
!
Make all connections whilst the amplifier is disconnected from the power supply.
Connection to the preamplifier
The Input sockets marked Left / Right are for connecting the cables from your pre-amp or AV processor.
!
Take care to connect the left and right channels correctly. The right channel is usually marked red, the
left channel black or white.
Connection to the speakers
The output terminals accept loudspeaker cables terminated with 4mm ∅Banana plugs, spades connectors
or naked wire.
!
Only connect one loudspeaker with an impedance not less than 4 Ohm per channel.
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.
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 socket of the amplifier before connecting the power supply to the mains.
!
Never use any other DC power supply other than the one supplied with the unit.
Remote power on
The amplifier can be switched on & off via a special connection from the Pro-Ject Pre Box 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.
Stand-By
The Power button 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 · Revision 15.10.10/15.12.10
3
Technical specifications Pro-Ject Amp Box
Power output: 2 x 20W/30W at 8ohms/4ohms (both channels driven)
Frequency response: 5Hz - 20kHz (+ 0dB, - 0,5dB)
Channel separation: > 40dB at 20kHz
Noise floor: > -100dB (A weighted)
THD: < 0,05% at 10W
Gain: 22dB
Pre in: 1 pair RCA/Phono sockets
Input sensitivity: 1V
Input impedance: 47kohms
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 jack
Outboard power supply: 20V/3A DC (peak 7A DC), suitable for your country's mains supply
Power consumption: 20V/3A DC
Dimensions W x H x D (D with sockets): 103 x 36 x 103 (122)mm
Weight: 670g 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 © 2007. 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.