- No category
advertisement
INSTRUCTIONS FOR USE
Pro-Ject Phono Box S
Dear music lover, thank you for purchasing a PRO-JECT AUDIO phono 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.
Settings
Use the dip switches at the bottom of the unit to set gain, load capacity and load impedance.
Please set both channels equally.
To find out which type your cartridge is please consult the literature accompanying your cartridge.
The literature for cartridges should also specify the correct load impedance (low-output MC cartridges) and the correct load capacity (high-output MC and MM cartridges), into which the cartridge is designed to work.
If in doubt please consult your dealer.
!
To alter settings the unit must be disconnected from the power supply and the amplifier.
Gain
40dB 43dB
ON ON
1 2 3 1 2 3
60dB
ON
1 2 3
63dB
ON
1 2 3
GAIN
ON
1 2 3 4 5 6 7 8
Load impedance/load capacity – high-output MC and MM cartridges
pF pF
47k
ON
4 5 6
+
100pF 200pF
ON ON
7 8 7 8
320pF 420pF
ON ON
7 8 7 8
GAIN
ON
1 2 3 4 5 6 7 8
Load impedance – low-output MC cartridges
* Load capacity is irrelevant for low-output MC cartridges
10
ON
100
ON
1k
ON
GAIN
ON
10 100 1k pF pF
100 220
4 5 6 4 5 6 4 5 6
1 2 3 4 5 6 7 8
Examples of typical settings
Ortofon 2M Red (MM) - gain 40dB, load capacity 200pF, load impedance 47kohms
Ortofon X1-MC (high-output MC) - gain 43dB, load capacity 420pF, load impedance 47kohms
Ortofon Rondo Red (low-output MC) - gain 60dB, load capacity *, load impedance 10ohms
2
© Audio Trade GmbH · Pro-Ject Phono Box S · Revision 2012.6.1
Subsonic filter
OFF
A switch at the back of the phono amplifier activates and deactivates the subsonic filter.
ON
Subsonic
Connecting the record player
Connect the tonearm signal lead to the In of the phono amplifier. The earthing wire may be connected to the screw terminal if you encounter hum problems when using the record player.
Take care to connect the left and right channels correctly. The right channel is usually marked red, the left channel black or white. The earthing wire of the tonearm lead should be connected to the earth terminal.
OFF
ON
18V
Subsonic
Pro-Ject Audio Systems, Vienna, Austria
Connection to the amplifier
Connect the Out of the phono amplifier to a line input (such as AUX, CD, Tuner, Tape or Video) on your amplifier.
Take care to connect the left and right channels correctly. The right channel is usually marked red, the left channel black or white.
!
Make all connections whilst the phono amplifier is disconnected from the power supply.
Do not connect the phono amplifiers output to a phono input (sometimes labelled gram, disc or RIAA) on the amplifier.
Mains power connection
The phono amplifier 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 18V to the mains.
" socket of the phono amplifier before connecting the power supply
!
Never use any other power supply than the one supplied with the unit.
Stand-By
The button on the front panel of the unit alternately turns the power on or returns it to standby mode. The blue
LED above the stand-by push button shows that the unit is switched on.
© Audio Trade GmbH · Pro-Ject Phono Box S · Revision 2012.6.1
3
Technical specifications Pro-Ject Phono Box S
Load capacity:
Load impedance:
Gain:
Noise floor:
100, 200, 320 and 420pF with 47kOhms setting only.
Together with other load impedance settings without any influence!
10, 100 Ohm, 1kOhm, typical for low output MC cartridges
47kOhm, typical for MM or high output MC cartridges
40 and 43dB, typical for MM or high output MC cartridges
60 and 63dB, typical for low output MC cartridges
86dB (94dB – IEC -A) at 40 and 43dB gain
68dB (75dB – IEC -A) at 60 and 63dB gain
THD:
RIAA-equalisation curve accuracy:
Subsonic filter:
Input:
Line-level output:
Outboard power supply:
Power consumption:
<0,01% at 40 and 43dB gain
<0,05% at 60 and 63dB gain
20Hz - 20kHz / max. 0,4dB at 20Hz with 12dB/octave
1 pair RCA/phono sockets
1 pair RCA/phono sockets
18V/500mA DC, suitable for your country's mains supply
85mA DC
Dimensions W x H x D (D with sockets): 103 x 36 x 104 (115)mm
Weight: 570g without power supply
Potential incorrect use and fault conditions
No signal on one or both channels:
No connection between player and phono amplifier or amplifier. This could be due to a faulty plug, broken wire or solder joint or simply loose plug/socket connection.
Strong hum:
No earth connection from cartridge or arm, or arm cable to phono amplifier, or earth loop.
Output too quiet or too loud, or distorted:
MM / MC mode incorrectly set - input overloading or insufficiently amplified.
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
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.
4
© Audio Trade GmbH · Pro-Ject Phono Box S · Revision 2012.6.1
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project