Box-Design Pro-Ject Optical Box E Manuale utente

INSTRUCTIONS FOR USE

Pro-Ject Optical Box E

Dear music lover,

thank you for purchasing this Pro-Ject Audio phono amplifier with A/D converter.

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 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.

Connectors

Make all connections whilst the phono 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.

Do not connect the phono amplifiers output to a phono input (sometimes labelled

gram

disc

RIAA

) on the amplifier.

Never use any other power supply than the one supplied with the unit.

Connecting the record player or a line level source

Connect the tonearm signal lead to the sockets

Phono In

of the phono amplifier. Connect the earthing wire of

the tonearm signal lead to the screw terminal, if you encounter hum problems. The signal lead of a line level

source has to be connected to the socket

Line In

(jack 3.5mm).

Input selector

Operating the push button

Phono/Line

selects the inputs. “Phono” activates signal from

Phono In

RCA

sockets, “Line” activates line level input

Line In.

Connection to the amplifier (Soundbar, AV receiver etc.)

The unit provides analogue and digital output connection.

Use the analogue

Line Out

output of the unit for connection to a line input (such as

AUX

Tuner

Tape

Video

) in your amplifier.

Alternatively the built-in Analogue-to-Digital converter allows to relay signal from inputs (Phono or Line) in

digital format (24bits/96kHz) out of the unit using

Optical Out

digital output to the corresponding digital

input of the amplifier or any Soundbar, AV-receiver etc.

Output signal is always present on both outputs (analogue and digital).

Mains power connection

Connect the low voltage plug from the power supply to the Power 18V socket of the phono amplifier before

connecting the power supply to the mains.

Technical specifications Pro-Ject Optical Box E

Gain, MM: 34dB

SNR: 74dB

THD+N: 0,02% @ 1kHz

RIAA-equalisation curve accuracy: 20Hz - 20kHz / max. 0,5dB

A/D converter: PCM1808, 24bit/96kHz

Outboard power supply: 18V/500mA DC, suitable for your country's mains supply

Power consumption: 200mA DC

Dimensions W x H x D (D with sockets): 120 x 32 x 100 (106)mm

Weight: 250g without power supply

Potential incorrect use and fault conditions

No signal on one or both channels:

No connection between signal source 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.

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 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 deeme

d necessary to uphold the ongoing

process of technical development.

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