2. Pro-Ject
  3. Optical Box E Phono Amplifier
Optical Box E Phono Amplifier

Pro-Ject Optical Box E Phono Amplifier, Pro-Ject Optical Box E Phono Amplifier User manual

  • Hello! I've reviewed the user manual for the Pro-Ject Audio Systems Optical Box E Phono. This device is a phono amplifier with an integrated A/D converter. It has both analog and digital outputs. You can switch the A/D converter sampling frequency and select between phono and line inputs. I'm ready to answer any questions you might have about this device.
  • What kind of inputs does the device have?
    How can I select between the phono and line inputs?
    What kind of digital output does the device have?
    How can I set the sampling frequency of the A/D converter?
BY
PRO-JECT
AUDIO
SYSTEMS
INSTRUCTIONS
FOR
USE
Pro-Ject
Optical
Box E Phono
Dear music lover,
thank you
for
purchasing a Pro-Ject Audio phono amplifier with
ND
converter.
In
order to achieve maximum performance and reliability you should study these instructions
for
use
carefully.
W Warning of o hazard
for
the user, the
unit
or possible misuse
~
Important notice
Connectors
Phonoln
GND Left Right
0
..
Line
~
Phono
Line
Line
•••
Pro-Ject Audio Systems, Vienna, Austria
Optical
Out Power
18V==
-
RoHS
Make
all
connections
whilst
the phono amplifier
is
disconnected
from
the power supply.
Toke
core
to
connect the left and
right
channels
correctly.
The
right
channel is usually marked
red,
the left channel block
or
white.
Input
selector
Do
not connect the phono amplifiers output
to
o phono input (sometimes lobe/led gram, disc
or
RIM
) on the amplifier.
Never use any other power supply than the
one
supplied
with
the
unit.
Operating the push button Phono/Line selects the inputs. "Phono" represents signal from Ph
ono
In
RCA
sockets. "Line" activates line level input Line In (jock 3.5mm).
Connecting
the
record
player
Input button
set
to
"Phono".
Connect the tonearm signal lead
to
the Phono In
RCA
sockets
of
the phono preamplifier. The earthing wire may
be connected
to
the screw terminal
GND
if you encounter hum problems when using the record player.
Line level
input
Input button set
to
"Line".
A line level signal source (e.g. tape deck
or
reel deck) con be connected
to
the unit using Line In socket.
Integrated
A/D
converter relay the signal
to
digital data using
Optical
Out
.
Sampling frequency
A
dip
switch located on the bottom
of
the unit
sets
the
ND
converter output sampling rote
to
96kHz
or
48kHz.
The
Switch
set
towards bock side (to the connectors) represent 48kHz. Some
of
the amplifiers (soundbors etc.)
cannot handle sampling frequency higher than 48Hz.
Connection to the amplifier (Sound Bar, 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
AU
X,
CD
, Tuner, Tope
or
Video)
in
your amplifier.
2 © Pro-Jee!
Audio
Systems · Pro-Ject
Optical
Box
E Phone (from S/ N 1
7FO
11039) · Revision 2017.8.15
Alternatively the built in AD converter allows
to
relay signal from inputs (Phono
or
Line)
in digital format out
of
the unit using
Optical
Out
digital output
to
the corresponding digital input
of
the amplifier
or
any Sound Bar,
AV-receiver etc.
~
Both outputs (analogue and digital) run simultaneously.
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 Phono
Goin,
MM:
34dB
SNR:
74dB
THD+N:
0,02%@
l kHz
RIM-equalisation curve accuracy: 20Hz -20kHz / max. 0,SdB
AID
converter: PCM
1808,
24bit
/96kHz (switchable to 48kHz)
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 l
00
(106)mm
Weight:
250g
without power supply
Service
Should you encounter a problem which you ore not able
to
alleviate
or
identify despite the above information,
please contact your dealer
for
further advice.
Only
when the
prob
lem 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.
Copyright, trademarks
Pro-Jed Audio
Systems
is a Registered Trademark
of
H.
Lichtenegger.
This
guide was produced
by:
Pro-Ject Audio
Systems
Copyright c
2017.
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.
©
Pro-Ject
Audio
Systems
·
Pro-Ject
Optical
Box
E
Ph
o no
(from
S/N l
7F01
l 039) ·
Re
v
ision
2017.8.
15
3
/