Audionet STERN Manuale utente
STERN
Ultimate Linear Preamplifier
User’s Manual
HANDMADE
IN BERLIN,
GERMANY
3
Contents
1!Preface 5!
1.1!Included items 6!
1.2!Transport 6!
2!Overview front panel 7!
3!Overview back panel 8!
4!Installation and power supply 9!
4.1!Placement 9!
4.2!Mains connection 10!
4.3!Orientation of mains plug 11!
5!Inputs and outputs 12!
5.1!Inputs 12!
5.2!Outputs 12!
5.3!Bi-Amping 13!
5.4!Audionet Link 13!
6!Operating 15!
6.1!Powering up 15!
6.2!Switching on and off 15!
6.3!Using Audionet Link 16!
6.4!Control elements on the front panel 17!
6.5!Volume control 17!
6.6!Display 19!
6.7!Input selection 20!
6.8!Muting 21!
4
7!Setup Menu 23!
7.1!Global settings: Menu 26!
7.1.1!Display 26!
7.1.2!Balance 27!
7.1.3!Power 28!
7.1.4!By-Pass 31!
7.1.5!Network 36!
7.1.6!Reset 40!
7.1.7!Info 42!
7.2!Channel settings: Options 45!
7.2.1!Offset 45!
7.2.2!DC Servo 46!
7.2.3!Name 47!
7.3!Overview of factory defaults 48!
8!Audionet Metal Remote Control 49!
8.1!Key assignment 49!
8.2!Changing the batteries 50!
8.3!Settings for Audionet preamplifier 50!
9!STERN Control App 52!
10!Network setup 53!
10.1!Connecting to a wireless network 53!
10.2!Setting up the Access Point Mode 55!
10.3!Network trouble shooting 56!
10.4!Updating the STERN 58!
11!Monitoring mains power voltage 60!
12!Technical information 62!
13!Security advice 64!
14!Technical data 65!
5
1 Preface
The Audionet Scientists Team and its leading scholars congratulate you on your
purchase of this unit, sending cheers directly from our research and development
center.
Audionet components are no marketing products, they are authentic. Conceived
and developed with scientific inspiration, professional engineering expertise and
a deep passion for achieving the truly perfect sound. They are unique creations
designed to inspire musical enjoyment and have an excellent reputation amongst
all connoisseurs throughout the world. Each and every one of our precision-man-
ufactured devices is individually crafted by hand at our new Berlin headquarters.
Built by audiophiles for audiophiles. With the utmost precision and total control
of each and every perceptible detail.
Even if you're an experienced aficionado of ultra-highend components, please
start listening to your new Audionet STERN by reading this manual carefully be-
fore you plug it in. This will ensure you'll enjoy all functions of this unit without
any compromise or potential disruption.
6
1.1 Included items
You will find the following items included:
• Stereo preamplifier STERN
• Audionet Metal Remote Control
• WIFI antenna
• Power cord
• Batteries for the remote control
• Allen key for battery replacement
• Covers for serial ports
• Cover bag
• Gloves, 2 pairs
• User's manual (that you are currently reading)
• Red warning note
• Fumigation certificate
1.2 Transport
Important
• Only transport the STERN in the original packaging.
• Always use the provided cloth bag to prevent scratches on the casing.
• Please allow the STERN to adapt to the climatic conditions in your listening
room before you switch the unit on for the first time after the transport.
7
2 Overview front panel
I
2
3
4
I
2
3
4
1power key
2
rotary encoder
3
keys (dynamically assigned functions)
4
display
8
3 Overview back panel
3
4
5balanced (XLR) in 1
6
balanced (XLR) in 2
7
line in 3
8
line in 4
9
line in 5
10
line in 6
11
inverted line out
12
balanced (XLR) out 1
13
balanced (XLR) out 2
14
line out 1
15
line out 2
16
WLAN antenna socket
17
serial port (RS232)
18
‘Audionet Link’ out 1
19
‘Audionet Link’ out 2
20 additional ground terminal
21
‘mains phase’ marking
22
mains input
23
fuse compartment
INPUT RIGHT
AUDIONET LINK
OUT 2
220-240V
50-60Hz
1200W TYP.
SN 501.XX.XX
ENGINEERED AND HANDM ADE BY IDEKTRON GMBH &CO.KG,BERLIN ,GERMANY
DISCONNECT POWER CORD BEFORE OPENING
THIS UNIT MUST BE EARTHED
PHASE
OUT 1
GND RS232 WLAN
INVERTED
6
5
4
3
2
1
XLR 1
XLR 2
LINE 1
LINE 2
INPUT LEFT
OUTPUT RIGHT OUTPUT LEFT
STERN
MAINS
FUSE
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
22
INPUT RIGHT
AUDIONET
LINK
OUT 1
ENGINEERED AND HANDM ADE BY IDEKTRON GMBH &CO.KG,BERLIN ,GERMANY
DISCONNECT POWER CORD BEFORE OPENING
THIS UNIT MUST BE EARTHED
MAINS
FUSE
PHASE
OUT 1
GND
RS232
WLAN
INVERTED654321 XLR 1 XLR 2 LINE 1LINE 2
OUTPUT RIGHT
INPUT LEFT OUTPUT LEFT
220-240V
50-60Hz
1200W TYP.
SN 501.XX.XX
STERN
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
9
4 Installation and power supply
Important
• While connecting and removing sources or amplifiers to the STERN, all units
of your audio system have to be switched off to prevent damage to the
STERN or any connected units.
• Please make sure that all cables are in absolute best conditions! Broken shields
or short-cut cables could damage the STERN and/or any other unit con-
nected.
4.1 Placement
Important
• It is recommended to place the STERN into a highquality rack or onto a stable
table.
• Do not expose the unit to direct sunlight.
• Do not place the STERN in close range to heat sources like radiators.
• Do not place the STERN on top of other units. Especially not on top of power
amplifiers, preamplifiers or similar components that produce heat. Both units
could suffer damage from thermal overload.
• Do not use the unit in places where it is exposed to vibrations.
• Do not place the unit close to loudspeakers or into the corner of a room
where it is exposed to high levels of sonic energy, which might reduce the
sound quality.
10
4.2 Mains connection
The mains input * is on the back panel of the STERN. Use the included power
cord to connect the unit to mains. If you prefer to use a different power cord,
make sure that it meets the specifications for your home country.
Important
• The electrical specifications of your home country must meet the electrical
specifications printed onto the back panel.
• The STERN is a Class I unit and must be earthed. Please ensure a stable earth
connection. The phase ('hot' pin) is marked on the back panel
('PHASE') .
• Never pull the mains plug while the STERN is switched on! Before you pull the
power cord off its socket at the back panel, power down the unit to stand-by
mode first.
The STERN should only be switched off from the mains in cases of extended
absence (like vacations) or if massive trouble on the mains power is to be ex-
pected. Pull the power cord off the mains input socket to completely discon-
nect the unit from mains.
Tip
• The use of high quality power cords could improve the sound quality. Please
ask your local retailer for more information.
*Please refer to the sections "Overview front panel" on page 7 and "Overview back panel" on page 8.
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