Audionet STERN Manual de usuario

STERN

Ultimate Linear Preamplifier

User’s Manual

HANDMADE

IN BERLIN,

GERMANY

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!

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!

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.

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.

2 Overview front panel

1power key

rotary encoder

keys (dynamically assigned functions)

display

3 Overview back panel

5balanced (XLR) in 1

balanced (XLR) in 2

line in 3

line in 4

line in 5

line in 6

inverted line out

balanced (XLR) out 1

balanced (XLR) out 2

line out 1

line out 2

WLAN antenna socket

serial port (RS232)

‘Audionet Link’ out 1

‘Audionet Link’ out 2

20 additional ground terminal

‘mains phase’ marking

mains input

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

XLR 1

XLR 2

LINE 1

LINE 2

INPUT LEFT

OUTPUT RIGHT OUTPUT LEFT

STERN

MAINS

FUSE

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

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.

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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