AUDAC IMP40 User manual

IMP40
User Manual
www.audac.eu

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ADDITIONAL INFORMATION
This manual is put togheter with much care, and is as complete as could be on the
publication date. However, updates on the specifications, functionality or software
may have occurred since publication. To obtain the latest version of both manual and
software, please visit the Audac website @ www.audac.eu.

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Index
Introduction 5
Precautions 6
Safety requirements 6
Caution servicing 7
EC Declaration of Conformity 7
Waste of Electrical and Electronic Equipment (WEEE) 7
Chapter 1: Connections and connectors 8
Connection standards 8
Chapter 2: Overview IMP40 9
Chapter 3: Using the IMP40 10
Database updates 10
Module screen 10
Station selection 11
USB backup 12
Settings screen 12
Chapter 4: Installing the IMP40 15
Chapter 5: Additional information 17
IP basics 17
Technical specifications 19
Notes 20

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5
Introduction
SourceCon™ internet audio player module
The IMP40 is a professional internet radio player featuring SourceCon™ modular
technology. This unique technology guarantees true plug & play implementation to any
compatible device. When inserted to a supporting slot, the module is instantly installed,
discovered and ready for operation without requiring any additional internal wiring or
complex configuration.
The IMP40 features the unique Linum™ technology which eleminates any unwanted
behaviour such as sudden channel hopping or music stops. When the connection is
interrupted, automatic switching to inserted media carriers (USB drives) avoids unpleasant
silences in background music applications. The audio stream will be automatically and
seamlessly restored afterwards.
It synchronizes with the vTuner database which contains over 30.000 channels, allowing
selection on different criteria such as genre, location, language, ... while custom streams
can also be added to a preference list up to 100 entries.
The input connection is implemented by an RJ45 type connector with indicator LED’s on
its panel, allowing connection to any ethernet network. The balanced stereo line output
is connected through two 3-pin terminal block connections.

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Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
• ALWAYS KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE. NEVER
THROW THEM AWAY
• ALWAYS HANDLE THIS UNIT WITH CARE
• HEED ALL WARNINGS AND FOLLOW ALL INSTRUCTIONS
• AVOID ELECTROSTATIC DISCHARGE BY TOUCHING GROUNDED POINT BEFORE
REMOVING THE MODULES FROM THEIR PROTECTIVE BAG
• AVOID TOUCHING OF THE COMPONENTS ON THE CIRCUIT BOARD DIRECTLY
• NEVER EXPOSE THIS EQUIPMENT TO RAIN, MOISTURE, ANY DRIPPING OR
SPLASHING LIQUID. NEVER PLACE AN OBJECT FILLED WITH LIQUID ON TOP
OF THIS DEVICE
• DO NOT INSTALL THIS UNIT NEAR ANY HEAT SOURCES SUCH AS RADIATORS
OR OTHER APPARATUS THAT PRODUCE HEAT
• DO NOT PLACE THIS UNIT IN ENVIRONMENTS WITH A HIGH LEVEL OF DUST,
HEAT, MOISTURE OR VIBRATION
• THIS UNIT IS DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS
• ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE
MANUFACTURER.
• UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED
FOR LONG PERIODS OF TIME
• CAREFULLY CHECK THE UNIT’S CONDITION AFTER UNPACKING.
IF THERE IS ANY DAMAGE TO THE CARTON BOX OR THE UNIT ITSELF,
INFORM YOUR VENDOR IMMEDIATELY.
• ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE
EARTHING CONNECTION
• THE INSTALLATION, CONNECTION AND CONFIGURATION OF THE DEVICE
SHOULD BE DONE BY QUALIFIED TECHNICIANS

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CAUTION - SERVICING
This product contains no user serviceable parts. Refer all servicing
to qualified service personnel. Do not perform any servicing
(unless you are qualified to do so.)
EC DECLARATION OF CONFORMITY
This product conforms to all the essential requirements and
further relevant specifications described in following directives:
2004/108/EC (EMC) and 2006/95/EC (LVD)
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
The WEEE marking indicates that this product should not be
disposed with regular household waste at the end of its product
life. This regulation is created to protect both the environment
and human health.
This product is developed and manufactured with high quality
materials and components which can be recycled and/or reused.
Please dispose of this product at your local collection point or
recycling centre for electrical and electronic waste. Do this to
make sure that the product is recycled in an environmental friendly
way, and help to protect the environment in which we all live.
CAUTION
The symbols shown are internationally recognized symbols that warn about potentional
hazards of electrical products. The lightning flash with arrowpoint in an equilateral
triangle means that the unit contains dangerous voltages. The exclamation point in
an equilateral triangle indicates that it is necessary for the user to refer to the users
manual.
These symbols warn that there are no user serviceable parts inside the unit. Do not
open the unit. Do not attempt to service the unit yourself. Refer all servicing to qualified
personnel. Opening the chassis for any reason will void the manufacturer’s warranty.
Do not get the unit wet. If liquid is spilled on the unit, shut it off immediately and take
it to a dealer for service. Disconnect the unit during storms to prevent damage.

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Chapter 1
Connections and connectors
CONNECTION STANDARDS
The in- and output connections for AUDAC audio equipment are performed
corresponding to international wiring standards for professional audio equipment.
3-Pin terminal block:
For balanced in & output connections
Left: Signal - (XLR Pin 3)
Center: Signal + (XLR Pin 2)
Right: Ground (XLR Pin 1)
For balanced line output connections:
For unbalanced line output connections:

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Chapter 2
Overview IMP40
The IMP40 is a SourceCon™ compatible module featuring an (internal) board-edge
connector which carries all signals for getting it connected to any supporting main unit.
All external in & output connections shall be made using the available connectors on
the panel.
1) Balanced stereo line output:
The balanced stereo line output is implemented using two 3-pin terminal block
connectors. The audio output available on this connector allows it to be fed to any
amplifier or pre-amplifier.
2) Ethernet RJ45 connector:
The Ethernet connection implemented using an RJ45 type connectors. This Ethernet
connection works as the audio stream input of the IMP40. Hereby it shall get connected
to any LAN network with internet access for reaching the database and audio streaming
servers.
For more information about the Ethernet configuration of this device, check ‘Chapter 4:
User interface & Configuration’ and ‘Chapter 5: IP Basics’ of this user manual.

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Chapter 3
Using the IMP40
Since the IMP40 is a SourceCon™ module, it can be combined with a variation of
supporting main units. The operation and configuration interface might be different of
the unit where installed, however the offered functionality is identical. Some devices
will support control and configuration through a front panel graphical control interface
on a display, while others are also supporting web-control.
This manual describes the control configuration possibilities using front panel control. For
applications where more control possibilities are offered, check the instruction manual
of the used main device for more instructions.
Database updates
The IMP40 comes with the vTuner database pre-loaded. Since continuously new radio
stations are being added, it is recommended to manually start the database update
process when using it for the first time. How to start the manual update process is
described in the Settings > DB info chapter of this instruction manual.
When operational, the IMP40 will regularly check with the database server whether a new
update is available, and if so, automatically start the database update process without
any noticeable consequences for the user / listener.
Module screen
The module screen gives an overview of the
IMP40’s current operation mode. The name of
the currently playing station including additional
carried information such as track name, program
name, ... will be indicated on this screen.

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Station selection:
The (station list) button gets you to the vTuner database overview where the radio
station selection can be made by hand of various criteria, such as genre, location or
stored favourites.
Settings:
The (settings) button gets you to the settings menu of the IMP40 where all cofigurations
can be made.
Favourites:
The (favourites) button stores the currently playing channel to the favourites list which
can contain a maximum up to 100 enties.
Home:
The (home) button gets you back to the main screen of the device where the IMP40
is installed to.
Station selection
The station selection screen allows radio
stations selection though the vTuner database
which includes over 30.000 channels. Selection
of the radio station is done by hand of various
criteria, such as favourites (includes the stored
channels), location, genre, ...
When the main criteria is selected, the menu will
guide you through the next step of selection criteria including all different continents,
countries, genres, ... and so on.
Browsing through the menu structure is done by turning the function dial, while selections
are made by pressing it. The button gets you one step back in the station selection
overview.
Once the desired channel has been found, press the function dial for selection and the
channel will start playing.
Select file from SD
Hip Hop
Internet Radio
Holiday
Jazz
Latin Hits
New Age

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Output gain
0dB
DB info
IP settings
Station info
Add station
IMP40 SETTINGS
USB Backup
The IMP40 features unique Linum+™ USB backup technology, which automatically
switches to USB playback when the internet audio stream is interrupted. A small internal
buffer memory avoids audio silences for short streaming interrupts, while USB backup
avoids silences when the streaming is interrupted for long periods.
When interrupted, the IMP40 continues to search for the streaming station for about
15 seconds. When the stream is not recovered during this period, it will automatically
switch to playback for the inserted USB carrier (inserted to the corresponding USB slot
on the front panel of the main unit). The USB backup remains repeating (repeat all) in
an endless loop as long as the stream is interrupted.
When the stream is recovered while playing from USB backup, it will automatically switch
back to the internet audio stream. When interrupted again, it will continue to play the
next available backup track.
Settings screen
The settings menu for IMP40 is loaded when pressing the (settings) button.
Output gain:
The gain can be adjusted within a range of +8
dB and -92 dB, allowing optimalization of the
output level according to the input sensitivity of
the connected amplifier or pre-amplifier. For
adjusting the output gain, rotate the function
dial until ‘Gain’ is highlighted and press it for
proceeding to the gain settings. The level can
be adjusted by rotating clockwise (tuning up)
or counter-clockwise (tuning down). Press the rotary dial for confirming the currently
set output level.
DB info:
DB info gives the version information regarding the currently loaded vTuner database
which contains all station information.

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The autoupdate function allows automatic updating of the database. When enabled,
the IMP40 automatically synchronizes with the database server whether a new update
becomes available, and if so, automatically start the database update process without
any noticeable consequences for the user / listener. Autoupdate is standard configured
as ON but can be disabled (switched to OFF).
Manual database updating can be started by selecting ‘Start Database Update’. When
selected, the currently stored database will be removed and the latest version is retrieved
from the server. The database update process can take few minutes before completed.
IP settings:
When highlighting the IP settings button is, an overview of the currently configured
network settings is given on the right screen side. When selected, a separate IP settings
menu will be loaded where all network settings can be customized.
DEFAULT NETWORK SETTINGS
DHCP: ON
IP address: Assigned by DHCP
Subnet mask: Assigned by DHCP
Gateway: Assigned by DHCP
DNS 1: Assigned by DHCP
DNS 2: Assigned by DHCP
IP Settings > DHCP:
In default configuration, the DHCP function for the IMP40 is enabled whereby the IP
address and other network settings are automatically assigned through the DHCP server
in your network.
Since the IMP40 doesn’t support any control commands from other devices over TCP/IP
in contrast to other TCP/IP control supporting devices, the IMP40 doesn’t need to have
a ‘fixed’ for being reachable through other devices.
IP settings > IP address:
The IP address for the system can be configured in this window. Each section of the IP
address can be individually adjusted by turning the rotary dial (clockwise for up, and
counter-clockwise for down). The currently adjusting section will be indicated in blue
colour. Once the correct number for the current section is selected, proceed to the next
section by pressing the rotary dial.

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IP settings > Other network settings:
All other network settings such as subnet mask, Gateway, DNS 1 and DNS 2 can be
configured in this window. The default configuration is set to DHCP, however in case
of special network restrictions or requirements, consult your network administrator for
more details on the network settings.
All additional network settings can be modified in similar way as the IP address, allowing
adjustments by turning and pressing of the rotary dial.
Station info:
Gives additional information about the currently playing station. Displayed information
includes station name, category, country, city, sample rate, bitrate, connections, playtime,
...
Add station:
Custom audio streams (not included in the vTuner database) can be manually added to
the IMP40 stations list. This feature allows specific broadcast streams from corporate
headquarters to various branch offices, or specific audio streams which are not public
accessible to be added to the system.
For adding specific audio streams, the corresponding URL shall get entered to the system,
and a specific stream name shall be given. Entering this data is done by selection of the
characters through turning the function dial, while selections are made by pressing it.
Once the URL is entered, select save to proceed to the stream name. When both are
entered, select save again to confirm stream details and go back to the settings screen.
The entered stream is now added to the favourites list.
Factory reset:
Factory reset will recall all settings to factory defaults and all previously made settings
and configurations will be lost. After selecting factory reset, a confirmation will be asked
whether all settings definitely need to be reset to factory defaults. When confirmed, all
settings will be lost.
Back:
Returning to the module screen is done by selecting ‘Back’.

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Chapter 4
Installing the IMP40
CAUTION
Before installing the IMP40 to any SourceCon™ compatible device,
make sure the power is switched off. Malfunctions or electrical shocks
may occur otherwise.
Step 1:
Make sure that the slot whereto the module should be installed is open and ready for
installation. Depending of the main unit, some module slots will be covered by blind
panels when delivered. The corresponding blind panels should be removed by releasing
the screws on both ends.
Step 2:
Before removing the modules from their protective bag, we recommend touching a
grounded metal chassis (or any other grounded point) to prevent electrostatic discharges
affecting the sensitive electronic components. It is recommended to always hold the
module card by the metal connection panel and avoid touching of the components on
the circuit board directly.
Step 3:
Align both edges of the module with the guide rails inside the slot and carefully insert
the module into the slot. It should slide into the slot without any considerable resistance
when well positioned into the guide rail.

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Step 4:
Some resistance might occur when the module’s board edge connector reaches the
connection counterpart on the main board. Gently push the module all the way into the
slot to ensure that the contacts are correctly inserted. The module is well inserted when
its connection panel touches the metal chassis of the main device where inserted to.
Step 5:
Fasten the module into the slot using the included screws. Be aware that damage or
malfunctions may occur if the module is not correctly fastened.
Step 6:
Once the module correctly installed, the system can be powered-on and the module
functionality will be automatically discovered.

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Chapter 5
Additional information
IP Basics
Many AUDAC products are controllable by Ethernet. The Ethernet connection which
is used on the AUDAC products is TCP/IP based, like 99% of the computer networks.
There are some basics which you need to know to successfully make a TCP/IP Ethernet
connection.
The data in TCP/IP networks is always send in packages, all these packages must be
delivered at an unique address, just like the mailman delivers mail at your home mailbox.
In TCP/IP networks, this address is called the “IP address”. The IP address is always a
number in the following format “192.168.000.001”. As you can see, this address consists
of 4 separate numbers ranging from “000” to “255”.
In simple terms, only the latest number of an IP address can be different within a network,
so there is a maximum of 254 unique addresses within a network, ranging from “xxx.
xxx.xxx.001” to “xxx.xxx.xxx.254”. The first three numbers must be the same to make
communication between several devices possible, else the devices can not communicate
with each other.
Example:
Device 1: IP address: 192.168.000.001
Device 2: IP address: 192.168.000.002
Device 3: IP address: 192.168.001.003
In this example, Device 1 can communicate with Device 2, but not with Device 3, because
the first three numbers must be the same. These first three parts are called the “IP
range”, so the devices must be in the same “IP range” to communicate with each other.

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The “IP range” of home and office networks are defined by the network administrator, this
means that the IP range of your home or office network can be different from another network.
AUDAC products have the following IP address as default: “192.168.0.xxx”, this means
the standard IP range of AUDAC products is “192.168.000.xxx”. If your network is using
a different IP range, the AUDAC products will not be accessible from your network. You
can change the IP address of the AUDAC products to make them work properly in your
network. This can be done in the settings menu, and is described extensively in the
“Settings” chapter of this user manual.
Ask your network administrator for help if you are not familiar with networks.
Summary
- All devices must have an unique IP address
- All devices must be within the same IP range

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Technical specifications
Connection SourceCon™ interface card slot
Input RJ45 Ethernet connection
Output Balanced stereo line output
(2 x 3-pin Euro Terminal Block ~ 3.81 mm)
Output level +8 dB ~ -92 dB
(Software configurable)
Supported filetypes streaming MP3, WMA, AAC
Supported filetypes playback MP3 V1.0, V2.0, V2.5
Ogg vorbis
MPEG4/2 AAC-LC+PNS
HE-AAC v2 (Level 3), SBR+PS
WMA 4.0/4.1/7/8/9
WAV (PCM + IMA ADPCM);
General MIDI 1 / SP-MIDI
Compatible media playback USB Flash drive / HDD (external)
Compatible filesystems FAT16/FAT32
Signal/noise 94 dB
THD+N < 0.07%
Frequency response 20 Hz - 20 kHz
Crosstalk 80 dB
Power consumption 1.5 Watt
Dimensions (W x H x D) 87 x 34.5 x 114 mm
Weight 0.070 Kg
Packaging Carton box
Shipping weight & Volume 1.08 Kg - 0.028 Cbm
Compatible devices XMP44 Modular audio system

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Notes