AUDAC Dante AMP203LO User manual

User manual
audac.eu
AMP203

AMP203 - User manual02
ADDITIONAL INFORMATION
This manual is put together with much care, and is as complete as could be on the publication date. However,
updates on the specications, 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.

AMP203 - User manual 03
Table of contents
Introduction 05
Dante mini stereo amplier � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 05
Precautions 06
Chapter 1 08
Connections and connectors � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 08
Chapter 2 09
Front panel overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 09
Rear panel overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 010
Chapter 3 011
AMP203 Quick start guide � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 011
Connecting the AMP203 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 011
Conguring the AMP203 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 012
Chapter 4 014
Audac Touch™ 2 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 014
Settings � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 015
Chapter 5 017
Peripheral connections � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 017
Chapter 6 018
Additional information � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 018
IP Basics � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 018
Technical specications 020
Notes 021

AMP203 - User manual04

AMP203 - User manual 05
Introduction
Dante mini stereo amplier
The AMP203 is a revolutionary small amplier, featuring a Dante audio input over IP providing a complete media
networking solution to distribute uncompressed audio via standard Ethernet networks with near-zero latency while
allowing all other data to be connected on the same network.
The output connector has been implemented using a 4-pin and a 3-pin terminal block connector, featuring an
output power of 30W per channel and 60W when bridged.
Using PoE (Power over Ethernet) the amplier receives both power and signal through a single networking cable,
this way exibility is maximized while needed cabling is kept at a minimum.
The compact convection cooled enclosure eliminates any hum or buzz otherwise caused by a fan. Various
optional mounting brackets are available making it ideal for mounting under a desk, in a closet or on the wall, 19”
rack mounting hardware is available as well.

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Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
ALWAYS KEEP THESE INSTRUCTIONS. NEVER THROW THEM AWAY
ALWAYS HANDLE THIS UNIT WITH CARE
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
NEVER EXPOSE THIS EQUIPMENT TO RAIN, MOISTURE, ANY DRIPPING OR SPLASHING LIQUID. AND NEVER PLACE AN OBJECT FILLED
WITH LIQUID ON TOP OF THIS DEVICE
NO NAKED FLAME SOURCES, SUCH AS LIGHTED CANDLES, SHOULD BE PLACED ON THE APPARATUS
DO NOT PLACE THIS UNIT IN AN ENCLOSED ENVIRONMENT SUCH AS A BOOKSHELF OR CLOSET. ENSURE THERE IS ADEQUATE
VENTILATION TO COOL THE UNIT. DO NOT BLOCK THE VENTILATION OPENINGS.
DO NOT STICK ANY OBJECTS THROUGH THE VENTILATION OPENINGS.
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 WHICH CONTAIN HIGH LEVELS OF DUST, HEAT, MOISTURE OR VIBRATION
THIS UNIT IS DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS
PLACE THE UNIT ON A STABLE BASE OR MOUNT IT IN A STABLE RACK
ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE MANUFACTURER
UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME
ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE EARTHING CONNECTION
THE MAINS PLUG OR APPLIANCE COUPLER IS USED AS THE DISCONNECT DEVICE, SO THE DISCONNECT DEVICE SHALL BE READILY
OPERABLE
USE THE APPARATUS ONLY IN MODERATE CLIMATES
CAUTION
The symbols shown are internationally recognized symbols that warn about potential hazards of electrical products.
The lightning ash with arrow point 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 qualied 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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CAUTION - SERVICING
This product contains no user serviceable parts. Refer all servicing to qualied service personnel.
Do not perform any servicing (unless you are qualied to)
EC DECLARATION OF CONFORMITY
This product conforms to all the essential requirements and further relevant specications described
in following directives: 2014/30/EU (EMC) and 2014/35/EU (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 life cycle. This regulation is created to prevent any possible harm to the environment
or human health.
This product is developed and manufactured with high quality materials and components which can be
recycled and/or reused. Please dispose this product at your local collection point or recycling centre
for electrical and electronic waste. This will make sure that it will be recycled in an environmentally
friendly manner, and will help to protect the environment in which we all live.

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Chapter 1
Connections and connectors
CONNECTION STANDARDS
The in- and output connections for AUDAC audio equipment are performed according to international wiring
standards for professional audio equipment
RS485 & TCP/IP
The AMP203’s RS485 and TCP/IP ports accept the same commands. The complete command set is available in the
AMP203MK2 commands user manual which is freely available on www.audac.eu
3-Pin Terminal block:
For unbalanced line output connections
RJ45 (Audio, +24V DC)
Remote input units
Ethernet (POE):
Used for connecting the AMP203 in your Ethernet network with PoE (power over Ethernet). The AMP203 complies with
the IEEE 802.3 bt standard, which can draw a power up to 100 Watt from the networking equipment.
The maximum output power is depending on the power delivered by the network infrastructure. In case the network
infrastructure is not capable of delivering sufcient power to the amplier, use a PoE injector, or apply an external 24 V DC
power supply to the AMP203.
While CAT5E network cable infrastructure is sufcient for handling the required bandwidth, it is recommended to upgrade
the network cabling to CAT6A or better cabling to achieve the best possible thermal and power efciency throughout the
system when drawing higher powers over PoE.
Left:
Center:
Right:
Signal left
Ground
Signal right
Pin 1 White-Orange N/C
Pin 2 Orange N/C
Pin 3 White-Green +24V DC
Pin 4 Blue RS485B
Pin 5 White-Blue RS485B
Pin 6 Green GND
Pin 7 White-Brown N/C
Pin 8 Brown N/C

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Chapter 2
Front panel overview
The front panel includes the speaker 2 line output connections. They are implemented using a 4-pin and 3-pin terminal
block connectors. The 4-pin terminal block allow stereo output connections as well as parallel bridging. The 3-pin terminal
block allow line output connections.
In stereo mode, the 4-pin terminal block of the AMP203 delivers a continuous output power of 2 x 30 Watts, while both
channels can be bridged resulting in a continuous output power of 60 Watt to a single load.
The 3-pin terminal block gives the option of looping the AMP203 to the next amplier. Expanding the output power with
additional power amplier. An unbalanced line-level output is available. This output is congurable as a pre-amp output
(following the same source and volume as the internal amplier).
A detailed description about how the connections shall be made, can be found in the next chapter of this instruction
manual (Chapter 3: AMP203 connectivity).

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Rear panel overview
All the control and conguration ports are located on the rear panel of the AMP203, including the (optional) 24 Volts
power connection.
1) 24 Volts power connection
The 24 Volts power supply connection is located on the left side of the AMP203’s rear panel. This power connection is
an optional connection, only to be used in applications where the networking infrastructure is not capable of delivering
(sufcient) power over PoE. When using this power inlet, mind the polarity when connecting the power supply.
2) Run LED:
This LED shows the operation mode / current status of the device. When the AMP203 is operational and running normally,
the Run LED will illuminate continuously.
When powering up / booting the system, the Run LED will blink rapidly. The booting process will take roughly about 30
seconds when powering up the system (Blinking rapidly means there is no valid IP conguration available).
If the LED blinks slightly slower for 10 seconds, the device is being identied.
When the device enters into Bootloader mode, the LED will blink slowly. This means that the device needs a rmware
update. The update can be done through the AUDAC Touch™2 application.
3) Ethernet connection:
The Ethernet connection is the essential connection for the AMP203. Both audio transmission (Dante/AES67) as well as
control signals and power (PoE) are distributed over the Ethernet network. This input shall be connected with your network
infrastructure. The LED’s accompanied with this input are indicating the network activity.
4) RS485:
The RS485 input connection allows the AMP203 for being implemented with any RS-485 compatible control device,
including home or industrial automation systems or optionally available wall panels.

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1) Connecting the AMP203 to your network
Connect your AMP203 to a PoE powered Ethernet network with a Cat5E (or better) networking cable. In case the available
Ethernet network is not PoE compatible, an additional (optional) external power supply shall be applied to the 24 V DC
input connection. The operation of the AMP203 can be monitored through the blue ‘Run’ indicator LED in the unit, which
illuminates continuously when operational.
2) Connecting speakers
The speakers shall be connected to the terminal block output connector. Depending on the setup, two speakers can be
connected in stereo setup, or one speaker can be connected in mono/bridge conguration. Typical wiring applications
are shown in the following diagrams. A maximum output power of 2 x 30 Watt can be delivered in stereo mode, while 60
Watt can be delivered in mono/bridge mode.
3) Connecting the line out (optional)
Other ampliers or mixing boards will be connected via the ‘Line out’. Connect both with speaker wire. Make sure that left
is connected to left, and right to right.
Chapter 3
AMP203 Quick start guide
Connecting the AMP203
This chapter guides you through the setup process for a basic AMP203 project where an external Dante source is connected
to the network (e.g. AUDAC XMP44). The control of the system is done through an external wall panel or Audac Touch 2.
Overview of the AMP203 setup

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AMP203 connected in stereo mode AMP203 connected in bridge mode
30W R30W L60W
NOTE
For further information regarding the output powers delivered to various load impedances, check Chapter 6: Technical
specications from this instruction manual.
Conguring the AMP203
1) Dante controller
Once all connections are made, and the AMP203 is operational, the routing for the Dante audio transfer can be made.
For conguration of the routing, the Audinate Dante Controller software shall be used. The use of this tool is extensively
described in the Dante controller user guide which can be downloaded from both audac (www.audac.eu) or Audinate
(www.audinate.com) websites.
In this document, we quickly describe the most basic functions to get you started.
Once the Dante controller software is installed and running, it will automatically discover all the Dante compatible
devices in your network. All devices will be shown on a matrix grid with on the horizontal axis all the devices with their
receiving channels shown and on the vertical axis all the devices with their transmitting channels. The shown channels
can be minimized and maximized by clicking the ‘+’ and ‘-’ icons.
Linking between the transmitting and receiving channels can be done by simply clicking the cross points on the
horizontal and vertical axis. Once clicked, it only takes a few seconds before the link is made, and the cross point will
be indicated with a green checkbox when successful.
To give custom names to the devices or the channels, double click the device name where after the device view
window will pop up. The device name can be assigned in the ‘Device cong’ tab, while the transmitting and receiving
channel labels can be assigned under the ‘Receive’ and ‘Transmit’ tabs.
Once any changes are made to linking, naming or any other, it is automatically stored inside the devices itself without
requiring any save command. All settings and linkings will be automatically recalled after power off or re-connection of
the devices.

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NOTE
The maximum input power of the amplier is factory default congured to 15 Watt to avoid overload to the PoE equipment.
Depending on the network infrastructure the maximum power drawn can be adjusted here to a maximum of 95 Watt.
In case the available output power/sound pressure levels are insufcient, verify these values according to the network
infrastructure limitations
Besides the standard and essential functions described in this document, the Dante Controller software also includes
many additional conguration possibilities that might be required depending on your application requirements. Consult
the complete Dante controller user guide for more information.
2) AMP203 settings
Once the Dante routing settings are made through the Dante controller, other settings of the AMP203 itself can be congured
using the Audac Touch 2 application, which can be freely downloaded and operated from various platforms. This is very
intuitive to be operated and automatically discovers all available compatible products in your network. Available settings
include volume, input selection, as well as advanced congurations such as output power limiters and much more.

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Chapter 4
Audac Touch™ 2
Login screen
Device list
The AMP203 can be congured and controlled through the Audac Touch™ 2 application which is freely available for
Android, iOS, Windows, Linux and MacOS. Using this freely available solution, application specic dashboards can be
created and customized, allowing the control of multiple devices from one single application.
When launching the AUDAC Touch™ 2 application, you have to log-in through your Audac Touch™ credentials. If you
don’t have an account yet, press the ‘Register’ button for creating a new account.
Click on the menu icon in the top left corner to let the menu appear. From the menu select “device list”. The device list is
an overview of all devices which have been discovered since you created your account. Every time you start up the audac
touch application, it automatically scans your network and adds discovered devices to the list.

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Settings
Settings >> Device
By clicking the settings button in the top right corner on the devices page the device settings can be changed. The
settings for the AMP203 are divided into the following categories: Device, Inputs, Power, Network, Authentication.
Device/Zone name
The device name can be congured here. The device name can be any kind of freely selectable name. It is also the
name which is visible in the Dante controller.
TouchLink™ zone
A TouchLink™ zone number can be assigned here. Touchlink™ is an unique system whereby multiple ampliers within
one zone can be linked with each other, so they react to user as one zone.
TouchLink™ can be used to create virtual zones by linking multiple devices with each other. A typical application example
is a large area where multiple AMP203’s (or other TouchLink™ compatible devices) are installed in one large open space.
When they are virtually linked, all devices with the same TouchLink™ assigned number will follow each others’ settings
(such as volume, input, muting, ... ).
It means, if they are all installed throughout the same area, they all will be simultaneously operated by one single control
(e.g. volume fader) from the AUDAC Touch™ 2 application. Additionally, a wall panel which is physically connected to one
of the linked devices will automatically control all the linked devices.
A number shall be assigned as a TouchLink™ zone ID (e.g. 1, 2, 3, ... ) and all devices with the identical TouchLink™ zone
ID will virtually work as one zone.
Address
Here the device’s address can be set. This address is needed to communicate with the right device if commands will be
sent over a serial or UDP connection.
Setup wall panel
This resets the wall panel’s zone settings information, when an optional wall panel is being used. It is recommended when
experiencing any trouble with a wall panel, or when the wall panel has been used in another type of setup before. It resets
the wall panel settings to zone 1, making sure it can communicate with the AMP203.
Click on one of the devices in the list to open the device’s page. The rst time a device is opened a password will be
prompted. In the case of the AMP203, the factory default administrator password is ‘AMP203’. After entering the correct
password the device page will be shown with all available controls. The channels shown in the input selection list are
corresponding with the linked inputs through the Dante controller, while the volume slider allows adjusting the overall
output volume of the amplier.

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Broadcast Enabled
This enables broadcasting instead of multicasting. (Warning: enabling broadcast generates extra network trafc on all
devices within the same subnet.) This can be done if your network equipment does not support multicasting.
Settings >> Input
Settings >> Power
Settings >> Network
Settings >> Authentication
Input gain
The gain for each available input signal can be adjusted individually within a range of -20 dB and +20 dB.
Set enable inputs
Each input channel can be individually enabled and disabled. Disabling inputs will make them disappear from the inputs
selectable in the Audac Touch™ 2 widgets, and they also won’t be selectable from any connected wall panel or peripheral.
Set power
The maximum input power of amplier can be congured here (the power which is drawn from the PoE equipment). It is
factory default congured to 15 Watt to avoid overload to the PoE equipment. Depending on the network infrastructure
the maximum power drawn can be adjusted here to a maximum of 95 Watt. In case the available output power / sound
pressure levels are insufcient, verify these values according to the network infrastructure limitations.
Other settings such as loudspeaker impedance settings and bridging enabling / disabling also has to be congured here
The currently congured network settings are displayed here. In case any specic network congurations or preferences
have to be made (e.g. xed IP address), these settings have to be adjusted through the Dante controller software tool.
Change admin password
The administrator password can be changed here. The factory default administrator password is ‘AMP203’. The adminis-
trator password gives access to all functions and settings of the amplier.
Change user password:
The user password can be changed here. The factory default user password is ‘user’. The user password only gives access
to the standard operational functions of the amplier such as volume adjustments and input selection.

AMP203 - User manual 017
Chapter 5
Peripheral connections
In addition to the controllable functions through Audac Touch™ 2, additional wall control panels can be locally connected
(e.g. MWX45 wall panels). This allows basic control functions such as volume control and input selection.
When multiple units are congured through TouchLink™, all units within the same congured zone will be responding.
The wall panels shall be connected to the RS485 input connection through CAT5E (or better) cabling. Cable lengths up to
300 meters can be achieved and daisy chaining is possible through connecting multiple wall panels in parallel.

AMP203 - User manual018
Chapter 6
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 that you need to know to successfully make a
TCP/IP Ethernet connection.
The data in TCP/IP networks is always sent in packages, all these packages must be delivered to a unique address, just
like the mailman delivers mail to 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 last number of an IP address can be different within a network, so there is a maximum of 256 unique
addresses within a network, ranging from “xxx.x xx.xxx.000” to “xxx.x x x.xxx.255”. The rst three numbers have to be the same
to make communication between several devices possible. Otherwise, the devices can not communicate with each other.
In th i s ex a m p l e, D e vi ce 1 can co mm un ic ate wi t h Dev ic e 2, b u t not wi th De v i c e 3, be ca us e the r st thr ee nu mb er s have to b e t h e sa m e.
These rst three par ts are called the “IP range”, so the devices have to be in the same “IP range” to communicate with each other.
Device 1: IP address: 192.168.000.001
Device 2: IP address: 192.168.000.002
Device 3: IP address: 192.168.001.003
Example:

AMP203 - User manual 019
The “IP ranges” of home and ofce networks are dened by the network administrator, this means that the IP range of your
home or ofce network can be different from another network. Dante based AUDAC products get their IP address from
a DHCP server. If there is no DHCP server available, they will use a link local address. 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. For Dante based AUDAC products this can be done using the
DANTE controller.
Of course, to make changes to the settings menu of the AUDAC products, you need to have access to the user
interface. This can be done by temporarily giving your computer an IP address within the IP range of the AUDAC product,
for example, “192.168.0.193”. After the IP address of your computer is within the IP range of the product, the user
interface is accessible and the IP address of the product can be changed to an IP address within the IP range of
your network. If the IP address of the product is within the IP range of your network, you can change the IP address
of your computer to its former IP address and the product should work properly in your home or ofce network.
Ask your network administrator for help if you are not familiar with networks.
SUMMARY
- All devices must have a unique IP address
- All devices must be within the same IP range

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Technical specications
Inputs Audio Type Dante/AES67 (4 Channels)
Connector RJ45 with indicator LED’s
Other Type RS-485
Connector RJ45
Output Type 1 x Stereo loudspeaker
Connector 4-pin Terminal block ~ 5.08mm
Type 1 x Line out
Connector 3-pin Terminal block ~ 3.81mm
Impedance Min load of 2 Ohm (Bridge)/ 4 Ohm (Stereo)
Power 2 x 30 Watt @ 8 Ohm Stereo
2 x 30 Watt @ 4 Ohm Stereo
1 x 30 Watt @ 8 Ohm Bridge
1 x 60 Watt @ 4 Ohm Bridge
1 x 60 Watt @ 2 Ohm Bridge
THD+N < 0.015% (@ 1 kHz)
Crosstalk > -98 dB
Power consumption Standby 3 Watt
Idle 6.6 Watt
Nominal (1/8 MUP) 10.6 Watt
MUP 80 Watt
Efciency 1/8 MUP 70%
MUP 81%
Auto power down Minimum signal -61 dB
Timing 30 Seconds
Power supply PoE 802.3bt
24V DC max. 3.75A (optional)
Dimensions (WxHxD) 108 x 44 x 164 mm
Weight 0.70 Kg
Packaging Carton box
Shipping weight & Volume 0.8 Kg - 0.0078 Cbm
compatible devices MWX45 Digital wall controller
Optional Accessories MBS1xx Mounting brackets
NOTE: ‘MUP’ stands for Maximum Undistored Power