Installing And Connecting The Amplifier; Network - Monacor AKB-30DT/DSP Bedienungsanleitung

4 Installing and Connecting the Amplifier

If required, use the mounting brackets (1) to fasten the amplifier to a
wall or a speaker system, for example .
For the connection of two speakers, the plug-in screw terminals CH1
and CH 2 (4) are available . For easier handling, the terminals can be
removed from the unit . It is possible to connect speakers with an
impedance of 4 Ω to 8 Ω . When connecting multiple speakers to a
single output, make sure that the total impedance at each output is
at least 4 Ω .

4.1 Network

To configure the signal processor and to feed in audio signals via a
Dante network, connect the jack IN / PoE (2) to an individual comput-
er, a local computer network or (via a router, for example) to a large
computer network . For correct configuration, knowledge in network
technology is indispensable . The amplifier can be supplied with power
via the same connection jack if the jack is connected to a network
element providing "Power over Ethernet" (e . g . PoE switch) .
For integration into a Dante network, the amplifier must at least
be connected to a Fast Ethernet switch (100 Mbits / s Ethernet) .
Even if the same connection jack of the AKB-30DT/ DSP is used for DSP
control and for feeding in Dante signals, it is internally considered as
two separate Ethernet interfaces with different IP addresses .
Note: When the IP addresses in the local network are set manually, do not assign
the same address to both interfaces!
The DSP interface of the AKB-30DT/ DSP is preset to automatic reception
of an IP address . If a DHCP server is available in the network connect-
ed, the amplifier will receive its address from the server . If an ordinary
Ethernet switch is used to connect the amplifier to a computer and
the computer has also been set to automatic reception of an address
and if no DHCP server is available, the units will assign an address in
the range 169 .254 .0 .0 – 169 .254 .255 .255 to each other . This may
take a few minutes (depending on the computer system used) . To
accelerate connection without a DHCP server, assign an address in
this range to the computer and set the subnet mask to 255 .255 .0 .0 .
The network settings of the DSP interface can easily be changed
via the menu of the control program . In this menu, it is also possible
to assign a fixed IP address to the amplifier (
Note: If the DSP of the AKB-30DT/ DSP is to be configured in large networks by
means of the control program, higher data volumes (e . g . when multiple Dante trans-
mit channels have been set as multicast flows) may lead to a failure of the control
connection . In this case, it may be necessary to connect a switch ahead of
the AKB-30DT/ DSP which supports "IGMP Snooping" (IGMP = Internet Group
Management Protocol) . The switch can be configured to reduce the load on
the AKB-30DT/ DSP so that the switch will only route multicast data to the AKB-
30DT/ DSP if the amplifier has requested these data .
The Dante interface of the amplifier is also preset to automatic ad-
dress assignment; configuration via the program "Dante Controller"
is possible . For installation of this program please refer to chapter 5 .
The jack LINK (3) can be used for routing the network connection,
e . g . directly to an additional AKB-30DT/ DSP . The PoE power supply,
however, is not routed via this jack .
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chapter 7 .11) .
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