powersoft Duecanali 804 Quick Guide

Duecanali - Quattrocanali | 5
Pilot Tone monitoring
The detection of a mismatch in the input pilot tone parameters
(frequency and voltage level) can be used to trigger the backup policy
and activate an alert through the general purpose output switch.
The output pilot tone detection relies on an external signal passing
through the amplier or the internal post DSP pilot tone generator; in
both cases any mismatch between the detected signal and the set
thresholds triggers the general purpose output switches.
IP Addressing
Factory default network settings are DHCP/AutoIP.
In order for the amplier to self-congure when connected to
an existing LAN or PC. Fixed IP policy can also be adopted and
congured through Armonía Pro Audio Suite.
If a DHCP server is not active within the network, the amplier
platform initiates a stateless address auto-conguration (i.e. Zero-
conguration networking methodology– Zeroconf): it self assigns a
local numeric network address (of the type 169.254.x.y – 172.31.*.* for
the secondary network ifpresent– with a subnet mask 255.255.0.0)
and automatically distributes and resolves the host names of the
networking devices.
Both Armonia and the Duecanali/Quattrocanali must belong to
the same subnet. If a DHCP server is present on the network and
a Duecanali/Quattrocanali amplier is in AUTO IP, networking may
become unstable.
As a rule of thumb, turn the DHCP
server on before connecting the amplifiers.
IP addressing of a Duecanali/Quattrocanali amplier is established
during the bootstrap: when the amplier discovers a DHCP server
on the network during the startup, it negotiates the networking
parameters. If the Duecanali/Quattrocanali does not reveal a DHCP
server on the network during the startup, it set itself in AUTO IP mode.
Networking
Duecanali/Quattrocanali ampliers support star network topology
via the Ethernet port and Dante
TM
networking via the Dante
TM
port.
Input selection and Backup Policy
In Duecanali/Quattrocanali DSP+D ampliers it is possible to select
among two input signal sources per channel: analog and Dante
TM
streams. Armonía Pro Audio Suite software provides an interface to
select the input source.
Furthermore Duecanali/Quattrocanali DSP+D ampliers implement
a backup policy aimed to improve reliability against signal fault.
By assigning a bus priority to the two different input sources per
channel, the system is able to automatically switch to a reliable input
connection in case of signal drop or pilot tone mismatch.
Output Load monitoring
Through the Armonía Pro Audio Suite software it is possible to set
the thresholds on the load impedance, at given frequency, that
trigger the general purpose output of any channel in Duecanali/
Quattrocanali DSP+D ampliers.
Armonía Pro Audio Suite
Armonía Pro Audio Suite is the default conguring interface that allows
system setting and customization of the Duecanali/Quattrocanali
DSP+D ampliers.
Armonía can be installed on a PC running Windows (XPSP3 and higher).
Download Armonía Pro Audio Suite for free from the dedicated website:
http://armonia.powersoft.it/armonia/
Duecanali/Quattrocanali Series ampliers are optimized for working
with 4Ω output loads but a special configuration allows to connect
low loads down to 2Ω.
The 2Ω switch allows to activate on all output channels set to match
low impedance (i.e. in Lo-Z configuration) an operating condition
that optimizes the performance with very low loads, by limiting the
maximum output voltage to 85V
peak
per channel.
For optimal 2Ω performance, it is recommended to select LowZ
mode for all the amplifier’s channels.
Note that 2Ω capabilities are not supported by 4804 models, the dip
switch is therefore marked “USR C”, and its function is reserved.
Lo-Z 2Ω load operation
Any channel of can drive 70V/100V (Hi-Z) distributed line
loudspeakers. In order to connect any channel’s output to a 70V/100V
line, the rear panel DIP switch corresponding to the channel must be
set.
Powersoft recommends to use the built-in HPF (High Pass Filter)
when the amplier is set to drive a distributed line to prevent
loudspeaker transformer saturation, which can considerably
degrade sound performance. The HPF can be activated by means of
the DIP switch corresponding to the channel, two cutting frequency
are available 35 Hz and 70 Hz.
Hi-Z 70V/100V operations
Output connections are made via the Phoenix PC 5/4-STF1-7,62
177859 port.
Any mixed conguration of low and high impedance output loads
can be made: in order to set the load conguration, each channel is
provided with four DIP switches.
Output connections
The port labelled Ethernet is designed to remotely control the
amplier via an Ethernet connection through a personal computer
and Powersoft Armonía Pro Audio Suite software.
Powersoft recommend the use of Ethernet Cat5 straight through –
patch – cables with pin/pair assignments TIA/EIA-568-B, i.e. T568B.
Ethernet connection
The self check procedure tests the amplier status and reports the
user in case of failures.
After few minutes, at the end of the self check procedure, a
combination of lit LED in the LED panel provides information about
the amplier status.
In order to exit the self check test and resume normal operations,
press once the self check push button
6
.
If self check cannot be started because of a fault, the check LED
will blink fast, whilst a reassuring slow blink is an indication of a
completed self check procedure.
Self Check
Duecanali/Quattrocanali Series provides a pair of paralleled general
purpose output connections per channel: one Normally Open
NO
and one Normally Closed
NC.
The connections are available on the back panel via the 6-pin
Phoenix MC 1.5/6-ST-3.81 5447900 connector.
When the amplier is in normal operating condition the NO contacts
are closed, whilst the NC contacts are open, and vice-versa.
These contacts are used to report potentially dangerous faults or
generally unsafe operation conditions by toggling alarm switches
relative to the following events, and any fault preventing the normal
operation of an output channel:
No AC mains (i.e. system shutdown);
Thermal stress: the system temperature is too high and the thermal
protection is engaged;
Short circuit in output wiring: either the loudspeaker or the line is in
short;
Amplier is in Standby
DSP+D versions feature further monitoring on pilot tone and output
load trough Armonía Pro Audio Suite.
Diagnostics - GPO - Alarms
Dante
TM
enabled models accepts two input streams from the Dante
TM
connection through the Dante
TM
port. Cabling must comply to TIA/
EIA-568-B and adopt the T568B scheme pinout.
In order to implement a Dante
TM
network, a computer running
Dante
TM
Controller have to be used. Dante
TM
Controller is a software
application that manages devices on the network. Duecanali/
Quattrocanali DSP+D ampliers are automatically discovered and
displayed in Dante
TM
Controller with the default identier:
MODELNAME-SERIAL (e.g. Duecanali1604-71520).
Digital Audio Input connection

powersoft Duecanali 804 Specifications

General

Brand	powersoft
Model	Duecanali 804
Category	Amplifier
Language	English