powersoft Ottocanali 12K4 User manual

Keep this manual
for future reference
©2015 Powersoft
Ottocanali Series
DO000140.04 R00
Ottocanali 12K4 / Ottocanali 12K4 DSP+D
Ottocanali 8K4 / Ottocanali 8K4 DSP+D
Ottocanali 4K4 / Ottocanali 4K4 DSP+D
USER GUIDE
Ottocanali
12K4DSP+D

powersoft_Ottocanali_qguide_en_v4.0
Data are subject to change without notice.
For latest update please refer to the English
online version available on www.powersoft-audio.com.
Les données sont sujettes à changement sans préavis.
Pour la dernière mise à jour, s’il vous plaît se référer à la version anglaise
disponible en ligne sur www.powersoft-audio.com.
Esta información está sujeta a cambios sin previo aviso.
Para la última actualización por favor reérase a la versión disponible
en Ingles en nuestro sitio de internet www.powersoft-audio.com.
I dati sono soggetti a cambiamenti senza preavviso.
Per gli aggiornamenti si prega di consultare la versione inglese
disponibile online su www.powersoft-audio.com.
数据如有更改，恕不另行通知。
最新更新，请参考在线的英文版本：http://www.powersoft-audio.com
Данные могут быть изменены без предварительного уведомления.
Для более детальной информации используйте полное руководство на английском языке.
Электронная версия доступна на сайте - http://www.powersoft-audio.com.
Alle Angaben können jederzeit ohne vorherige Benachrichtigung geändert werden.
Den jeweils aktuellsten Stand nden Sie in der Englischsprachigen Online-Ausgabe
auf www.powersoft-audio.com.
Os dados estão sujeitos a alterações sem aviso prévio.
Para obter atualizações, consulte a versão em Inglês
disponível online em www.powersoft-audio.com.

Table of content
Ottocanali Series
1.Important safety instructions 10
2.Ottocanali Series 11
2:1.Welcome 11
2:2.Unpacking & checking for shipping damage 11
2:3.Disposal of the packaging material 11
2:4.List of image panels 11
3.Installation 12
3:1.Location 12
3:2.Cooling 12
3:3.Cleaning 12
3:4.AC mains supply 12
3:5.Energy save 13
3:7.Remote ON/OFF (standby mode) 13
3:6.Precautions regarding installation 13
4.Connections 14
4:1.Signal grounding 14
4:2.Analog audio input connections 14
4:2.1.AUX SEL. IN: Analog input selection 14
4:2.2.PWS OUT: Built-in auxiliary power supply 14
4:3.Digital audio input connections 14
4:3.1.Input selection and Backup policy 14
4:4.Ethernet connections 15
4:5.Output connections 15
4:5.1.Hi-Z 70V/100V operations 15
4:6.GPO - Alarms 15
4:6.1.Pilot tone monitoring 15
4:6.2.Output load monitoring 15
5.Attenuators 16
6.LED chart 16
7. Firmware update 16
8.Networking 17
8:1.IP addressing 17
8:1.1.IP Addressing troubleshooting 17
8:2.Dante™ networking 17
8:2.1.Redundant network configuration 17
9.Armonía Pro Audio Suite 18
9:1.Signal routing and DSP architecture 18
9:2.Purposed workflow 18
10.Warranty and assistance 19
10:1.Warranty 19
10:1.1.Product warranty 19
10:1.2.Return of Goods 19
10:1.3.Repair or replacement 19
10:1.4.Cost and responsibility of transport 19
10:2.Assistance 19
Table of contents
Table of content | 1

A
Ottocanali
12K4DSP+D
482
442
76.2 88.2
382
365.5
2 | Ottocanali Series

Panels
B
1. Grip the outermost left hand side
panel and tilt it on its inner edge;
2. Carefully slide the panel and remove
the anti-dust lter.
Ottocanali
12K4DSP+D
Panels | 3
1
2

C
D
Ottocanali 12K4
Ottocanali 8K4
Ottocanali 4K4
A. 24 VDC PWS OUT switch
B. Energy save DIP switches
C. USB port
1. On/off power switch and
AC mains IEC C20 inlet
2. Fan
3. Audio outputs (channels 1-4)
WARNING: HAZARDOUS VOLTAGE
4. Audio outputs (channels 5-8)
WARNING: HAZARDOUS VOLTAGE
5. Audio inputs: LINE (ch. 1-8)
D. Input attenuators (channels 1 to 8)
E. Multifunction LEDs (channels 1 to 8)
F. Air vent
6. Audio inputs: AUX (ch. 1-8)
7. Fan
8. GPO - Alarms channels 1-4
9. GPO - Alarms channels 5-8
10.Remote off switch
11. Disabled (remote on switch)
12. 24 VDC PWS OUT
13. AUX SEL. IN input selector
14. Multi function DIP switch ch. 1-2
(impedance, voltage, lter)
15. Multi function DIP switch ch. 5-6
(impedance, voltage, lter)
16.Multi function DIP switch ch. 7-8
(impedance, voltage, lter)
17. Multi function DIP switch ch. 3-4
(impedance, voltage, lter)
CLASS3
WIRING
2 3 4 5 6 7 81
PWS OUT
ENERGY
SAVE
ON
OFF
CH 1-2 CH 3-4 CH 5-6 CH 7-8
ONOFF
4 NC NO 3 NC NO 2 NC NO 1 NC NO
8 NC NO 7 NC NO 6 NC NO 5 NC NO
CH5CH6CH7CH8
CH5CH6CH7CH8
CH1CH2CH3CH4
CH1CH2CH3CH4
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
Ottocanali
12K4DSP+D
4 | Ottocanali Series
A B C F
1 2 3 49
1012 111314151617
8765
D E

E
F
Ottocanali 12K4 DSP+D
Ottocanali 8K4 DSP+D
Ottocanali 4K4 DSP+D
1. On/off power switch and
AC mains IEC C20 inlet
2. Fan
3. Audio outputs (channels 1-4)
WARNING: HAZARDOUS VOLTAGE
4. Audio outputs (channels 5-8)
WARNING: HAZARDOUS VOLTAGE
5. Audio inputs: LINE (ch. 1-8)
6. Audio inputs: AUX (ch. 1-8)
A. 24 VDC PWS OUT switch
B. Energy save DIP switches
C. USB port
D. Callback to Armonía
7. Fan
8. GPO - Alarms channels 1-4
9. GPO - Alarms channels 5-8
10. Ethernet port /Dante™ primary
11. Ethernet port/ Dante™ secondary
12. Remote off switch
13. Remote on switch
14. 24 VDC PWS OUT
15. AUX SEL. IN input selector
E. Soft reset pushbutton
F. Hard reset pushbutton
G. Firmware update pushbutton
H. Output attenuators (speakers A to H)
I. Multifunction LEDs (channels 1 to 8)
J. Air vent
16.Multi function DIP switch ch. 1-2
(impedance, voltage, lter)
17. Multi function DIP switch ch. 5-6
(impedance, voltage, lter)
18.Multi function DIP switch ch. 7-8
(impedance, voltage, lter)
19. Multi function DIP switch ch. 3-4
(impedance, voltage, lter)
CLASS3
WIRING
4 NC NO 3 NC NO 2 NC NO 1 NC NO
8 NC NO 7 NC NO 6 NC NO 5 NC NO
CH5CH6CH7CH8
CH5CH6CH7CH8
CH1CH2CH3CH4
CH1CH2CH3CH4
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
B C D E F G HA
CALL SOFT RESET HARD RESET FW UPDATE
PWS OUT
ENERGY
SAVE
ON
OFF
CH 1-2 CH 3-4 CH 5-6 CH 7-8
ONOFF
Ottocanali
12K4DSP+D
Panels | 5
A B D E F GC J
1 2 3 49
16171819 11
10
12131415
8765
HI

G H
Name Plug
INPUT Phoenix MC 1,5/12-ST-3,81 1803675
OUTPUT Phoenix PC 5/ 8-STF1-7,62 1777891
GPO/ALARM Phoenix MC 1,5/12-ST-3,81 1803675
AUXILIARY Phoenix MC 1,5/4-ST-3,81 1803594
AC MAINS IEC C19
I J
INPUT
GPO
Phoenix MC 1,5/12-ST-3,81 1803675
Bill of connectors
Phoenix MC 1,5/12-ST-3,81 1803675
Phoenix MC 1,5/12-ST-3,81 1803675 Phoenix PC 5/ 8-STF1-7,62 1777891
Phoenix PC 5/ 8-STF1-7,62 1777891
OUTPUT (single ended)
INPUT (link channel pairs)
OUTPUT (bridged)
6 | Ottocanali Series

Low-Z High-Z 100V 70V HPF @ 35 Hz HPF @ 70 Hz
1•
2• •
3• • •
4• • •
5• •
6• • •
7•••
K
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
70V
lo-Z
35Hz
HPF Off
100V hi-Z 70Hz HPF On
12345678
12345678
12345678 12345678 12345678
12345678 12345678
Panels | 7
1
2
5
3
6
4
7

L
M N
12345678
Color code (TIA/EIA-568-B) Pin
ORANGE / WHITE 1
ORANGE 2
GREEN / WHITE 3
BLUE 4
BLUE / WHITE 5
GREEN 6
BROWN / WHITE 7
BROWN 8
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
Ottocanali
12K4
DSP+D
1 1
1 RU
1 RU
1 RU
Mounting brackets
11
2 2
2 2
3 3
3 3
4 4
4 4
5
RJ45
8 | Ottocanali Series

Regulatory information
FCC COMPLIANCE NOTICE
This device complies with part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
NOTE: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment gener-
ates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equip-
ment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the
following measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and receiver.
 Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
 Consult the dealer or an experienced radio/TV technician for help.
WEEE DIRECTIVE
If the time arises to throw away your product, please recycle all the com-
ponents possible.
This symbol indicates that when the end-user wishes
to discard this product, it must be sent to separate col-
lection facilities for recovery and recycling. By separat-
ing this product from other household-type waste, the
volume of waste sent to incinerators or land-fills will be
reduced and natural resources will thus be conserved.
The Waste Electrical and Electronic Equipment Directive (WEEE Directive)
aims to minimise the impact of electrical and electronic goods on the en-
vironment. Powersoft S.p.A. comply with the Directive 2002/96/EC and
2003/108/EC of the European Parliament on waste electrical finance the
cost of treatment and recovery of electronic equipment (WEEE) in order
to reduce the amount of WEEE that is being disposed of in land-fill site.
All of our products are marked with the WEEE symbol; this indicates that
this product must NOT be disposed of with other waste. Instead it is the
user’s responsibility to dispose of their waste electrical and electronic
equipment by handing it over to an approved reprocessor, or by return-
ing it to Powesoft S.p.A. for reprocessing. For more information about
where you can send your waste equipment for recycling, please contact
Powesoft S.p.a. or one of your local distributors.
EC DECLARATION OF CONFORMITY
Manufacturer:
Powersoft S.p.A.
via E. Conti 5
50018 Scandicci (Fi)
Italy
We declare that under our sole responsibility the products:
Model Names: Ottocanali 12K4, Ottocanali 8K4, Ottocanali 4K4
Ottocanali 12K4 DSP+D, Ottocanali 8K4 DSP+D
Ottocanali 4K4 DSP+D
Intended use: Professional Audio Amplifier
Are in conformity with the provisions of the following EC Directives,
including all amendments, and with national legislation implementing
these directives:
 2006/95/EC Low Voltage Directive
 2004/108/EC Electromagnetic Compatibility Directive
 2002/95/CE RoHs Directive
The following armonized standards are applied:
EN 55103-1
EN 55014-1
EN 55022
EN 61000-3-2
EN 61000-3-3
EN 61000-3-11
EN 61000-3-12
EN 55103-2
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
EN 61000-4-11
EN 60065
Scandicci,
July 2014
Luca Lastrucci
Managing Director
For compliance questions only: [e-mail]
O
Panels | 9

CAUTION
RISK OF ELECTRICK SHOCK
DO NOT OPEN
Electrical energy can perform many useful functions. This unit has
been engineered and manufactured to ensure your personal safety. But
IMPROPER USE CAN RESULT IN POTENTIAL ELECTRICAL SHOCK OR
FIRE HAZARD.
In order not to defeat the safeguards incorporated into this product,
observe the following basic rules for its installation, use and service.
Please read these “Important Safeguards” carefully before use.
Important safety instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this equipment near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with
the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-
type plug. A polarized plug has two blades with one wider than the
other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particu-
larly at plugs, convenience receptacles, and the point where they
exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by
the manufacturer, or sold with the apparatus. When a
cart is used, use caution when moving the cart/ap-
paratus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or
when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has
been dropped.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
ATTEMPT TO OPEN ANY PART OF THE UNIT. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
TO COMPLETELY DISCONNECT THIS APPARATUS FROM THE AC
MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC
RECEPTACLE.
THE MAINS PLUG OF THE POWER SUPPLY CORD MUST
REMAIN READILY ACCESSIBLE.
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE, DRIPPING
OR SPLASHING LIQUIDS. OBJECTS FILLED WITH LIQUIDS, SUCH AS
VASES, SHOULD NOT BE PLACED ON THIS APPARATUS.
THE UNIT MUST BE INSTALLED IN RACK CABINETS: INSTEAD OF
CONNECTING THE AMPLIFIER TO THE POWER GRID DIRECTLY, PLUG
THE AMPLIFIER’S MAINS CONNECTIONS VIA A SECTIONING BREAKER
TO A POWER DISTRIBUTION PANEL INSIDE THE RACK CABINET.
WHEN THE UNIT IS INSTALLED IN A CABINET OR A SHELF, MAKE
SURE THAT IT HAS SUFFICIENT SPACE ON ALL SIDES TO ALLOW
FOR PROPER VENTILATION (50 CM FROM THE FRONT AND REAR
VENTILATION OPENINGS).
CONNECTION TO THE MAINS SHALL BE DONE ONLY BY A
ELECTROTECHNICAL SKILLED PERSON ACCORDING THE NATIONAL
REQUIREMENTS OF THE COUNTRIES WHERE THE UNIT IS SOLD.
CLASS3
WIRING
CLASS3
WIRING
CLASS3
WIRING
CLASS3
WIRING
CLASS3
WIRING
CLASS3
WIRING
CLASS3
WIRING
EXPLANATIONS OF GRAPHICAL SYMBOLS
CLASS3
WIRING
The triangle with the lightning bolt is used to alert the user to the
risk of electric shock.
CLASS3
WIRING
The triangle with the exclamation point is used to alert the user
to important operating or maintenance instructions.
The CE-mark indicates the compliance with the low voltage and
electromagnetic compatibility.
Symbol for earth/ground connection.
Symbol indicating that the equipment is for indoor use only.
Symbol for conformity with Directive 2002/96/EC and Directive
2003/108/EC of the European Parliament on waste electrical
and electronic equipment (WEEE).
Do not use the unit at altitudes above 2000 m.
Do not use the unit in tropical environment.
Important safety instructions 1
10 | Ottocanali Series

User Guide
Ottocanali Series Quick Guide 2
2:1.Welcome
Congratulations on buying a Powersoft Ottocanali
Series amplier!
We know you are eager to use your new Ottocanali
amplier, but please take a moment to read this quick guide
and the safety instructions. In case you have any questions,
please do not hesitate to contact your dealer or Powersoft.
The Ottocanali Series is specically designed for instal-
lation applications. Ottocanali offers smaller dimensions,
lighter weight and the traditionally amazing sound quality
and reliability of all Powersoft products.
The built in PFC (Power Factor Correction) allows aw-
less worldwide operation with any AC mains voltage, from
100 to 240V; patented SRM (Smart Rails Management)
technology allows to maximize the efciency of the system
and drastically reduce power consumption at any load and
usage condition. This system automatically alters the rails
working voltage according to the instaneous power require-
ments of the system. A low output power requires a lower
rails voltage which in turn yields lower power consumption
while at the same time guaranteeing lightning fast switching
to full rails voltage when the system requires full power.
Ottocanali Series implements redundant power supplies
for maximum reliability even in case of system fault. In case
of damages in one power supply, the other one is capable to
maintain the system up, guaranteeing non-stop functional-
ity even in harsh conditions.
Ottocanali Series is designed to work with lo-Z (from 2 �)
and with 70V/100V distributed lines: any mixed conguration
of low and high impedance output loads can be realized,
making the Ottocanali Series suitable to all application in
installed sound reinforcement system.
Ottocanali Series encompasses three models:
 Ottocanali 12K4 delivering up to 1500 W per channel at 4�
 Ottocanali 8K4 delivering up to 1000 W per channel at 4�
 Ottocanali 4K4 delivering up to 500 W per channel at 4�
2:2.Unpacking&checking for shipping damage
Your Powersoft product has been completely tested and
inspected before leaving the factory. Carefully inspect the
shipping package before opening it, and then immediately
inspect your new product. If you nd any damage notify the
shipping company or reseller immediately.
The box contains the following:
 1x Ottocanali Series amplier.
 2x Phoenix MC 1,5/ 4-ST-3,81 - 1803594 plug
 6x Phoenix MC 1,5/12-ST-3,81 - 1803675 plug
 2x Phoenix PC 5/ 8-STF1-7,62 - 1777891 plug
 1x IEC power cord
 1x user guide
2:3.Disposal of the packaging material
The protective transport packaging has been selected
from materials which are environmentally friendly for dis-
posal and can normally be recycled.
Rather than just throwing these materials away,
please ensure they are offered for recycling.
2:4.List of image panels
A. Mechanical drawings: all dimensions in millimeters
B. Front panel: how to access it
C. Ottocanali Series: Front panel description
D. Ottocanali Series: Rear panel description
E. Ottocanali Series DSP+D: Front panel description
F. Ottocanali Series DSP+D: Rear panel description
G. Input connector: wiring (single ended mode)
H. Output connector: wiring (single ended mode)
I. Alarms connector: wiring
J. Input/Output connectors: wiring (bridged mode)
K. Output load DIP switch congurations
L. RJ45 Ethernet wiring (Color code TIA/EIA-568-B)
M. Air ow and mounting brackets
N. Rack mounting constraints
O. Regulatory information
User Guide | 11

Installation 3
3:1.Location
Ottocanali Series ampliers are meant to be installed into
rack. In order to limit the risk of mechanical damages, the
ampliers must be xed to the rack using both frontal and
rear mounting brackets. We recommends to use eight M6 or
12-24 UNC-2B screws for threaded holes or cage nuts.
The AC mains connection of the units should be con-
nected to a proper circuit breaker (refer to §3:4.AC mains
supply for more details).
Install this amplier as far as possible from radio tun-
ers and TV sets. An amplier installed in close proximity of
such equipment may experience noise or generic perfor-
mance degradation. Placing and using the amplier for long
periods of time on heat generating sources will affect its
performance. Avoid placing the amplier on heat generating
sources.
This device must be powered exclusively by
earth connected mains sockets in electrical
networks compliant to the IEC 364 or similar rules.
Powersoft suggests to plug the
Ottocanali to a 32 A rating, C or
D curve, 10 kA sectioning breaker.
AC mains connections must be performed
only by professional or qualified personnel
according to local electrical authorities guidelines.
3:2.Cooling
Install the amplier in a well-ventilated location: the ven-
tilation openings must not be impeded by any item such as
newspapers, tablecloths, curtains, etc; keep a distance of
at least 50 cm from the front and rear ventilation openings
of the amplier.
All Powersoft ampliers implement a forced-air cooling
system to maintain low and constant operating tempera-
tures. Drawn by the internal fans, air enters from the front
panel and is forced over all components, exiting at the back
of the amplier.
The amplier’s cooling system features “intelligent” var-
iable-speed DC fans which are controlled by the heatsink
temperature sensing circuits: the fans speed will increase
only when the temperature detected by the sensors rises
over carefully predetermined values. This ensures that fan
noise and internal dust accumulation are kept to a strict
minimum.
Should however the amplier be subject to an extreme
thermal load, the fan will force a very large volume of air
through the heat sink. In the extremely rare event that the
amplier should dangerously overheat, sensing circuits
shut down all channels until the amplier cools down to a
safe operating temperature. Normal operation is resumed
automatically without the need for user intervention.
Ottocanali Series ampliers can be stacked one on top
of the other due to the efcient cooling system they are
equipped with.
There is however a safety limit to be observed: in case
a rack with closed back panels is used, leave one rack unit
empty every four installed ampliers to guarantee adequate air
ow (see Panel N, p. 8).
3:3.Cleaning
Always use a dry cloth for cleaning the chassis and the
front panel. Air lter cleaning should be scheduled according
to the dust levels in the amplier’s operating environment.
Disconnect the AC mains source before
attempting to clean any part of the amplifier
In order to clean the vent lters you need to remove the
front cover: never attempt to open any other part of the unit.
1. Firmly grip the outermost silver colored panel and pull
outwards at an angle, as if opening a door (see Panel
B, p. 3).
2. Carefully slide the metal panel away from the chassis.
When the front panel is removed, the air lter (looking
like a shiny black plastic sponge) will be exposed.
You may use compressed air to remove the dust from
lters, or wash it with clean water: in the latter case ensure
that the lter is dry before reassembly.
3:4.AC mains supply
Ottocanali Series ampliers implement two universal
redundant switching mode power supplies operating in the
range from 100 VAC up to 240 VAC ±10%.
AC mains connection is in the rear panel through the
IEC C20 inlet with power switch: the approved power cord
is provided (see FIG. 1).
FIG. 1: AC mains connection.
12 | Ottocanali Series

3
3:5.Energy save
Energy save capabilities can be activated for each chan-
nel pair. Four DIP switches are located on the left hand side
of the front panel (see Panel C, p. 4and Panel E, p. 5):
in order to activate the Energy save mode for channel pair
set the switches in the bottom position.
When the Energy save mode is activate on a channel
pair, the Ottocanali enters a low power consumption idle
state when no signal activity is detected for more than 4
seconds. Normal operation is resumed in a matter of mil-
liseconds when an incoming signal is detected on the chan-
nel pair.
TAB. 1 shows the power consumption in idle mode for
non-DSP amplifers, when the Energy save is either enabled
or disabled on all channels.
Energy
Save
115 VAC mains 230 VAC mains
Current Real
Power
Apparent
Power Current Real
Power
Apparent
Power
ON 0.65 A 30 W 75 VA 0.76 A 35 W 175 VA
OFF 0.90 A 52 W 103.5 VA 0.84 A 58 W 193 VA
TAB. 1: Idle consumption.
Note: in case a pilot tone is used for checking system
integrity and line faults, the Ottocanali amplier would
continuously detects a stationary signal that prevents the
the idle mode. In this condition the Energy save will never
activate.
3:7.Remote ON/OFF (standby mode)
Remote ON/OFF is available throurgh the proper termi-
nals in the rear panel: in non-DSP Ottocanali (see Panel D, p.
4) by switching 24VDC ±10% voltage (10 mA max) applied
to the REM OFF connector, the amplier can be remotely
toggle between standard operating and the standby modes.
 When a 24 VDC voltage is applied to REM OFF, the am-
plier switches to standby mode.
 When the 24 VDC voltage is removed from REM OFF,
the amplier switches back on as per normal boot up
operation.
In order to remotely toggle between standard operating
and the standby modes, the AC mains power must be active
and the mains button switched on.
3:6.Precautions regarding installation
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK
 This device must be powered exclusively by earth con-
nected mains sockets in electrical networks compliant
to the IEC 364 or similar rules.
 Install the unit into rack cabinet.
 A sectioning breaker between the mains connections
and the amplier should be installed inside the rack
cabinet.
 Properly t the AC mains plug to the amplier inlet.
 Before powering this amplier, verify that the correct
voltage rating is being used.
 Verify that your mains connection is capable of satisfy-
ing the power ratings of the device.
 Do not use this amplier if the electrical power cord is
frayed or broken.
 Output terminals are hazardous: wiring connection to
these terminals require installation by an instructed
person and the use of ready-made leads.
 Take care to lock the output terminal before switching
the device on.
 To avoid electrical shock, do not touch any exposed
speaker wiring while the amplier is operating.
 Do not spill water or other liquids into or on the amplier.
 No naked ame sources such as lighted candles
should be placed on the amplier.
 Do not remove the cover. Failing to do so will expose
you to potentially dangerous voltage.
 The manufacturer cannot be held responsible for
damages caused to persons, things or data due to an
improper or missing ground connection.
 Contact the authorized service center for ordinary and
extraordinary maintenance.
It is absolutely necessary to verify these fundamental
requirement of safety and, in case of doubt, require
an accurate check by qualified personnel.
User Guide | 13

Connections 4
Make sure the power switch is off before attempting to
make any input or output connections.
By using good quality input and speaker cables, the like-
lihood of erratic signal behavior is reduced to a minimum.
Whether you make them or buy them, look for good quality
wires, connectors and soldering techniques.
4:1.Signal grounding
There is no ground switch or terminal on the Ottocanali
Series ampliers. All shield terminals of input connections
are directly connected to the chassis. This means that the
unit’s signal grounding system is automatic. In order to limit
hum and/or interference entering the signal path, use bal-
anced input connections.
In the interests of safety, the unit MUST always operate
with electrical safety earth connected to the chassis via the
dedicated Protective Earth wire.
4:2.Analog audio input connections
Ottocanali Series ampliers implements two analog
input connections per channel: LINE and AUX input. Input
selection is made via software or through the AUX SEL. IN
switch (see §4:2.1. AUX SEL. IN: Analog input selection).
Analog input is provided by means of four Phoenix MC
1,5/12-ST-3,81 1803675 connectors (see Panel D, p. 4
and Panel F, p. 5), two for LINE input (channels 1-to-4
and 5-to-8) and two dedicated to the AUX input (channels
1-to-4 and 5-to-8). Signal polarity of analog input connec-
tions is shown in Panel G, p. 6.
4:2.1.AUX SEL. IN: Analog input selection
Ottocanali Series ampliers can switch from analog
LINE inputs to AUX inputs when a constant voltage in the
12 VDC to 30 VDC range is applied to the AUX SEL. IN connec-
tor (see Panel D, p. 4and Panel F, p. 5). When this
voltage is removed from the AUX SEL. IN, the unit switches
back from AUX inputs to LINE inputs.
4:2.2.PWS OUT: Built-in auxiliary power supply
The PWS OUT connector provides a 24VDC – symmetrical
with respect to ground (0.2 A max) – when enabled by the
toggle switch on the front panel (see Panel C, Panel D, p.
4and Panel E, Panel F, p. 5).
By wiring the PWS OUT connector to the AUX SEL. IN as
shown in FIG. 3, the front panel PWS OUT switch is enabled
to toggle between analog LINE inputs and AUX inputs: this
provides an additional manual procedure to switch from
analog LINE to AUX and vice versa.
4:3.Digital audio input connections
Digital input is supported via Dante™ standard proto-
cols in Dante equipped devices.
In Ottocanali DSP+D ampliers, Dante connectivity is
supported via two Ethernet ports located on the rightmost
side of the rear panels (see Panel F, p. 5). Fast Ethernet
(IEEE 802.3u, 100 Mbit/s) and Gigabit Ethernet (IEEE
802.3ab, 1 Gbit/s) network protocols are supported; Cat5e
or Cat6 standard UTP twisted pair cables shall be used for
connections up to 100 meters (328 ft).
Ethernet cabling must comply to TIA/EIA-568-B and adopt
the T568B scheme pinout, as shown in Panel L, p. 8.
4:3.1.Input selection and Backup policy
In Ottocanali DSP+D ampliers it is possible to select
among three input signal sources per channel: analog (either
LINE or AUX) and two Dante streams (streams 1-to-8 and
9-to-16).
FIG. 2: AUX SEL. IN and PWS OUT connector and wirings.
FIG. 3: Manual procedure to switch from LINE to AUX.
2 3 4 5 6 7 81
PWS OUT
ENERGY
SAVE
ON
OFF
CH 1-2 CH 3-4 CH 5-6 CH 7-8
ONOFF
PWS OUT
switch PWS OUT LINE
input
AUX
input
OFF ACTIVE —
ON —ACTIVE
FIG. 4: Ottocanali DSP+D: Input selec-
tion and backup policy.
14 | Ottocanali Series

Armonía Pro Audio Suite provides an interface to select
the proper input source and manage input gain and delay of
analog and digital sources, in order to compensate transmis-
sion latency and levels (see FIG. 4).
Furthermore Ottocanali DSP+D ampliers implement
a backup policy aimed to improve reliability against signal
fault. By assigning a bus priority to the three different input
sources – analog and two Dante streams – per channel, the
system is able to automatically switch to a reliable input con-
nection in case of signal drop or pilot tone mismatch.
4:4.Ethernet connections
Ottocanali DSP+D ampliers can be remotely controlled
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, as shown in Panel L, p. 8.
4:5.Output connections
CLASS3
WIRING
CLASS 3 WIRING
Output terminals are hazardous: wiring connection
to these terminals require installation by an instruct-
ed person and the use of ready made leads. Take care to
secure the output terminal before switching the device on.
Output connectors are Phoenix PC 5/ 8-STF1-7,62
1777891: single-ended wirings for lo-Z loudspeaker and Hi-Z
distributed lines connections are shown in Panel H, p. 6.
Bridge-tied connection of lo-Z loudspeaker is supported on
adjacent channel pairs 1-2, 3-4, 5-6 and 7-8; inputs must be
physically paralleled as shown in Panel J, p. 6.
Any mixed conguration of low and high impedance
output loads can be realized: in order to set the load
conguration, each channel is provided by four DIP switches
(refer to Panel K, p. 7). Ottocanali Series is congured to
drive Lo-Z loads (Panel K#1) by factory default.
4:5.1.Hi-Z 70V/100V operations
Any channel of an Ottocanali Series amplier can drive
70V/100V (Hi-Z) distributed line of louspeakers. In order to
connect any channel’s output to a 70V/100V line, the rear
panel DIP switch corresponding to the channel must be
correctly set as reported in Panel K, p. 7.
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 (see Panel K, p. 7): two cutting frequency
are available 35 Hz and 70 Hz.
4:6.GPO - Alarms
The Ottocanali’s GPO – general purpose output – system
implements triggering signals to broadcast alarms.
Ottocanali Series provides a pair of paralleled gen-
eral purpose output connections per channel: one Normally
Open NO and one Normally Closed NC.
The connections are available on the back panel via two
12-pin Phoenix MC 1.5/12-ST-3.81 1803675 connectors for
channels 1-to-4 and 5-to-8: see Panel I, p. 6for wirings.
These contacts are used to report potentially dangerous
faults or generally unsafe operation conditions by toggling
alarm switches relative to the following events:
 No AC mains (i.e. system shutdown);
 Thermal stress: the system temperature reaches 70°C,
thermal protections are going to be engaged;
 Short circuit in output wiring: either the loudspeaker or
the line is in short;
 DC presence at the output: a continuously stationary
signal is present at output terminals.
Ottocanali DSP+D feature further monitoring on pilot
tone and output load: the GPO monitoring interface in
Armonía Pro Audio Suite software is accessible
through the GPO button located at the top right
corner in the dashboard of the selected Ottocanali
DSP+D amplier (refer to Section 9 “Armonía Pro
Audio Suite”).
4:6.1.Pilot tone monitoring
Thanks to the built-in DSP, the Ottocanali DSP+D ampli-
ers implement pilot tone detection and alert. Detecting and
alerting features are available for both input and output pilot
tones on each channel.
The detection of a mismatch in the input pilot tone
parameters (frequency and voltage level) can be used to
trigger the backup policy (refer to §4:3.1. Input selection and
Backup policy) and activate an alert through the general
purpose output switch.
The output pilot tone detection relies on an external sig-
nal passing through the amplier or the internal post DSP
pilot tone generator (see FIG. 4); in both cases any mismatch
between the detected signal and the set thresholds triggers
the general purpose output switches.
4:6.2.Output load monitoring
Through Armonía Pro Audio Suite software it is pos-
sible to set the thresholds on the load impedance, at given
frequency, that trigger the general purpose output of any
channel in Ottocanali DSP+D ampliers (see FIG. 5).
FIG. 5: GPO: System monitoring interface.
User Guide | 15

Attenuators
LED chart
Firmware update
5
6
7
Color Signal
metering
Warnings
Lighting Description
RED Clipping SOLID ON
System temperature
above 80°C1
(all channels muted)
YELLOW -6dB SOLID ON
System temperature
above 70°C2
(thermal warning)
GREEN -12dB — —
GREEN -24dB — —
GREEN signal presence
(-60dBV) — —
GREEN —SOLID ON Channel ready
—BLINKING Channel muted3
GREEN —BLINKING AUX inputs are
selected
1Even if only one channel causes thermal overload, all channels are muted and
all red LEDs are on: normal operating is restored when the temperature falls
under the thermal warning threshold.
2Even if only one channel causes thermal warning, all yellow LEDs are on:
thermal protections are engaged.
3Only available in Ottocanali DSP+D.
TAB. 2: Front panel LEDs chart.
The row of potentiometers in the front panel behave
differently on non-DSP ampliers and Ottocanali DSP+D
ampliers:
 In non-DSP Ottocanali ampliers, the potentiometers
act as trimmers on the input level (see Panel C, p.
4): the input signal is muted when the trimmer is
completely turned counterclockwise; on the other
hand, no attenuation is applied when the trimmer is
completely turned clockwise.
 In Ottocanali DSP+D the potentiometers attenuate the
speakers gain (see Panel E, p. 5): they modify the
overall gain applied to the group of ways belonging to
the selected speaker. The amount of gain attenuation
(External gain) is shown in Armonía Pro Audio Suite.
Firmware updates for Ottocanali DSP+D can be loaded
via the front USB port. Updated releases of the Ottocanalil
DSP+D rmware are available on the Armonía forum
(http://www.powersoft-audio.com/en/armonia-forum).
The package contains the rmware update le whose
name is in the form:
update-version#-model.bin
(e.g. update-1.6.0.10-8ch.bin): store the rmware update le
into a USB storage device and follow these instructions:
1. Switch the amplier on and wait for the completion of
the boot sequence.
2. Plug the USB storage device with the rmware update
le to the USB port in the front panel of the amplier.
3. Keep pressed the FW UPDATE pushbutton until the
front LED bars start blinking.
4. The update process lasts in 3-5 minutes. At the end
the system reboots and it is possible to extract the
USB storage device.
B C D E F G HA
CALL SOFT RESET HARD RESET FW UPDATE
PWS OUT
ENERGY
SAVE
ON
OFF
CH 1-2 CH 3-4 CH 5-6 CH 7-8
ONOFF
B C D E F G HA
CALL SOFT RESET HARD RESET FW UPDATE
PWS OUT
ENERGY
SAVE
ON
OFF
CH 1-2 CH 3-4 CH 5-6 CH 7-8
ONOFF
USB Key in
16 | Ottocanali Series

Networking 8
Ottocanali DSP+D ampliers support linear daisy-chain,
star and loop network topologies; in a daisy-chained net-
work the PC with Armonía Pro Audio Suite must always be
at one end of the chain.
Be aware that daisy-chaining does not guarantee reli-
ability in production environment, since any fault may yield
to network sectioning and lost of system control.
When efciency and reliability are paramount, a redun-
dant network topology is advisable. In order to exploit the
Dante features, star and open daisy-chain network topology
are allowed.
8:1.IP addressing
Factory default network settings are DHCP/AutoIP, in
order for the amplier platform to self-congure when con-
nected 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 ad-
dress (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 hostnames of
networked devices. For setting a static IP address please
refer to the Armonía Pro Audio Suite user guide.
8:1.1.IP Addressing troubleshooting
When connecting the Ottocanali DSP+D to a network
environment it may happen that Armonía Pro Audio Suite
does not discover or import the amplier.
Usually this is a problem of IP addressing: both Armonia
and the Ottocanali DSP+D must belong to the same subnet.
If a DHCP server is present on the network and a Ottocanali
DSP+D 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 an Ottocanali DSP+D amplier is es-
tablished during the bootstrap: when the Ottocanali DSP+D
amplier discovers a DHCP server on the network during
the startup, it negotiates the networking parameters. If the
Ottocanali DSP+D does not reveal a DHCP server on the
network during the startup it set itself in AUTO IP mode.
8:2.Dante™ networking
The Dante equiped models of Ottocanali DSP+D ampli-
er support Dante redundant networking via the two Rj45
ports on the rear panel:
 Primary/ETH1 is the Primary network port;
 Secondary/ETH2 is the Secondary network port.
Dante connectivity is always supported on the Primary/
ETH1 Gigabit Ethernet port; the Secondary/ETH2 Gigabit
Ethernet port offers continuity of operation when a parallel
redundant network is established.
In order to implement a Dante network, a computer run-
ning Dante Controller have to be used. Dante Controller is a
software application that manages devices on the network.
Ottocanali DSP+D ampliers are automatically discovered
and displayed in Dante Controller with the default identier
MODELNAME-SERIAL (e.g. 8K4-71520).
Dante networks will almost always require at least one
network switch. Redundant infrastructures may require mul-
tiple switches. For maximum reliability, network switch shall:
 be Rated for Gigabit Ethernet;
 be Non-blocking;
 have Quality of Service (QoS) with at least four queues;
 have Diffserv (DSCP) QoS with strict priority;
 have EEE (Energy efcient ethernet) switched off.
For detailed information on setting up a switch, please
refer to the manufacturer’s documentation.
8:2.1.Redundant network configuration
Dante Redundancy can be set up and used between any
supporting Dante-enabled audio equipment: it works by us-
ing two completely independent and separate networks, the
Primary Network and the Secondary Network.
To setup and use Dante Redundancy, connect the
Ottocanali DSP+D amplier and other redundant Dante-
enabled audio equipment using duplicate Gigabit switches
and Ethernet cables. Connect your computer running Dante
Virtual Soundcard and Dante Controller, and other non-
redundant Dante-enabled audio equipment to the Primary
Network.
The primary and secondary networks MUST NOT be
inter-connected at any point. Make sure any computer is
set to automatically congure its IP address.
User Guide | 17

Armonía Pro Audio Suite 9
9:1.Signal routing and DSP architecture
Signal processing on Powersoft Ottocanali DSP+D am-
pliers accomplishes multiple functions that affect the audio
signal before power amplication; the main adjustements
include gain, polarity, delay, limiting and signal equalization;
some processing are related only to particular stages, such
as limiting and damping control that are implemented on the
output section only, or input priority assignment available in
the input section.
The processing architecture is composed of six sections:
 Input source selection. The input section allows you
to manage input gain and delay of analog and digital
sources, in order to compensate transmission latency
and levels. Furthermore the Ottocanali DSP+D imple-
ment a backup policy aimed to improve reliability
against signal fault.
Armonía Pro Audio Suite is the default conguring in-
terface that allows system setting and customization of the
Ottocanali DSP+D ampliers.
Armonía can be installed on a PC running Windows (XP
SP3 and higher). Freely download Armonía Pro Audio Suite
from the Armonía forum:
http://www.powersoft-audio.com/en/armonia-forum
Ottocanali DSP+D amplifers can connect to the PC run-
ning Armonía through a Fast Ethernet connection. In order
to start remote operation, the device must be discovered
and imported into the Armonía Workspace. Click on the
Discover button in the Remote entities windows, or select it
from the Model list and drag it into the Armonía Workspace.
The callback button – located on the front panel of the
amplier – allows you to highlight the presence of the ampli-
er into the Armonía Workspace.
Once connected to Armonía Pro Audio Suite a double
click on the amplier icon in the Workspace will open the
amplier dashboard. Here it is possible to access and con-
gure all the features of the Ottocanali DSP+D.
9:2.Purposed workflow
Once the loudspeaker layout has been dened, we
suggest a bottom-up conguration procedure that starts
from the conguration of the transducers layout and raises
toward the input selection and the denition of the backup
policy.
Shortly, the main steps to follow are:
1. Set Lo-Z and Hi-Z loads and lters on output channels.
2. Load the loudspeaker presets or manually congure
the loudspeaker layout (grouping output channels,
crossovering, limiting, speaker processing, etc.).
3. Dene the routing path and the levels of the signals
from the input channels to the active output channels
(matrix).
4. Select the signal source from the input connections
and dene the backup policy (input source selection).
5. Dene GPO assignment and alarms thresholds.
 Matrix. The innovative routing engine of Ottocanali
DSP+D allows any input to be routed to any output.
The Matrix implements a non-boolean rooting archi-
tecture allowing free channel assignment and level
adjustment.
 Advanced processing. This allows you to optimize
levels and shape the sound of the input signals. Gain
and polarity adjustment, asymmetric raised-cosine
full parametric lters, delay and mute are available on
each channel routed to the speaker section.
 Speaker equalization. Designed to manage the con-
guration presets for multi-way systems, it implements
FIR and IIR full parametric lters.
 Speaker routing. Once properly grouped, the output
channels are presented to the matrix as speakers – a
single row representing a speaker (actually group of
ways) – allowing a high grade of granularity in signal
processing.
 Output processing. This allows ne tuning of output
signals, aiming to optimize power delivering and loud-
speaker performance. It provides gain and polarity
adjustment, IIR and FIR full parametric lters, delay,
mute, limiting and damping control on each output
channel.
FIG. 6: Armonía Pro Audio Suite.
18 | Ottocanali Series