powersoft Ottocanali 4K4User Guide v 1.6March 2013Ottocanali 12K4, Ottocanali 4K4, Ottocanali 8K4, Ottocanali 12K4 User Manual

powersoft _ottocanali_4k4_8k4_12k4_uguide_en_v1.6
© 2013 Powersof t

Powersoft • Via Enrico Conti, 5 • 50018 Scandicci (FI) • Italy

[phone] • [e-mail] • www.powersoft-audio.com

DO000140

Ottocanali 4K4

User Guide v 1.6

March 2013

Ottocanali

12K4

Ottocanali 8K4

Ottocanali 12K4

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powersoft _ottocanali_4k4_ 8k4_12k4_uguide_en_v1.6
© 2013 Powersof t

Powersoft • Via Enrico Conti, 5 • 50018 Scandicci (FI) • Italy

[phone] • [e-mail] • www.powersoft-audio.com

Ottocanali 4K4/8K4/12K4

User Guide

1 Warnings. ........................................5

1.1 Impor tant Safety Instructions . ......................5

1.2 Warning Notices . .................................5

1.2 .1 Locati on. ....................................5

1.2.2 Precautions Regarding Installation...............5

1.3 Safety Rules . .....................................6

1.4 Speaker Damage . .................................6

1.5 Speaker Output Shock Hazard . ....................6

2 Front and Rear Panel Reference Figures. ...............7

3 Welcome. ........................................9

3.1 Introduction . .....................................9

3.2 The Ot tocanali Series . ............................9

3.3 More Sound and Less Weight . .....................9

4 Installation........................................9

4.1 Unpacking ........................................9

4.2 Mounting . ......................................10

4.3 Cooling . ........................................10

4.4 Operating Precautions ............................10

4.5 Grounding . .....................................10

4.6 AC Mains Connection . ...........................10

5 Connections and Operation. .......................11

5.1 Introduction .....................................11

5.2 Front Panel Controls Access .......................11

5.3 Front Panel Adjustments . .........................11

5.3.1 Output Level Adjustments. ...................11

5.3.2 Energy Save. ................................12

5.4 Front Panel Monitoring . ..........................12

5.5 Connecting Audio Inputs . ........................13

5.6 Connecting Audio Outputs . ......................13

5.7 Hi-Z 70V/100V Operations . ......................14

5.7.1 Rear panel DIP switches. .....................14

5.8 Bridge Mode Connection . ........................14

5.9 GPIO Operations . ...............................14

5.9.1 A larms ......................................14

5.9.2 Remote ON/OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . .16

6 Protection.......................................16

6.1 Turn On/Turn Off Muting . ........................16

6.2 Shor t Circuit Protection . .........................16

6.3 Thermal Protection . .............................16

6.3.1 Thermal Warning. ...........................16

6.3.2 Thermal Shutdown. .........................16

6.4 DC Fault Protection . .............................16

6.5 Input/Output Protection . .........................16

7 User Maintenance.................................16

7.1 Cleaning . .......................................16

7.2 Service . ........................................17

7.3 Dust Removal . ..................................17

8 Warranty........................................17

9 Assistance. ......................................17

10 Technical specication. ............................18

10.1 Ottocanali 4K4 . .................................18

10.2 Ottocanali 8K4 . .................................19

10.3 Ottocanali 8K4 DSP+AVB. ........................20

10.4 Ottocanali 12K4 . ................................21

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powersoft _ottocanali_4k4_ 8k4_12k4_uguide_en_v1.6
© 2013 Powersof t

Powersoft • Via Enrico Conti, 5 • 50018 Scandicci (FI) • Italy

[phone] • [e-mail] • www.powersoft-audio.com

Ottocanali 4K4/8K4/12K4

User Guide

1 Warnings

1.1 Important Safety Instructions

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

!

CAUTION: 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.

“WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK , DO NOT EXPOSE THIS APPARATUS TO RAIN
OR MOISTURE. OBJECTS FILLED WITH LIQUIDS, SUCH AS
VASES, SHOULD NOT BE PLACED ON THIS APPARATUS”

“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”

SAFEGUARDS: Electrical energy can perform many useful
functions. This unit has been engineered and manufactured to
assure your personal safety. Improper use can result in potential

electrical shock or re hazards. In order not to defeat the

safeguards, obser ve the following instructions for its installation,
use and servicing.

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Read these instructions.

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Keep these instructions.

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Heed all warnings.

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Follow all instructions.

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Do not use this amplier near water.

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Clean only with a dry cloth.

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Do not block any ventilation openings.

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Install in accordance with the manufacturer’s instructions.

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Do not install near any heat sources such as radiators, heat

registers, stoves, or other apparatus (including ampliers)

that produce heat.

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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 t into your outlet, consult an electrician for

replacement of the obsolete outlet.

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Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.

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Only use attachments/accessories specied by the

manufacturer.

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Unplug this amplier during lightning storms or when unused
for long periods of time. Refer all servicing to qualied ser vice
personnel. Servicing is required when the amplier has been

damaged in any way. For example if the power-supply cord
or plug have been damaged, if liquid has been spilled or

objects have fallen into the amplier, if the amplier has been

exposed to rain or moisture, if it has been dropped or if it
does not operate normally.

EXPLANATIONS OF GRAPHICAL SYMBOLS:

“The Lightning Flash with arrowhead symbol within an equilateral
triangle is intended to aler t the user to the presence of uninsulated
“dangerous voltage” within the product enclosure that may be of

sufcient magnitude to constitute a risk of shock to persons”.

!

“The exclamation point within an equilateral triangle is intended
to aler t the user to the presence of important operating and

maintenance (servicing) instructions in the literature accompanying

the product”.

1.2 Warning Notices

!

1.2 .1 Location

Install the amplier in a well-ventilated location where it will not

be exposed to high temperature or humidity.

Do not install the amplier in a location that is exposed to direct

sun rays, or near hot appliances or radiators. Excessive heat can
adversely affect the cabinet and internal components. Installation

of the amplier in a damp or dusty environment may result in

malfunction or accident.

1.2.2 Precautions Regarding Installation

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. Install this amplier as far as
possible from tuners and T V sets. An amplier installed in close

proximity of such equipment may experience noise or generic
performance degradation.

WARNING. To prevent re or electric shock:

▶

The ventilation openings must not be impeded by any item
such as newspapers, tablecloths, curtains etc; keep a distance
of at least 50cm from the front and rear ventilation openings

of the amplier.

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Do not expose this amplier to rain or moisture.

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This equipment must not be exposed to dripping or splashing

liquids: objects lled with liquids, such as vases, must not be
placed on the amplier.

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6

Ottocanali 4K4/8K4/12K4 User Guide

1.3 Safety Rules

!

▶

This device must be powered exclusively by earth connected
mains sockets in electrical networks compliant to the IEC 364
or similar rules.

▶

It is absolutely necessary to verify this fundamental
requirement of safety and, in case of doubt, require an

accurate check by qualied personnel.

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The manufacturer cannot be held responsible for damages
caused to persons, things or data due to an improper or
missing ground connection.

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Before powering this amplier, verify that the correct voltage

rating is being used.

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Verify that your mains connection is capable of satisfying the
power ratings of the device.

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Do not spill water or other liquids into or on the amplier.

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Do not use this ampliler if the electrical power cord is frayed

or broken.

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Do not remove the cover. Failing to do so will expose you to
potentially dangerous voltage.

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No naked ame sources such as lighted candles should be
placed on the amplier.

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Provide a sectioning breaker between the mains connections
and the amplier. The suggested device is a 16A/250V AC, C
or D curve, 10K A.

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Contact the authorized service center for ordinary and
extraordinary maintenance.

1.4 Speaker Damage

!

Powersof t Class D ampliers are among the most power ful
professional ampliers available and are capable of producing

much more power than many loudspeakers can handle. It is the

user’s responsibility to use speakers suitable to the amplier and

to use them in a sensible way that will not cause damage.

Powersof t will not be held responsible for damaged speakers.
Consult the speaker manufacturer for power handling
recommendations.

Even if you reduce the gain using the amplier’s front panel

attenuation controls, it is still possible to reach full output power if
the input signal level is high enough.

A single high-power tone can damage high frequency drivers
almost instantaneously, while low frequency drivers can usually
withstand very high, continuous power levels for a few seconds
before they fail. Reduce power immediately if you hear any
speaker “bottoming out” - harsh pops or cracking distor tion that
indicate that the speaker voice coil or diaphragm is striking the
magnet assembly.

Powersof t recommends that you use ampliers of this power
range for more headroom (cleaner sound) rather than for

increased volume.

1.5 Speaker Output Shock Hazard

A Class D amplier is capable of producing hazardous output

voltages. To avoid electrical shock, do not touch any exposed

speaker wiring while the amplier is operating.

This manual contains important information on operating your
Powersoft amplier correctly and safely. Please read it carefully
before operating your amplier. If you have any questions,
contact your Powersoft dealer.

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7

Ottocanali 1204 User Guide

2 Front and Rear Panel Reference Figures

REF. FIGURE 1: Front panel view with closed side panels

Ottocanali

8K4

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8

Ottocanali 4K4/8K4/12K4 User Guide

REF. FIGURE 2: Front panel view with opened side panels

REF. FIGURE 3: Back panel view

Energy save switch (per channel pair)

Preset selection switches (DSP version only)

DSP LEDs (DSP version only)

24V DC back panel PWS OUT voltage
source enable pushbutton switch

Output attenuators

(Ch1-Ch8)

Multifunction LEDs (Ch1-Ch8)

Air vents

On/OFF switch

AC mains power plug

70V/100V options

DIP switches

Audio outputs Line inputs

(Channels 1 to 4)

Line inputs

(Channels 5 to 8)

AUX inputs

(Channels 5 to 8)

AUX inputs

(Channels 1 to 4)

Alarm outputs

(Channels 1 to 4)

Alarm outputs

(Channels 5 to 8)

AUX input selection

Remote
ON/OFF
switch

Remote AUX supply

(DSP version only)

24V DC output enabled by

front panel switch