powersoft Duecanali 3904 User Manual

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10
Duecanali User Guide
3.4 The Show Always Goes On
The Duecanali series offers complete protection against any
possible operation error. Every amplier in this series is designed
to work under a large range of possible conditions, delivering
maximum power with maximum safety and an outstanding long
term reliability. Anticipating potential problems at the design stage
means your show always goes on!
4 Installation
4.1 Unpacking
Carefully open the shipping carton and check for any noticeable
damage; the gure below ( FIGURE 5) shows the packing view.
Every Powersoft amplier is completely tested and inspected
before leaving the factory and should arrive in pristine condition.
In the unlikely event that you should encounter any damage,
please notify the shipping company immediately. Be sure to save
all packing materials for the carrier’s inspection.
TheDuecanali series box contains the following:
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1 Duecanali amplier
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1 x AC Mains cord
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1 x User Guide
FIGURE 5:
Manual
Amplifier
Mains cable
Duecanali packaging box
4.2 Mounting
All Powersoft ampliers are designed for standard 19” rack
mounting; there are four front panel holes and two rear-lateral
holes. In order to limit the risk of mechanical damages, ampliers
must be xed to the rack using both frontal as well as rear
mounting holes.
4.3 Cooling
All Powersoft ampliers implement a forced-air cooling system to
maintain low and constant operating temperatures. Drawn by an
internal fan, air enters through the slots in the front panel and is
forced over all components, exiting at the back of the amplier.
The amplier’s cooling system features an “intelligent” variable-
speed DC fan which is controlled by heat sink temperature sensing
3 Welcome
3.1 Introduction
Congratulations on buying a Powersoft Duecanali amplier!
Powersoft is a leading company in the eld of high efciency
audio power management. The Powersoft Class D technology
has changed the way the world looks at professional audio
amplication: no other amplier’s performance comes close for
applications demanding high power and long term reliability.
Thanks to amazing reductions in heat output and weight, without
sacricing output powers, Powersoft ampliers can be used in an
unlimited range of PA applications such as opera houses, theaters,
churches, cinema, and theme parks.
3.2 The Duecanali Series
The Duecanali series has many advanced features, digital control
of many parameters, adjustable maximum mains consumption,
selectable digital presets and a graphic display that shows detailed
information of the status of the amplier. All Duecanali ampliers
come with built in Power Factor Correction. This unique feature
ensures that a predominantly resistive load is presented to the
mains power, thus minimizing current distortion and voltage/
current displacement. This leads to improved performance of the
amplier at high levels of output and avoids mains-voltage collapses,
typical of standard and switching power supplies. Another great
advantage of this technology is that its performance is, to a large
extent, independent of mains voltage. The rated output power
does not vary with load/line conditions.
3.3 More sound and less weight
Class D technology based ampliers are highly efcient, delivering
greater power to speakers with reduced heat dissipation: typical
running efciency of output stages is 95%, with only 5% of input
energy dissipated as heat. This allows for smaller dimensions,
weight and power consumptions.
Contrary to conventional ampliers which achieve highest
efciency only at full rated power output, Class D efciency is
almost independent of output level. Music has an average power
density of 40% of its peak value; this means that other (non-
class D) ampliers can easily generate 10 times more heat than
Powersoft products for the same sound pressure level.
Powersoft ampliers deliver crystal-clear highs, and a tight, well-
dened low end: the most accurate reproduction of an audio
signal. Solid time proven design features ensure extremely high
performance in terms of super low total harmonic distortion,
optimal frequency response, high power bandwidth and damping
factor across a vast number of application scenarios. Powersoft’s
multi patented application of Pulse Width Modulation (PWM)
high frequency sampling techniques is just one of the many factors
contributing to the Duecanali series’ high performance ratings
across the audio bandwidth.

powersoft Duecanali 3904 Specifications

General

Brand	powersoft
Model	Duecanali 3904
Category	Amplifier
Language	English