More Sound And Less Weight; Superior Sound-Sonic Accuracy; Totally Digital With High Reliability - powersoft DIGAM K series User Manual

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1 Introduction
Powersoft is a leading company in the field of high efficiency audio power management. The totally new Powersoft's
DIGAM (DIGital AMplifier) technology has changed the way the world looks at professional audio amplification. No
other amplifiers come close for applications demanding high power and long term reliability. Thanks to amazing
reductions in heat output along with reductions in weight and the specific high output power, DIGAM amplifiers can be
used in an unlimited range of applications such as concert touring, opera houses, theatres, churches, cinema, theme
parks, television sound stages and industrial applications.
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More sound and less weight

Compared to a conventional amplifier, Powersoft DIGAM technology offers very high efficiency and delivers more
power to the loudspeakers with much reduced heat dissipation. This greater efficiency enables dimensions, weight and
power consumption to be reduced. The output stages of the amplifiers typically run at 95% efficiency, dissipating only
5% of the input energy as heat.
One of the most interesting characteristics is that DIGAM's efficiency is almost independent of output level.
Conventional amplifiers achieve their best efficiency only at full rated power output. Since standard music has an
average power density of 40% of the maximum level, conventional amplifiers can easily generate 10 times more heat
than DIGAM for the same volume of sound.

Superior Sound-Sonic Accuracy

Crystal-clear highs, and a tight, well-defined low end: the most accurate reproduction of an audio signal. Patented
design features ensure very high performance in parameters such as distortion, frequency response, slew rate, power
bandwidth and dumping factor.

Totally Digital with High Reliability

The DIGAM series is based on PWM technology that has been used for 30 years or more in power supplies and
inverters. PWM provides high reliability, small size, low weight and high efficiency. A PWM converter works as a high
frequency sampler, converting the variable amplitude (audio) signal into an impulse sequence with average value
equal to the audio input.
DIGAM amplifiers use very high sampling frequencies to obtain high performances across the audio band. Powersoft
holds several patents on the DIGAM technology.
The Best Amplifier for Your Mains
Powersoft is the first amplifier manufactor that adopt Power Factor Correction. This unique feature ensures that a
predominantly resistive load is presented to mains, minimizing current distortion and voltage/current displacement
This leads to much improved performance of the amplifier 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.
The K Series
K Series has many advanced features, Digital control of many parameters, adjustable maximum mains consuption,
selectable digital presets and a graphic display that shows detailed information of the status of the amplifier. You can
appreciate the functionality of these and a lot of other features by reading this manual carefully.
The Show Always Goes On
DIGAM Series is completely protected against every possible error in operation and is designed to work under every
condition. It gives you maximum power with maximum safety and increases long-term reliability. Anticipating potential
problems at the design stage means your show always goes on!