1. - INTRODUCTION
The new DP product line, which has been developed and manufactured by
Musicson, conceals an important technological step forward in sound
reinforcement. Its applications range from live concerts to recorded music
in open spaces or closed rooms.
Musicson's engineers have used state-of-the-art last generation software
tools in order to simulate acoustic elements as well as to produce the
corresponding prototypes.
The different frequency ways that form the DP-series have been optimised,
even before producing the prototypes, through several simulation processes.
In order to develop the low- frequency units, a special care has been
taking, not only simulating the differences in frequency response and
performance, but also further factors have been taken care of for the first
time.
Maximum excursion of the mobile parts of the speakers have been optimised
by acting on the geometry of the enclosures, resonance frequency, length and
width of wave-guiding every elements that form, for example, a folded horn
unit.
On top of this, very concrete filters have been used within the ISP-1014 and
the ISP-2022 dynamics processors in order to achieve an optimal frequency
response and a minimum loudspeaker excursion, resulting in a reduced
mechanical fatigue of these elements.
On the other hand, equally important factors, such as the sound pressure
level, acoustic power, extreme current and voltage values at the speaker
poles, speed and acceleration of the electro acoustic elements and the air
moved within the enclosures and through the vents, etc.
The simulation software has also been used in order to optimise high and
mid- frequency band functioning, something almost unthinkable some years
ago. A linear frequency response, effective bandwidth, sound pressure and
also factors such as directivity, horizontal and vertical spread, possible
frequency overlapping produced through horns and phase plugs, depending on
the distance to the audience, are all factors that have received careful and
in-depth attention.
In an ongoing step, all this information has been checked and adjusted
with the first prototypes through different audio analysis software.
All this has resulted in the final development of the DP sound systems,
formed by four different enclosures and two signal processors, power
control, that are designed to perfectly fit together for an optimum
performance, frequency response and functional parameters.
