MUSICSON DP SYSTEMS - 1 Introduction

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1.-INTRODUCTION
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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.
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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.
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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.
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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.
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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.
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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.
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In an ongoing step, all this information has been checked and adjusted
withthefirstprototypesthroughdifferentaudioanalysissoftware.
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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.
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