1
DPSYSTEMSUSERMANUAL
1.-INTRODUCTION......................................Page2-10
1.1.-DP-3SYSTEM...............................Page3-7
1.1.1.-DP-HENCLOSURE...................Page4,5
1.1.2.-DP-SBENCLOSURE...................Page6,7
1.2.-DP-4SYSTEM..............................Page8-10
1.2.1.-DP-GENCLOSURE....................Page8,9
1.2.2.-SUB218BSENCLOSURE...............Page10
2.-ELECTRONICSANDAMPLIFICATION.....................Page11-13
2.1.-DP-3SYSTEM...............................Page11,12
2.2.-DP-4SYSTEM...............................Page12,13
3.-SYSTEMWIRINGSCHEMATICS.........................Page14,15
4.-DP-SYSTEMSPAREPARTS............................Page16,17
5.-SYSTEMSETUP......................................Page17-20
5.1.-DP-3SYSTEM...............................Page17-19
5.2.-DP-4SYSTEM...............................Page19,20
6.-CONTROLELECTRONICS...............................Page21-27
6.1.-ISP-2022.................................Page21-24
6.2.-ISP-1014.................................Page24-27
7.-CURVES.........................................Page28-31
7.1.-RESPONSECURVES..........................Page28,29
7.2.-POLARGRAPHICS.........................Page29-31
8.-SETUPRECOMMENDATIONS.ELEVATIONSSYSTEMS........page32-37
8.1.-DP-3SYSTEM...............................page32,33
8.2.-DP-4SYSTEM...............................Page33-37
9.-USEFULSETUPSWITHTHEDP-4.......................Page37-41
10.-WARRANTYEXTENSIÓN...............................-+Page42
WE,ATMUSICSONWANTTOTHANKYOUFORTHETRUSTSHOWNTOWARDSOURPRODUCTS.
PLEASE READ THIS MANUAL CAREFULLY BEFORE STARTING YOUR NEW DP-3 OR DP-4
SYSTEM, IN ORDER TO AVOID ANY KIND OF PROBLEM AND TO OBTAIN ITS HIGHEST
PERFORMANCE.REMEMBERTHATYOUHAVEJUSTOBTAINEDAHIGH-TECHNOLOGYPRODUCT.
INORDERTOCONTACTUSFORANYREASON,PLEASESEEOURWEBSITE.
WEB:www.musicson.com
E-MAIL:musicson@musicson.com
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1.-INTRODUCTION
The new DP product line, which has been developed and manufactured by
Musicson, conceals an important technological step forward in sound
reinforcement.Itsapplicationsrangefromliveconcertstorecordedmusic
inopenspacesorclosedrooms.
Musicson'sengineershaveusedstate-of-the-artlastgenerationsoftware
tools in order to simulate acoustic elements as well as to produce the
correspondingprototypes.
ThedifferentfrequencywaysthatformtheDP-serieshavebeenoptimised,
evenbeforeproducingtheprototypes,throughseveralsimulationprocesses.
In order to develop the low- frequency units, a special care has been
taking, not only simulating the differences in frequency response and
performance,butalsofurtherfactorshavebeentakencareofforthefirst
time.
Maximumexcursionofthemobilepartsofthespeakershavebeenoptimised
byactingonthegeometryoftheenclosures,resonancefrequency,lengthand
widthofwave-guidingeveryelementsthatform,forexample,afoldedhorn
unit.
Ontopofthis,veryconcretefiltershavebeenusedwithintheISP-1014and
the ISP-2022 dynamics processors in order to achieve an optimal frequency
response and a minimum loudspeaker excursion, resulting in a reduced
mechanicalfatigueoftheseelements.
Ontheotherhand,equallyimportantfactors,suchasthesoundpressure
level, acoustic power, extreme current and voltage values at the speaker
poles,speedandaccelerationoftheelectroacousticelementsandtheair
movedwithintheenclosuresandthroughthevents,etc.
Thesimulationsoftwarehasalsobeenusedinordertooptimisehighand
mid- frequency band functioning, something almost unthinkable some years
ago. A linear frequency response, effective bandwidth, sound pressure and
alsofactorssuchasdirectivity,horizontalandverticalspread,possible
frequencyoverlappingproducedthroughhornsandphaseplugs,dependingon
thedistancetotheaudience,areallfactorsthathavereceivedcarefuland
in-depthattention.
In an ongoing step, all this information has been checked and adjusted
withthefirstprototypesthroughdifferentaudioanalysissoftware.
AllthishasresultedinthefinaldevelopmentoftheDPsoundsystems,
formed by four different enclosures and two signal processors, power
control, that are designed to perfectly fit together for an optimum
performance,frequencyresponseandfunctionalparameters.
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1.1.-DP-3SYSTEM
ThefirstsystemdevelopedwiththesefourenclosuresistheDP-3.Thisisan
activethree-waysystem,featuringthreedifferentenclosures:TheDP-Hfor
thereproductionofhigh-midfrequenciesandtwoequallyshapedenclosures
to reproduce low and very-low frequencies: DP-SB1 and DP-SB2. This whole
systemiscontrolledthroughtheISP-1014processor.
1.1.1.-DP-HENCLOSURE
The DP-H enclosure is an active-two-way acoustic system to reproduce
high-mid frequencies, conceived as al long-throw unit for great musical
indoorandoutdoorevents.
Bothwaysarebuiltontotheirownhorn,optimisedtocompletelycontrol
theirdispersionangles.
Forthereproductionofthemediumfrequencies,a12”speakerwitha3”
(77mm)movingcoil,mountedonanenhancedmagneticsystem,hasbeenused
in order to increase performance without increasing harmonic distortion.
Also,theoutputsurfacehasbeenreducedto14cm(5.5”)toincreaseits
efficiency.Thishasbeenachievedthroughthedesignofaninnovativephase
plug,builtwiththreeconcentricindependentpieces.Thisallowsustohave
a constant distance between the cone surface and the throat, eliminating
phase cancellations produced in other phase plug types such as ob’s or
bullets. The speaker also features cooling elements for the moving coil,
allowing higher power levels and, at the same time, and much lower power
compression through heat. The cone has received a special coating that
avoids deformation through higher-pressure levels, translated into lower
harmonicdistortionathighpowerlevelsandprotectingitagainstadverse
external agents such as humidity. Through all this an extremely flat
frequencyresponseupto1200Hzisachieved(togetherwiththeuseofthe
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ISP-1014), offering, thus, a high level of clarity and intelligibility
withinthevocalfrequencyrange.
For the high and high-mid frequencies, we have used a 4” (100mm)
diaphragm,2”-throatcompressiondriver.ThisdriverfromARPfeaturesvery
specialcharacteristics.
1.-Anoptimisedmagneticstructurehasbeenusedformaximumefficiency.
Inordertoachievethis,aNeodymiummagnethasbeenused,offering:
a. - 20% more induction in the magnetic gap, increasing the energy
transferred to the coil and, thus, to the moving system. This means an
averageperformanceincreaseof2dBtothe2”driver,thisbeingespecially
significantforfrequencyhigherthan100Hz,wherethisincreasereachesup
to4dB.Alinearresponseupto20kHzisachievedthisway.
b.-Areductioninweightof45%and25%intheoveralldiameter.
2.-Ontheotherhand,atitaniumdiaphragmwithaspecialconfiguration
hasbeenusedinordertoreduceharmonicdistortion.Themembraneisfixed
toasuspensionmadeofatechnicalpolymer.Theuseofthispolymerhastwo
reasons: first, the self-resonance of this material is lower within the
audible frequency range, when used at high power levels, second, this
material is more resistant to deformation through diaphragm excursion. It
hasbeenproventhattitaniumsuspensionsdeterioratethefrequencyresponse
andincreasedistortionlevelsafter3to5yearsofuse,withinthissize
of drivers. The mechanical resistance of these materials is much higher,
almostdoublingtheirlifecycle.
Inordertooptimisethefrequencyresponse,anexponentialhornhasbeen
used,allowingthesystemtoperformwithoutlossesupto19500Hz.
This enclosure includes a rigging system to configure clusters, which
enhancethesoundspreadandthrow.Itincludesalsoafrontgrille,covered
withasturdyfilteringtechnicalfoamtoprotectthespeakers.(OnlyDP-4)
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TECHNICALSPECIFICATIONFORMIDFREQUENCIES
-SPL(1W/1m)............108.5dB
-Max.SPL(Cont.).........133.5dB(Calculated)
-Covering(dispersion)....60x40º
-RMSPower................350W
-Impedance................8Ohm
-Frequencyresponse.......220-1200Hz(conISP-1014)
TECHNICALSPECIFICATIONFORHIGHFREQUENCIES
-SPL(1W/1m)...........112dB
-Max.SPL(Continuo).....130.5dB(Calculado)
-Covering(dispersion)...40ºx20º(Hasta10KHz)
-RMSPower...............150W
-Impedance...............8Ohm
-Frequencyresponse......1200-19500Hz(conISP-1014)
RESPONSEOFMIDFREQUENCIES,HIGHFREQUENCIES
ANDDP-HENCLOSURE(WITHISP-1014)
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1.1.2.-DP-SBENCLOSURE
ThisenclosureistobeconfiguredwiththeDP-HtoformtheDP-3livesound
system.
Forbassandsubbassfrequencysoundreinforcement,afoldedhornenclosure
hasbeendevelopedandoptimised,inordertoensurehighperformancelevels
with“kicking”bassesandreallydeepsubbasses.
Special care has been taken in the design and optimisation of the wave-
guidingpartsoftheenclosure,includingthroats,openingsandlengthsof
each one. The result is a best-possible response with a minimum speaker
excursion.Thiswayalinearresponseandabandwidth,reachingfrom45Hz
to220Hz,havebeenachieved,performinganSPLof102dB1W/m.
Toconfigurea DP-3system, twounitsareneeded,calledDP_SB1andDP-
SB2,whichareequalandusea700W18”speakereach.MUSICSONengineers
havealsooptimisedthisspeaker,inordertoimprovetheirresponsewithin
thistypeofenclosure.
On one hand, a more powerful magnetic structure is used to improve the
speaker’sdynamics,enhancingthetransientresponse.Atthesametime,a4”
(100mm) moving coil, mounted on a Kapton® former, is used. The thermally
efficientcopperiswoundonbothsidesoftheformer,achievinghigherheat
dissipationandstructuralstiffness.Thisallowsthepowerapplicationof
700WRMS(3000Wpeak).
Alsotheheightofthecoilhasbeenenlarged,inordertoallowagreater
excursion.Inorder toimprovethecoolingofthecoil,twocoolingvents
arepresent,differentfromtheconventionalsinglecoolingvent.
Itincludesalsoafrontgrille,coveredwithasturdyfilteringtechnical
foamtoprotectthespeakers.
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TECHNICALSPECIFICATIONS(EACHENCLOSURE)
-SPL(1W/1m)............102.5dB
-Max.SPL(Continuo)......131dB(Calculated)
-RMSPower................750W
-Impedance................8Ohm
-Frequencyresponse.......45-220Hz-3dB(withISP-1014)
RESPONSEOFTHEDP-SBENCLOSURE(WITHISP-1014)
1.2.-DP-4SYSTEM
This next, more sophisticated sound system is configured through four
active ways. Therefore, the enclosure model DP-H is used for high-mid
frequencies,asdescribedearlier.Asecondenclosure,theDP-G,isaddedto
reproduce bass frequencies and the SUB-218BS for the sub bass range,
including slight modifications to its predecessor to adapt it to the DP
series.ThewholeconfigurationiscontrolledthroughtheISP-2022processor
for the SUB-218BS and through the newly developed ISP-1014 for the other
threefrequencyways.
AstheDP-Hhasalreadybeendescribedintheprevioussection,wewill
nowproceedwiththedetailsoftheothercomponents:
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1.2.1.-DP-GENCLOSURE
TheDP-Genclosureisconceivedtoreproducethebassfrequencyrange.It
willonlybeusedwiththe4-wayactiveDP-4configuration.
Thisenclosureisdesignedasadoublesixthorderband-passsystem.This
configuration allows higher sound pressure levels within a narrower band
than other systems, suchas reflexor hermeticsystems. Throughacorrect
approximation, its two points of minimum excursion can be set within the
workingrange,thusreducingitsoverallmeanexcursionby40%atthesame
powerlevel.Thisallowsustoapplymorepowertothespeakersandincrease
thelongevityofthemobileelementsatthesametime,keepingperformance
andresponseattheoriginallevels.
The DP-G uses two identical 500W rms 15”loudspeakers, featuring a4”
(100mm) coil, wound on a Kapton® former fixed onto a double spider and
mountedonapowerfulmagneticsystem.Allthisresultsinareproductionof
kickingbasses.
This enclosure includes a rigging system to configure clusters, which
enhancethesoundspreadandthrow.Itincludesalsoafrontgrille,covered
withasturdyfilteringtechnicalfoamtoprotectthespeakers.
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TECHNICALSPECIFICATIONS
-SPL(1W/1m)............105dB
-Max.SPL(Cont.).........137dB
-RMSPower................1000W
-Impedance................4Ohm
-Frequencyresponse.......65-220Hz(conISP-1014)
RESPONSEOFTHEDP-G(WITHISP-1014)
1.2.2.-SUB-218BSENGLOSURE
Thisenclosureactsasasubbassreinforcementsystem,usedwiththeDP-
4 sound system. It is built as a reflex box, using two identical 18”
speakers. Its inside and the measures and shape of the vents have been
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carefullystudiedtooptimisethefunctioningoftheloudspeakers.Through
itsnewdesign,thefrequencyresponsehasbeenenhancedandtheexcursion
ofthemobilecomponentshasbeenminimised.TogetherwiththeISP-2022,its
frequencyresponserangesfrom28,5Hzto90Hz(-3dB),resultinginavery
deepandpowerfulsubbassresponse.
Itincludesalsoafrontgrille,addingstiffnesstothesystemanditis
covered with sturdy, highly resistant filtering technical foam. It also
includes100mmcasterstoeasehandling.
TECHNICALSPECIFICATIONS
-SPL(1W/1m)............102dB
-Max.SPL(Cont.).........134dB
-RMSPower................1200W
-Impedance................4Ohm
-Frequencyresponse.......28.5-90Hz-3dB(conISP-2012)
RESPONSEOFTHESUB-218BSENCLOSURE(WITHISP-2022)
2.-ELECTRONINANDAMPLIFICATION
Musicsonservesallthenecessaryelectronicstocontroltheconfigured
systemsinconvenientflightcases.TheuseofMusicson’ssignalprocessors
isabsolutelynecessary,sincetheycontaintheexactfiltersforanoptimal
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performanceofeachfrequencyway,controlthepowerappliedtoeachspeaker
andtakecareofpresetphaseadjustments,inordertoresultinacorrect
phasesumofthedifferentbands.
2.1.-DP-3SYSTEM
The DP-3 system features three active ways. Its basic configuration is
formedof:
OneDP-SB1,oneDP-SB2,andoneDP-Hperchannel.
Topowerthe18”speakersoftheDP-SB1andDP-SB2,weuseonechannelof
theMusicsonHE-1202professionalpoweramplifier,featuring1200Wrmsper
channel.Bothspeakersarewiredinparallelthroughtherearpanelofthe
enclosure.
Topowerone12”speaker,wewilluseonechanneloftheMusicsonP-804
professional amplifier, featuring 800 W rms per channel. The 2”-driver of
theDP-Hwillbepoweredthroughanotherotherchannelofthisamplifier.
Thus,foraminimumstereoconfiguration,wewillneedaflightcasethat
includes one Musicson HE-1202 and one Musicson P-804 amplifier. Both are
presetatthefactoryforoptimumperformance.
The flight case has the connections for signal input and speaker power
output,aswellasthemainsconnector,mountedonachassisonthefront.
Ontherear,asecondchassisservesexclusivelytoconnectthisflightcase
totheextensionunit,featuringtwosignaloutsforthebasssignalandan
additional“Schuko”sockettosupplypowertothispowerextensionunit.
Furthermore, the signal processor ISP-1014 shall be used together with
the power amplifiers, as they are specifically designed to optimise the
system’s performance. This processor includes an active three-way filter,
configured with 24 dB/oct Linkwitz-Riley filters, with both high pass and
lowpass,optimisedtoimprovethefrequencyresponseofallthreeways.It
also includes a fourth active high pass filter that servesto effectively
and quickly equalise the highest frequencies (from 10 to 20 kHz) of the
high-frequencyway.
It also counts on independent power control circuits for each way with
attack and release thresholds adjusted to each frequency margin, avoiding
the“pumping”effectwhenthesystemisworkingatfullperformance.
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The use of the processor is also important due to the fact that it
includes delay circuitry between the ways that produce an optimisation of
the sum of them all at their crossover frequencies, obtaining a totally
linearresponse.
Theamplificationandcontrolelectronicsofthecompletesystemisbuilt
intooneflightcaseforbothchannels(stereo).
2.2.-DP-4SYSTEM
Thisisanactivefour-wayconfigurationoftheDP-system.Itcomprises
oneSUB-218BS,2DP-Gand2DP-Hperchannel,asabasicconfiguration.
Topowerthetwo18”speakersoftheSUB-218BSwewilluseonechannelof
theMusicsonHE-1202professionalpoweramplifier,featuring1200Wrmsper
channel.Bothwillbewiredinparallelinternally.
Topowerthefour15”speakersoftheDP-Genclosure,twochannelsofone
oftheMusicsonP-804professionalpoweramplifiers,featuring800Wrmsper
channel.
Topowertwo12”speakersandtwo2”driversontheDP-Henclosure,two
furtherchannelsoftheMusicsonP-804professionalpoweramplifierswillbe
used.
TheflightcaseconfigurationofthissystemwillbedifferenttotheDP-
3,sincewewillfind,forstereo,thepowerandcontrolelectronicsforthe
sub bass with the ISP-2022 dynamics processor in one flight case and two
furthermonoflightcaseswiththeconfigurationdescribedbefore,thatis,
one P-804 for the other three ways, together withthe ISP-1014 processor,
especiallysetupfortheDP-4.
The importance of the use of Musicson power amplifiers and processors
8active filters, power controllers internal phase adjustments, etc.) has
beenexplainedintheprevioussection.
3.-SYSTEMWIRING
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All Musicson DP enclosures have different rear panels with four- and
eightpinSpeakon®sockets,servingassignalinputsfromtheamplifiersor
tolinkthemtofurtherenclosures.
On the flight cases we will find eight-pin Speakon® connectors to the
enclosures,exceptonthesubbassflightcaseoftheDP-4,wherewesill
findfour-pinSpeakons.
Thecodesusedforthedifferentspeakercabinetsare:
1.-SUB-218BS.Pin1+toterminal+ofone18"
Pin1-""-
Pin2+toterminal+oftheother18"
Pin2-""-oftheother18"
2.-DP-SB1.Pin1+toterminal+ofthe18".
Pin1-toterminal-ofthe18".
Further pins connected in parallel with the second 8-pin
Speakon®
3.-DP-SB2.Pin1+toterminal+ofthe18".
Pin1-toterminal-ofthe18".
Further pins connected in parallel with the second 4-pin
Speakon®
4.-DP-G.Pin1+toterminal+ofthe15".
Pin1-toterminal-ofthe15".
Further pins connected in parallel with the second 4-pin
Speakon®
5.-DP-H.Pin1+toterminal+ofthe12".
Pin1-toterminal-ofthe12".
Pin2+toterminal+ofthe2"driver.
Pin2-toterminal-ofthe2"driver.
ItisveryimportanttoknowthatthespeakercabinetshavetwoSpeakon®
connectors, one used as the signal input and the other one serves as a
parallel connection to further enclosures of the DP-system. Cables must
alwaysbeconnectedasshownontherearpanels.
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4.-DPSYSTEMSPAREPARTS
Before we start dismantling any acoustic part of a system, we should
checkfirst,wherethefailuremayhaveoriginatedandlocateditexactly.
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We first have to make sure that the problem is not due to any element
“previous” to the electronics racked in the flight cases (such as
equalisers, mixing consoles, effects, etc.). If the problem persists, we
should check for the correct functioning of the electronics of the DP-
system: make sure that the processors are “ON” and no “MUTE” button is
pushed.Alsomakesurethatthepoweramplifiersare“ON”andthattheyare
receivingsignalfromtheprocessors.Donethis,checkthecablesfortight
and correct insertion and good condition. If Speakon® connectors are
“locked-in” correctly, they always make good contact. Even so, you might
wanttotryanothercabletoensurecorrectfunctioningofthesecomponents.
Onceallthesestepshavebeenundertakenandtheproblempersistsinany
elementoftheDP-3orDP-4,youmaywanttoproceedtakeaparttheaffected
enclosure,extractingthedamagedspeaker.
Ifwe areworkingonan18”speakeroftheSUB-218BS,youmustunscrew
thefrontgrillewithaPhillips-(cross-)screwdriverbeforeunscrewingthe
speakerwithanAllen-tool.Nowyoumaytakeoutthespeaker.
Ifweareworkingonan18”speakerofaDP-SB1orDP-SB2,wewillfirst
unscrewtheupper(orlower,dependingonthemodel)paneltogainaccessto
the 18” speaker. You may now unscrew the 8 screws of the speaker with an
Allen-toolandtakeoutthespeaker.
Incasethata2”driveroftheDP-Histhebrokenelement,firsttake
aparttheupperandlowerriggingaccessoriesonthesidesoftheenclosure,
usinganAllen-screwdriver,thescrewsgoingthroughthewoodonbothsides.
Onceunscrewedtheaccessories,youcantakeoutthegrillethroughslight
bending,sinceithasnofurtherfixingdevices.Oncethegrilleisremoved,
you may see the driver and the 12” speaker. The driver is removed by
unscrewingthehornwithaPhillipsscrewdriver,takingoutthehorn-driver
assembly.Thenyou’rereadyforreplacingthemembrane.
If we need to work on the 12” speaker, first remove the wooden back
panel.UseaPhillipsscrewdriverforthispurpose.Pleaseremovethepanel
with care, since the connector panel is also fixed to it and you might
damage the wiring to the driver and the 12” speaker. Now you remove the
Phillipsscrewsfixingthespeakertothewoodenbase.
Thesparepartsfortheseloudspeakershavethefollowingreferences:
1.Sparefor18”speaker:SpareforL-18800/8ohmforDP-3orDP-4
2.Sparefor15”speaker:SpareforL-15500/8ohm
3.Sparefor12”speaker:SpareforM-12300/G/8ohmforDP-H
4.Sparefor2”compressiondriver:SpareforHT-210/N/8ohm.
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5.-CONECTIONSANDSETUP
Sine the Musicson DP system is “ready-to-sound” live equipment, we
provideallelementsnecessarytoamplify,controlandwirethesystemthe
efficientandfastway.
Thematerialdelivereddependsonthesystemconfigurationchosenbythe
user:
5.1.-DP-3SYSTEM
ThebasicsystemthatcanbeconfiguredfromtheDP-SB1,DP-SB2andDP-H
enclosuresisasfollows:
ThematerialdeliveredbyMusicsoncontains:
-1Flightcasewith1MusicsonP-804poweramplifier
1MusicsonHE-1202poweramplifier
2ISP-1014dynamicsprocessors
Everythingconvenientlywired
ThisflightcasehasarearpanelwithXLRsocketsforthesignalinput
and connection to further, equal racks for greater configurations. Power
cord for 220 VAC / 50-60Hz mains is included. It also includes a
supplementalpowersocketandtwo8-pinSpeakon®connectorsforthespeaker
enclosures.
-Cables:2cablesof15mwithSpeakonde8pins
2cablesof1.5mwithSpeakonde8pins
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2cablesof1.5mwithSpeakonde4pins
-Speakerenclosures:2DP-SB1
2DP-SB2
2DP-H
-Wiring:Thetwo15mcableswith8-pinSpeakonsdirectlyconnecttherack
withthe 2DP-SB1enclosures.Thetwo1,5mcableswith8-pinSpeakonsare
usedtoconnecttheoutputofbothDP-SB1tobothDP-SB2.Finally,thetwo
1,5mcableswith4-pinSpeakonsareusedtoconnecttheoutputofbothDP-
SB2totheinputsofbothDP-H.
ATTENTION: In order for the speakers to receive their signal, Speakon®
connectorsmustbelocked,turningthemclockwiseuntilthelockingdevice
snapsin.
Auxiliary elements, such as effects, equalisers, mixing consoles, etc.
arenotdeliveredwiththisliveequipment.
Toexpandthesystemtodoubleitspower,Musicsonwilldeliveraflight
case containing solely a Musicson HE-1202 power amplifier, which will be
connected to the signal outputs of the main rack, including the ISP-1014
signalprocessors.
Themod.DP-Henclosureswillbeconnectedinparallelonbothchannels,
whereasthepoweramplificationrackwillpowerthebasssystemsDP-SB1and
Dp-SB2frombothchannels,asshownonthefollowingdiagram:
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5.2.-DP-4SYSTEM
Thebasicsystemthatcanbeconfigured,usingtheenclosuremodelsSUB-
218BS,DP-GandDP-Hisasfollows:
ThematerialdeliveredbyMusicsoncontains:
-2Racks,AyBeachonecontaining1MusicsonP-804poweramplifier
1ISP-1014dynamicsprocessor
Allthisconvenientlywired.
These flight cases have a rear panel with XLR sockets for the signal
input and connection to further, equal racks for greater configurations.
Power cord for 220 VAC / 50-60Hz mains is included. It also includes a
supplementalpowersocketandtwo8-pinSpeakon®connectorsforthespeaker
enclosures.
-1RackCwith1MusicsonHE-1202poweramplifier.
1ISP-2022dynamicsprocessor.
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-Cables:4cablesof15mwithSpeakonof8pins
2cablesof15mwithSpeakonof4pins
4cablesof1.5mwithSpeakonof4pins
-Speakerenclosures:2SUB-218BS
4DP-G
4DP-H
-Wiring:Thetwo15mcableswith4-pinSpeakonsareconnecteddirectlyfrom
theracktobothSUB-218BS.
Two 1,5m cables with 8-pin Speakons are to connect directly Rack A to
bothDP-G.Finally,the1,5mcableswith4-pinSpeakonsaretobeusedto
connecttheoutputsofbothDP-GwithbothDP-H.Thesameprocedureapplies
toRackBandtheotherDP-GsandDP-Hs.
Auxiliary equipment, such as effects, equalisers, mixing consoles,etc.
isnotdeliveredwiththeliveequipment.
InorderfortheDP-4SYSTEMtoworkcorrectly,pleasemakesurethatyou
linkthe signalcomingfromthe mixingconsole(orfromapossibleeffect
rack)tothesubbassrackandfromtheretobothbass-mid-highchannel,as
shownonthefollowingdiagram:
ATTENTION: In order for the speakers to receive their signal, Speakon®
connectorsmustbelocked,turningthemclockwiseuntilthelockingdevice
snapsin.
6.-CONTROLELECTRONICS
Sine the Musicson DP system is “ready-to-sound” live equipment, we
provide all elements necessary to amplify (power amplifiers), control
(dynamicsprocessors)andwirethesystemtheefficientandfastway.
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The use of these processors: ISP-2022 and ISP-1014 mandatory, not only
for the correct functioning of the acoustic systems, but also the
manipulation,substitutionthroughotherprocessorsoractivefiltersbythe
user will change these parameters, causing an immediate void on the
guaranteegrantedbythemanufactureronthesesystems.
Themaincharacteristicsoftheprocessorsarethefollowing:
6.1.-ISP-2022
ThisprocessorisonlyusedwhenacquiringaDP-4configuration.
Its configuration and characteristics turn this processor into a vital
elementinobtainingmaximumperformanceofthesubbassenclosuresofthe
DP-4system,thatis,theSUB-218BS.
Itcomesinstalledandwiredinaflightcase,togetherwiththeMusicson
HE-1202poweramplifier.
Itsmainfeaturesare:
Two-wayactivefilterwithadjustablecrossoverfrequency.
24dB/OctLinkwitz-Rileyfilters.
Highpassandlowpassfiltersforthesubbassway.
Highpassfilterforthemid-highway.
Variablegainforthelowpassoutput
Adjustabledelaybetweenways.
Phaseinversionforthelowpass.
All-passorhigh-passselectorforthemid-highoutput.
ActivepowercontrolcircuitrypresetbythemanufacturerfortheSUB-218BS.
-DESCRIPTIONOFTHEFUNCTIONS.
1. -LOWINVERSION:Whenthisswitch is onposition “NO”,themid-high
andlowfrequencyfiltersareinphase.
Atthe“YES”position,thesetwooutputsareinoppositephase(180º).
ATTENTION!Thephasementionedisreferredtotheelectricalphase,NOT
theacousticalphase.Itispossiblethat,inordertokeepthe(acoustic)
phase
of the sub bass way output in-phase, the electrical phase needs to be
invertedforsomeset-ups.
2.-LOW-HIFREQUENCY:Thisthree-positionselectorallowsselectingthe
crossoverfrequencyofbothoutputs,thevaluesbeing90,120or200Hz.The
switchingaffectssimultaneouslybothways.
FortheDP-4systemthevaluetobeselectedis90Hz.
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