CDD‐LIVE USERGUIDE
CDD‐LIVEUserGuideV1.0 7
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Introduction
Mostself‐poweredportableloudspeakershavebeenunderpowered,light‐dutysystemsorveryhigh‐endsystemsoutofreach
of many users. Now, with the multi‐purpose CDD‐LIVE! Series, Martin Audio brings everything rental companies, system
integratorsandmusiciansrequirefromaself‐poweredloudspeakerintosharpfocus.
Comprising three
full‐range models and two subwoofers, CDD‐LIVE! Covers practically all professional stand‐alone and
distributedapplications—fromsoundreinforcementandmonitoringforlivebands,DJ’sandcorporateevents,toinstallations
indanceclubs,ballrooms,theatresandperformingartscentres.
Combiningthe‘point‐source’benefitsofcoaxialdesignswith
theconsistentcoverageofDifferentialDispersiontechnology,CDD‐
LIVE! Full range systems are optimised for optimum real‐world coverage exhibiting wide horizontal dispersion close to the
speakeratthebottom oftheverticaldispersion whichnarrowsto thetopofthe verticalcoveragetoensureexcellentpower
deliveryrighttothe
backoftheroom.Thusallcornersoftheaudienceexperiencethesamesuperbsonicquality.
On‐board Class D amplification, DSP and Dante™ Digital Audio networking assure simplicity of stage set‐up and efficient
installation,whiletour‐gradeenclosuresandcomprehensivemountingoptions—includingpolemount,wallbrackets,
yokesand
rigginginserts—providemaximumflexibilityindeployment.
Withsonicconsistencyacrosstherange,arectangularcoveragefootprintandamultitudeofdeploymentoptions,CDD‐LIVE!is
trulyversatile—aprofessionalself‐poweredsolutionforahugehostofaudioapplications.
COAXIALDIFFERENTIALDISPERSIONTECHNOLOGY
Introduced by Martin Audio with the launch of the CDD Installation Series of speakers, full‐range models feature uniqu e,
patentedCoaxialDifferentialDispersion™technology.CDDsystemsaugmentthe‘point‐source’benefitsofcoaxialdriverswith
theconsistencyofcoveragewhichDifferentialDispersiontechnologycandeliver.
Non‐coaxialsystemscansufferfrom
unevenfrequencyresponseinthecrossoverregionbecauseofinterferencebetweenthe
LFandHFsections;dependingonthelisteningposition,thiscausesoff‐axisvariations,particularlyclosetotheloudspeaker.In
contrast,coaxialsystemsaimtosumLFandHFcontributionsatallpositionsoff‐axis,evenclose‐up.
AdisadvantageofconventionalcoaxialdevicescanbeHFbeaming,wheretheHFdispersionreducesathigherfrequencies.This
isprimarilybecausetheHFenergyemergesthroughanarrowtubeinthepole‐pieceofthemagnetsystem.CDDSeriescoaxial
devicesovercomethisbytheuseofastatic waveguide
thatmergesseamlesslywiththeuniqueconeshape—maintainingthe
dispersionpatternevenatveryhighfrequencies.
ADifferentialDispersionhornhasatrapezoidaldispersionpatterninbothverticalandhorizontalplaneswhichcoversthetarget
areamoreevenlythanasystemwithaconventional,fixeddispersiontypehorn.
Withaconventionalhorn,thespeakerisusually
placedaboveheadheightandaimedtowardsthecentreoftheaudience.Thisproducesanimperfectcoveragepatternwhich
missesoutsomeareas—particularlysideareasclosetothe loudspeaker.
Incontrast,aCDDCoaxialDifferentialDispersionsystemproducesarectangularcoverage
patternextendingtoallcornersofthe
audiencearea,whilewidehorizontalcoverageisachievedveryclosetotheloudspeaker.Theconsistencyoffrequencyresponse
andSPLthusachievedthroughouttheaudienceareaisexceptional.Theimprovedcoverageclosetothesourcealsomeansthat
CDDspeakerscanoftenbe
spacedfurtherapart,reducingoverallspeakercount.
CDD‐Livemarriesthisground‐breakingtechnologywithaclassDamplifierinarobustreadyenclosuretocomplementtheCDD
installationrangewitharangesuitableforportableapplicationsorfixedinstallationswhereapoweredproductisrequired.
DANTE™
AllmodelsintheCDD‐LiverangefeatureaclassDamplifierwithon‐boardDSPandinputtothesystemscanbeeitherbalanced
line level analogue or Dante™ digital audio. Introduced by Audinate, Danteis an uncompressed, multi‐channeldigital media
networking platform, with near‐zero latency and synchronization.
Dante has become the preferred digital audio networking
solution,acommonplatformthattheindustryhadbeentryingtofindformanyyears.Ithasbeenadoptedbymorepro‐a udio
AV manufacturers than any other networkin g technology. Interoperability is not a dream of the future, but a reality today.
Hundreds of Dante‐enabledproducts are available from the world’s leading manufacturers making interfacing a systemwith
CDD‐Livespeakersextremelystraightforwardoverinexpensive,readilyavailableCat5cable.