Manual

Introduction
TheSP27arepowerfulDSPbasedaudioprocessors,ideallysuitedforinstallapplications,wherethey
combinethefunctionsofamultitudeofconventionalproductsinacompact1Uunitwithextensiveremote
controlcapabilities.Toachievethis,theunitshaveuptofourinputsandeightoutputswhichcanbeconfigured
inaselectionofbasiccrossovermodes-4x2way;2x3way+2Aux;2x4way;and1x8way(asapplicable
toi/oconfigurations).Theyalsooffera"freeassign"mode,whichallowscompletelyflexibleroutingofany
outputfromanycombinationofinputs.
Eachinputhasagaincontrol,variabledelayandafurthereightbandsoffullyparametricequalisation.The
parametricfilterbandshavealargeselectionofdifferentfiltertypesavailable,includingshelving.
Eachoutputhasagaincontrol,variabledelay,highandlowpasscrossoverfilters,ninebandsoffully
parametricequalisation,polarityswitchingand,additionally,afullyfeaturedlimiter,andafinalcliplimiter.The
crossoverfiltersofferslopesofupto48dB/Octave.,withavarietyofresponsesavailable.
AGPIinterfacemayalsobefittedtoallowremotememoryrecallsusingsimpleswitch closureapparatus.
Securitylock-outisavailableforallcontrols.
TheSP27arealsoequippedwithAES/EBUdigitalinputsandincludeasamplerateconverter,capableof
acceptinganythingfrom32kHzuptp192kHz.
Superbaudioquality-carefullyoptimiseddoubleprecisionsignalprocessingcoupledwith24bitconversion
ensureadynamicrangeinexcessof117dB.Thehighsamplingrateof96kHzmeansminimalfiltering
providingexceptionalsonicpuritywithabandwidthinexcessof32kHz.
Aflexibleinput/outputmulti-modeformatcatersforanyconfiguration,regardlessofscale.
Bothroutingofinputstooutputs,andganging(forediting)arecompletelyflexible.
AcompletelynewSHARCTMbasedDSPplatformsuppliesphenomenalcomputationalpower,allowingthe
unittoprovidenotonlymultiplebandsofstandardparametricequalisationoneveryinputandoutput,butan
additionalfullspectrumgraphicequaliseroneachofthefourinputs.Thisadditionalpoweralsopermitsboth
programlimitersandnoovershootcliplimitersoneachoutput.
Delayofupto650mSmaybeindependentlysetforeachoutput,withanexceptionallyfineminimumincrement
of300nS,whichcorrespondstoadistancechangeof0.1mm!
Thecomprehensivestandardspecificationalsoincludesupto255memories.
XTA'snewproprietaryComplexUnifiedNyquistTruncationalgorithmensuresthatnomatterhowmuch
equalisationisappliedtoachannel,therewillalwaysbesufficientheadroomavailabletocaterforit.
Features
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