Groundloopisolatorsareavailableforaudiolinesandvideodevices.Ifyouneedassistance,contactEmotiva.Althoughthisis
notalwaysanidealsolution,thegroundingdifferencesbetweencertainhomeentertainmentcomponentssometimesrequire
groundloopisolators.Thisistheexceptionratherthantherule.
OtherProbableCausesofNoise
• SpeakernoisemayalsobecausedbyinterferenceornoiseonyourACline.Makesuretherearenolargeappliances
sharingtheline,orhalogenlampsorlight‐dimmingTriacdevices.
• TryconnectingyoursystemtoanotherACsocketonaseparateline.
• Ifthehumisheardfromwithintheamplifier,andnotthroughthespeakers,thismayalsobecausedbyinterference
ontheACorDClines.Thepowertransformersmayturnthisinterferenceintoanaudiblenoise.Internalhumcanbe
madeworsebyashelforcabinetresonating,sotrymovingtheamplifiertoanothershelf.
• TrymovingyourcomponentsfurtherawayfromtheTV,especiallyifyounoticethescreenhaschangedcolorinthe
areaclosesttothecomponent.
• Ifyouhaveveryhighefficiencyspeakers,thesemaytendtorevealnoises,whichotherspeakersdonot.
OneormoreREDlightsontheFrontPanelareBlinking
YourUltraSeriesAmplifierisequippedwitha‘ProtectMode’tominimizethepossibilityofdamagetoeitheritselfor
speakers.Ifaproblemisdetected,thechannel(s)atriskwillshutdown,followingaredblinkingonthecorresponding
indicatorlight(s).
EachREDlightindicatesafaultconditionforthecorrespondingpowermodule.
Afaultconditionisoneormoreofthefollowing:
• ExcessiveOperatingTemperature
• ExcessiveCurrent(ShortCircuit)
• DContheOutputs
Anexcessivetemperaturefaultcanberesetbyallowingamplifiertocoolandcyclingpoweron/offbuttononthefrontpanel.
Excessivecurrent(shortcircuit)canberesetbyremovingthecauseoftheshortandcyclingpoweron/offbuttononthefront
panel.DCatoutputisapossiblefaultconditionthatisequipmentrelatedandrequirestechnicalassistance.Pleasecontact
EmotivaifyouhaverepeatedproblemscausingtheREDfrontpanellighttoflashthatareNOTthermalorshortcircuit
related.
ProblemswiththewholeA/VSystem
Ifyouarehavingmorecomplexproblemsinyouroverallhomeentertainmentsystem(notjustwiththeamplifier),please
contactEmotivaSupportforassistance.877‐EMO‐Tech(877‐366‐8324)
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