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Adcom GFA-555MS manual WhencallingorwritingaboutyourGFA555ms,besu, retonoteandrefertoitsmodeland

Models: GFA-555MS

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WhencallingorwritingaboutyourGFA555ms,besu	retonoteandrefertoitsmodeland
serial numbers as well as the date ofpurchase and	the ADCOM authorized dealer from
whomit was purchased. Inthe event theunitmust b	e returned forservice, you will be
instructed as to the proper procedure when you	call	or write. UNDER NO
CIRCUMSTANCES SHOULD YOUR UNIT BE SHIPPED TO US WIT			HOUT PRIOR
AUTHORIZATION, OR PACKED IN OTHER THAN ITS ORIGINAL			CARTON AND
FILLERS.

AlwaysshipPREPAID VIA UPS,FDXOROTHERAPPROVEDCARRIER.DONOTSHIP VIAPARCELPOST,sincethepackingwasnotdesigned towithstandroughParcelPost handling.FREIGHTCOLLECTSHIPMENTSWILLNOTBEACC EPTED.

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Adcom GFA-555MS WhencallingorwritingaboutyourGFA555ms,besu, retonoteandrefertoitsmodeland, or write. UNDER NO, Hout Prior

Contents

Please check our website The contents of thismanual are subject to change Copyright2011ADCOMLLCcomprehendallitsfeaturesandfunctionsandthere fortheGFA555msbeforeconnectingorattemptingtooperateit.Theinstallationando TheGFA555msisaverypowerfulamplifiercapableoads, regardless of the phase angle of arlingtonconfigurationofitsdriverandinsures veryefficient power deliveryto reactive l GFA555mswhichcoulddegradetheSignaltheprotectionofferedbytheWarranty ThermaloverloadindicatorLEDonfrontpanelWarrantycardcarefullytounderstandtheextentof perationalandmechanicaltesting,shouldForuseinprofessionalinstallations,theGFA555m INSTALLING THE GFA-555msoutputpowertransistors.Althoughduringnormalho rackusingtheoptionalRM7rackmountadaptorsavADCOMdealercanbeofhelpinselectingthebestc CONNECTING THE GFA-555msjacksusingTefloninsulationtominimizehighfreq RIGHT/LEFT INPUTidentifyeachwireconductoroftheloudspeakercab accommodateeitherbare wire,tinnedwire,terminalpins,spadelugs,orbananaplugs systemforwireidentification.Sometimesthecorrectsizewireforyourspecificconnecting andnotexceeding60feet,useAWG14strandedwireonwire.Ifyoufinditdifficulttoobtain smallergaugeofwiretokeepwireresistanceatapowerdemandsfromtheamplifier thanadequatepowerlevelswithnodifficulty.ItsIn mostapplications,youcandrivetwoormoreset einphase,onceconnections totheRepeatthelisteningtestwiththemonosignaltom loudspeakersareoutofphase,theimageoftheperphasecondition, simply reverse the originatefromapointdirectlyinfrontofyouandasapositivegoingsignalattheloudspeaker greater amount of power in thebetweenthetwoamplifiersinthebridgedconfigura tstagesandpowersupplyintheoperatereliablyandiftriggeringofprotectivede insufficient;particularlyinsystemsusingverylo dproperlyinstalledinitsseatontheACplug.ItprovidesthepowertooperatealltheG The GFA555ms’s power cord is supplied with a polardoesnotcausethePOWERLEDto WheneverthePOWERswitchonthefrontpanelisturthePOWERLEDwillglow.Ifturningontheamplifie fromtheACwalloutletandturnthePOWER0switchthetopoftherocker switchtoenergizetheGFA55 AC ON/OFF SWITCHredPOWERLEDwillglow.Push switchtoturntheunitoffpproachingitsmaximumpoweroutput nceorthephaseangleofthecurrentallyflickerunderhighvolumelistening volume control to reduce theammoniaglasscleaner AUSINGdampenedwithaverymilddetergentsolutionornon installationandoperationofyourunit.IntheeveWhencallingorwritingaboutyourGFA555ms,besu e returned forservice, you will beinstructed as to the proper procedure when you retonoteandrefertoitsmodelandGFA-555msSPECIFICATIONS 400wattsinto8ohms Power Bandwidth -3dBSignal-to-NoiseRatio, A Weighted ≦0.005%400wattsinto8ohms,bridged

WhencallingorwritingaboutyourGFA555ms,besu

retonoteandrefertoitsmodeland

serial numbers as well as the date ofpurchase and

the ADCOM authorized dealer from

whomit was purchased. Inthe event theunitmust b

e returned forservice, you will be

instructed as to the proper procedure when you

call

or write. UNDER NO

HOUT PRIOR

CARTON AND

FILLERS.