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Adcom GFA-555MS manual The contents of this, manual are subject to change, Copyright2011ADCOMLLC

Models: GFA-555MS

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HIGH CURRENT

POWER AMPLIFIER

GFA-555ms

The contents of this	manual are subject to change.	Please check our website
www.ADCOM.comor	www.ADCOMUSA.com forthemostcurrentversion.

Copyright©2011ADCOMLLC

Rev 2.1

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Contents

manual are subject to change The contents of thisPlease check our website Copyright2011ADCOMLLCorattemptingtooperateit.Theinstallationando fortheGFA555msbeforeconnectingcomprehendallitsfeaturesandfunctionsandthere TheGFA555msisaverypowerfulamplifiercapableinsures veryefficient power deliveryto reactive l arlingtonconfigurationofitsdriverandoads, regardless of the phase angle of GFA555mswhichcoulddegradetheSignalThermaloverloadindicatorLEDonfrontpanel dissipationandbettertemperatureWarrantycardcarefullytounderstandtheextentof theprotectionofferedbytheWarrantyoutputpowertransistors.Althoughduringnormalho INSTALLING THE GFA-555msForuseinprofessionalinstallations,theGFA555m rackusingtheoptionalRM7rackmountadaptorsavjacksusingTefloninsulationtominimizehighfreq CONNECTING THE GFA-555msADCOMdealercanbeofhelpinselectingthebestc RIGHT/LEFT INPUTpins,spadelugs,orbananaplugs accommodateeitherbare wire,tinnedwire,terminalidentifyeachwireconductoroftheloudspeakercab systemforwireidentification.Sometimeswire.Ifyoufinditdifficulttoobtain andnotexceeding60feet,useAWG14strandedwireonthecorrectsizewireforyourspecificconnecting smallergaugeofwiretokeepwireresistanceataIn mostapplications,youcandrivetwoormoreset thanadequatepowerlevelswithnodifficulty.Itspowerdemandsfromtheamplifier einphase,onceconnections tothephasecondition, simply reverse the loudspeakersareoutofphase,theimageoftheperRepeatthelisteningtestwiththemonosignaltom originatefromapointdirectlyinfrontofyouandbetweenthetwoamplifiersinthebridgedconfigura greater amount of power in theasapositivegoingsignalattheloudspeaker tstagesandpowersupplyintheoperatereliablyandiftriggeringofprotectivede ACplug.ItprovidesthepowertooperatealltheG dproperlyinstalledinitsseatontheinsufficient;particularlyinsystemsusingverylo The GFA555ms’s power cord is supplied with a polathePOWERLEDwillglow.Ifturningontheamplifie WheneverthePOWERswitchonthefrontpanelisturrdoesnotcausethePOWERLEDto fromtheACwalloutletandturnthePOWER0switchredPOWERLEDwillglow.Push AC ON/OFF SWITCHthetopoftherocker switchtoenergizetheGFA55 switchtoturntheunitoffallyflickerunderhighvolumelistening nceorthephaseangleofthecurrentpproachingitsmaximumpoweroutput volume control to reduce thedampenedwithaverymilddetergentsolutionornon AUSINGammoniaglasscleaner installationandoperationofyourunit.Intheeveinstructed as to the proper procedure when you e returned forservice, you will beWhencallingorwritingaboutyourGFA555ms,besu retonoteandrefertoitsmodelandGFA-555msSPECIFICATIONS Signal-to-NoiseRatio, A Weighted Power Bandwidth -3dB400wattsinto8ohms ≦0.005%400wattsinto8ohms,bridged

HIGH CURRENT

The contents of this

manual are subject to change.

Please check our website

www.ADCOM.comor

www.ADCOMUSA.com forthemostcurrentversion.

Copyright©2011ADCOMLLC